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May 8, 2026 to October 8, 2026

Extreme Heat Warnings in California: every notice

277 notices from May 8, 2026 to October 8, 2026 of Extreme Heat Warnings in California.

May 8, 2026 to October 8, 2026

  1. Extreme Heat Warning: Coachella Valley, San Diego County Deserts and San Gorgonio Pass Near Banning, CA Coachella Valley, San Diego County Deserts and San Gorgonio Pass Near Banning expired
  2. Extreme Heat Warning: Imperial County Southwest, Salton Sea and Imperial County West, CA Imperial County Southwest, Salton Sea and Imperial County West expired
  3. Extreme Heat Warning: Parker Valley, Yuma, Imperial Valley and 2 more, AZ and CA Parker Valley, Yuma, Imperial Valley and 2 more expired
  4. Extreme Heat Warning: Western Shasta County Mountains Above 3000 ft, Shasta Lake Area and Interstate 5 Between 1000-3000 ft, Eastern Shasta County Foothills Between 1000-3000 ft and 1 more, CA Western Shasta County Mountains Above 3000 ft, Shasta Lake Area and Interstate 5 Between 1000-3000 ft, Eastern Shasta County Foothills Between 1000-3000 ft and 1 more expired
  5. Extreme Heat Warning: Western Shasta County Foothills Between 1000-3000 ft, South-Central Shasta County Including Redding Metro, Sierra Nevada of Tehama-Butte-Plumas Counties Between 1000-3000 ft and Western Shasta County Foothills Between 1000-3000 ft, South-Central Shasta County Including Redding Metro, Sierra Nevada of Tehama-Butte-Plumas Counties Between 1000-3000 ft and 3 more expired
  6. Extreme Heat Warning: Imperial County Southwest, Imperial County West and Imperial Valley, CA Imperial County Southwest, Imperial County West and Imperial Valley expired
  7. Extreme Heat Warning: Parker Valley, Yuma, Central La Paz and 1 more, AZ and CA Parker Valley, Yuma, Central La Paz and 1 more expired
  8. Extreme Heat Warning: San Diego County Deserts, CA San Diego County Deserts expired
  9. Extreme Heat Warning: San Diego County Deserts, CA San Diego County Deserts expired
  10. Extreme Heat Warning: Parker Valley, Kofa, Yuma and 10 more, AZ and CA Parker Valley, Kofa, Yuma and 10 more expired
  11. Extreme Heat Warning: Coachella Valley, CA Coachella Valley expired
  12. Extreme Heat Warning: San Diego County Deserts, CA San Diego County Deserts expired
  13. Extreme Heat Warning: San Gorgonio Pass Near Banning, CA San Gorgonio Pass Near Banning expired
  14. Extreme Heat Warning: Parker Valley, Imperial County Southwest, Imperial County West and 3 more, AZ and CA Parker Valley, Imperial County Southwest, Imperial County West and 3 more expired
  15. Extreme Heat Warning: Parker Valley, Imperial County Southwest, Imperial County West and 3 more, AZ and CA Parker Valley, Imperial County Southwest, Imperial County West and 3 more expired
  16. Extreme Heat Warning: Cuyama Valley, Santa Barbara County Interior Mountains, Interstate 5 Corridor and 2 more, CA Cuyama Valley, Santa Barbara County Interior Mountains, Interstate 5 Corridor and 2 more expired
  17. Extreme Heat Warning: Santa Barbara County Southwestern Coast, Santa Barbara County Southeastern Coast, Santa Ynez Mountains Western Range and 11 more, CA Santa Barbara County Southwestern Coast, Santa Barbara County Southeastern Coast, Santa Ynez Mountains Western Range and 11 more expired
  18. Extreme Heat Warning: Santa Clarita Valley, Los Angeles County Inland Coast including Downtown Los Angeles, Western San Fernando Valley and 3 more, CA Santa Clarita Valley, Los Angeles County Inland Coast including Downtown Los Angeles, Western San Fernando Valley and 3 more expired
  19. Extreme Heat Warning: San Bernardino and Riverside County Valleys-The Inland Empire, San Diego County Inland Valleys, San Bernardino County Mountains and 5 more, CA San Bernardino and Riverside County Valleys-The Inland Empire, San Diego County Inland Valleys, San Bernardino County Mountains and 5 more expired
  20. Extreme Heat Warning: Parker Valley, Yuma, Imperial County Southwest and 6 more, AZ and CA Parker Valley, Yuma, Imperial County Southwest and 6 more expired
  21. Extreme Heat Warning: Coachella Valley, CA Coachella Valley expired
  22. Extreme Heat Warning: San Diego County Deserts, CA San Diego County Deserts expired
  23. Extreme Heat Warning: Apple and Lucerne Valleys, CA Apple and Lucerne Valleys expired
  24. Extreme Heat Warning: Coachella Valley, San Diego County Deserts and San Gorgonio Pass Near Banning, CA Coachella Valley, San Diego County Deserts and San Gorgonio Pass Near Banning expired
  25. Extreme Heat Warning: Antelope Valley, CA Antelope Valley expired
  26. Extreme Heat Warning: Lake Havasu and Fort Mohave, Lake Mead - AZ side, Lake Mohave - AZ side and 13 more, AZ and CA Lake Havasu and Fort Mohave, Lake Mead - AZ side, Lake Mohave - AZ side and 13 more expired
  27. Extreme Heat Warning: Apple and Lucerne Valleys, CA Apple and Lucerne Valleys expired
  28. Extreme Heat Warning: Coachella Valley, San Diego County Deserts and San Gorgonio Pass Near Banning, CA Coachella Valley, San Diego County Deserts and San Gorgonio Pass Near Banning expired
  29. Extreme Heat Warning: San Bernardino and Riverside County Valleys-The Inland Empire, CA San Bernardino and Riverside County Valleys-The Inland Empire expired
  30. Extreme Heat Warning: San Diego County Mountains, CA San Diego County Mountains expired
  31. Extreme Heat Warning: Indian Wells Valley and Mojave Desert, CA Indian Wells Valley and Mojave Desert expired
  32. Extreme Heat Warning: Apple and Lucerne Valleys, CA Apple and Lucerne Valleys expired
  33. Extreme Heat Warning: Coachella Valley, San Diego County Deserts and San Gorgonio Pass Near Banning, CA Coachella Valley, San Diego County Deserts and San Gorgonio Pass Near Banning expired
  34. Extreme Heat Warning: San Bernardino and Riverside County Valleys-The Inland Empire, CA San Bernardino and Riverside County Valleys-The Inland Empire expired
  35. Extreme Heat Warning: San Diego County Mountains, CA San Diego County Mountains expired
  36. Extreme Heat Warning: Apple and Lucerne Valleys, CA Apple and Lucerne Valleys expired
  37. Extreme Heat Warning: Coachella Valley, San Diego County Deserts and San Gorgonio Pass Near Banning, CA Coachella Valley, San Diego County Deserts and San Gorgonio Pass Near Banning expired
  38. Extreme Heat Warning: San Bernardino and Riverside County Valleys-The Inland Empire, CA San Bernardino and Riverside County Valleys-The Inland Empire expired
  39. Extreme Heat Warning: San Diego County Mountains, CA San Diego County Mountains expired
  40. Extreme Heat Warning: Antelope Valley, CA Antelope Valley expired
  41. Extreme Heat Warning: Apple and Lucerne Valleys, CA Apple and Lucerne Valleys expired
  42. Extreme Heat Warning: Coachella Valley, San Diego County Deserts and San Gorgonio Pass Near Banning, CA Coachella Valley, San Diego County Deserts and San Gorgonio Pass Near Banning expired
  43. Extreme Heat Warning: San Bernardino and Riverside County Valleys-The Inland Empire, CA San Bernardino and Riverside County Valleys-The Inland Empire expired
  44. Extreme Heat Warning: San Diego County Mountains, CA San Diego County Mountains expired
  45. Extreme Heat Warning: Lake Havasu and Fort Mohave, Lake Mead - AZ side, Lake Mohave - AZ side and 13 more, AZ and CA Lake Havasu and Fort Mohave, Lake Mead - AZ side, Lake Mohave - AZ side and 13 more expired
  46. Extreme Heat Warning: Antelope Valley, CA Antelope Valley expired
  47. Extreme Heat Warning: Kofa, Central La Paz, Southeast Yuma County and 9 more, AZ and CA Kofa, Central La Paz, Southeast Yuma County and 9 more expired
  48. Extreme Heat Warning: Northwest Plateau, Lake Havasu and Fort Mohave, Lake Mead - AZ side and 19 more, AZ and CA Northwest Plateau, Lake Havasu and Fort Mohave, Lake Mead - AZ side and 19 more expired
  49. Extreme Heat Warning: Apple and Lucerne Valleys, CA Apple and Lucerne Valleys expired
  50. Extreme Heat Warning: Coachella Valley, San Diego County Deserts and San Gorgonio Pass Near Banning, CA Coachella Valley, San Diego County Deserts and San Gorgonio Pass Near Banning expired
  51. Extreme Heat Warning: Orange County Inland, CA Orange County Inland expired
  52. Extreme Heat Warning: Riverside County Mountains, CA Riverside County Mountains expired
  53. Extreme Heat Warning: San Bernardino and Riverside County Valleys-The Inland Empire, CA San Bernardino and Riverside County Valleys-The Inland Empire expired
  54. Extreme Heat Warning: San Diego County Inland Valleys, CA San Diego County Inland Valleys expired
  55. Extreme Heat Warning: San Diego County Mountains, CA San Diego County Mountains expired
  56. Extreme Heat Warning: Santa Ana Mountains and Foothills, CA Santa Ana Mountains and Foothills expired
  57. Extreme Heat Warning: Indian Wells Valley, Mojave Desert Slopes and Mojave Desert, CA Indian Wells Valley, Mojave Desert Slopes and Mojave Desert expired
  58. Extreme Heat Warning: Cuyama Valley, Santa Clarita Valley, Southern Salinas Valley and 19 more, CA Cuyama Valley, Santa Clarita Valley, Southern Salinas Valley and 19 more expired
  59. Extreme Heat Warning: Interstate 5 Corridor and Western San Gabriel Mountains and Highway 14 Corridor, CA Interstate 5 Corridor and Western San Gabriel Mountains and Highway 14 Corridor expired
  60. Extreme Heat Warning: Western Antelope Valley Foothills, Eastern Antelope Valley Foothills and Antelope Valley, CA Western Antelope Valley Foothills, Eastern Antelope Valley Foothills and Antelope Valley expired
  61. Extreme Heat Warning: Western Antelope Valley Foothills, Eastern Antelope Valley Foothills and Antelope Valley, CA Western Antelope Valley Foothills, Eastern Antelope Valley Foothills and Antelope Valley expired
  62. Extreme Heat Warning: Cuyama Valley, CA Cuyama Valley expired
  63. Extreme Heat Warning: Northern Ventura County Mountains, CA Northern Ventura County Mountains expired
  64. Extreme Heat Warning: Apple and Lucerne Valleys, CA Apple and Lucerne Valleys expired
  65. Extreme Heat Warning: Northwest Plateau, Lake Havasu and Fort Mohave, Lake Mead - AZ side and 19 more, AZ and CA Northwest Plateau, Lake Havasu and Fort Mohave, Lake Mead - AZ side and 19 more expired
  66. Extreme Heat Warning: Western Antelope Valley Foothills, Eastern Antelope Valley Foothills and Antelope Valley, CA Western Antelope Valley Foothills, Eastern Antelope Valley Foothills and Antelope Valley expired
  67. Extreme Heat Warning: Cuyama Valley, CA Cuyama Valley expired
  68. Extreme Heat Warning: Northern Ventura County Mountains, CA Northern Ventura County Mountains expired
  69. Extreme Heat Warning: Los Banos - Dos Palos, Merced - Madera - Mendota, Planada - Le Grand - Snelling and 20 more, CA Los Banos - Dos Palos, Merced - Madera - Mendota, Planada - Le Grand - Snelling and 20 more expired
  70. Extreme Heat Warning: West Side Mountains north of 198, CA West Side Mountains north of 198 expired
  71. Extreme Heat Warning: Imperial County Southwest, Salton Sea, Imperial County Southeast and 2 more, CA Imperial County Southwest, Salton Sea, Imperial County Southeast and 2 more expired
  72. Extreme Heat Warning: Joshua Tree NP West, Joshua Tree NP East, Chuckwalla Mountains and 1 more, CA Joshua Tree NP West, Joshua Tree NP East, Chuckwalla Mountains and 1 more expired
  73. Extreme Heat Warning: Parker Valley, Kofa, Yuma and 5 more, AZ and CA Parker Valley, Kofa, Yuma and 5 more expired
  74. Extreme Heat Warning: Apple and Lucerne Valleys, CA Apple and Lucerne Valleys expired
  75. Extreme Heat Warning: Coachella Valley, San Diego County Deserts and San Gorgonio Pass Near Banning, CA Coachella Valley, San Diego County Deserts and San Gorgonio Pass Near Banning expired
  76. Extreme Heat Warning: Mariposa-Madera Lower Sierra, CA Mariposa-Madera Lower Sierra expired
  77. Extreme Heat Warning: Parker Valley, Kofa, Yuma and 9 more, AZ and CA Parker Valley, Kofa, Yuma and 9 more expired
  78. Extreme Heat Warning: Lake Havasu and Fort Mohave, Lake Mead - AZ side, Lake Mohave - AZ side and 13 more, AZ and CA Lake Havasu and Fort Mohave, Lake Mead - AZ side, Lake Mohave - AZ side and 13 more expired
  79. Extreme Heat Warning: Coachella Valley, San Diego County Deserts and San Gorgonio Pass Near Banning, CA Coachella Valley, San Diego County Deserts and San Gorgonio Pass Near Banning expired
  80. Extreme Heat Warning: Coachella Valley, San Diego County Deserts and San Gorgonio Pass Near Banning, CA Coachella Valley, San Diego County Deserts and San Gorgonio Pass Near Banning expired
  81. Extreme Heat Warning: Indian Wells Valley, Mojave Desert Slopes and Mojave Desert, CA Indian Wells Valley, Mojave Desert Slopes and Mojave Desert expired
  82. Extreme Heat Warning: Apple and Lucerne Valleys, CA Apple and Lucerne Valleys expired
  83. Extreme Heat Warning: Catalina and Santa Barbara Islands, Santa Barbara County Southwestern Coast, Santa Barbara County Southeastern Coast and 6 more, CA Catalina and Santa Barbara Islands, Santa Barbara County Southwestern Coast, Santa Barbara County Southeastern Coast and 6 more expired
  84. Extreme Heat Warning: Cuyama Valley, CA Cuyama Valley expired
  85. Extreme Heat Warning: Santa Clarita Valley, Santa Ynez Mountains Western Range, Santa Ynez Mountains Eastern Range and 16 more, CA Santa Clarita Valley, Santa Ynez Mountains Western Range, Santa Ynez Mountains Eastern Range and 16 more expired
  86. Extreme Heat Warning: Western Antelope Valley Foothills, Eastern Antelope Valley Foothills and Antelope Valley, CA Western Antelope Valley Foothills, Eastern Antelope Valley Foothills and Antelope Valley expired
  87. Extreme Heat Warning: Joshua Tree NP East, Salton Sea, Chuckwalla Mountains and 1 more, CA Joshua Tree NP East, Salton Sea, Chuckwalla Mountains and 1 more expired
  88. Extreme Heat Warning: Imperial County West and Imperial Valley, CA Imperial County West and Imperial Valley expired
  89. Extreme Heat Warning: Parker Valley, Central La Paz, Palo Verde Valley and 1 more, AZ and CA Parker Valley, Central La Paz, Palo Verde Valley and 1 more expired
  90. Extreme Heat Warning: Imperial County Southwest, CA Imperial County Southwest expired
  91. Extreme Heat Warning: Coachella Valley, San Diego County Deserts and San Gorgonio Pass Near Banning, CA Coachella Valley, San Diego County Deserts and San Gorgonio Pass Near Banning expired
  92. Extreme Heat Warning: Lake Havasu and Fort Mohave, Lake Mead - AZ side, Lake Mohave - AZ side and 9 more, AZ and CA Lake Havasu and Fort Mohave, Lake Mead - AZ side, Lake Mohave - AZ side and 9 more expired
  93. Extreme Heat Warning: Catalina and Santa Barbara Islands, CA Catalina and Santa Barbara Islands expired
  94. Extreme Heat Warning: Malibu Coast, Los Angeles County Beaches, Palos Verdes Hills and 7 more, CA Malibu Coast, Los Angeles County Beaches, Palos Verdes Hills and 7 more expired
  95. Extreme Heat Warning: Cuyama Valley, Santa Clarita Valley, San Luis Obispo County Beaches and 20 more, CA Cuyama Valley, Santa Clarita Valley, San Luis Obispo County Beaches and 20 more expired
  96. Extreme Heat Warning: San Diego County Coastal Areas and Orange County Coastal, CA San Diego County Coastal Areas and Orange County Coastal expired
  97. Extreme Heat Warning: San Bernardino and Riverside County Valleys-The Inland Empire, CA San Bernardino and Riverside County Valleys-The Inland Empire expired
  98. Extreme Heat Warning: San Diego County Inland Valleys, CA San Diego County Inland Valleys expired
  99. Extreme Heat Warning: Santa Ana Mountains and Foothills, CA Santa Ana Mountains and Foothills expired
  100. Extreme Heat Warning: Coachella Valley, San Diego County Deserts and San Gorgonio Pass Near Banning, CA Coachella Valley, San Diego County Deserts and San Gorgonio Pass Near Banning expired
  101. Extreme Heat Warning: Orange County Inland, CA Orange County Inland expired
  102. Extreme Heat Warning: Lake Havasu and Fort Mohave, Lake Mead - AZ side, Lake Mohave - AZ side and 9 more, AZ and CA Lake Havasu and Fort Mohave, Lake Mead - AZ side, Lake Mohave - AZ side and 9 more expired
  103. Extreme Heat Warning: Orange County Coastal, CA Orange County Coastal Warning
  104. Extreme Heat Warning: Orange County Inland, CA Orange County Inland Warning
  105. Extreme Heat Warning: San Bernardino and Riverside County Valleys-The Inland Empire, CA San Bernardino and Riverside County Valleys-The Inland Empire Warning
  106. Extreme Heat Warning: San Diego County Coastal Areas, CA San Diego County Coastal Areas Warning
  107. Extreme Heat Warning: San Diego County Inland Valleys, CA San Diego County Inland Valleys Warning
  108. Extreme Heat Warning: Santa Ana Mountains and Foothills, CA Santa Ana Mountains and Foothills Warning
  109. Extreme Heat Warning: Catalina and Santa Barbara Islands, Santa Clarita Valley, Ventura County Beaches and 16 more, CA Catalina and Santa Barbara Islands, Santa Clarita Valley, Ventura County Beaches and 16 more Warning
  110. Extreme Heat Warning: Cuyama Valley, Santa Barbara County Southwestern Coast, Santa Barbara County Southeastern Coast and 4 more, CA Cuyama Valley, Santa Barbara County Southwestern Coast, Santa Barbara County Southeastern Coast and 4 more Warning
  111. Extreme Heat Warning: Orange County Coastal, CA Orange County Coastal Warning
  112. Extreme Heat Warning: Orange County Inland, CA Orange County Inland Warning
  113. Extreme Heat Warning: San Bernardino and Riverside County Valleys-The Inland Empire, CA San Bernardino and Riverside County Valleys-The Inland Empire Warning
  114. Extreme Heat Warning: San Diego County Coastal Areas, CA San Diego County Coastal Areas Warning
  115. Extreme Heat Warning: San Diego County Inland Valleys, CA San Diego County Inland Valleys Warning
  116. Extreme Heat Warning: Santa Ana Mountains and Foothills, CA Santa Ana Mountains and Foothills Warning
  117. Extreme Heat Warning: Orange County Coastal, CA Orange County Coastal Warning
  118. Extreme Heat Warning: Orange County Inland, CA Orange County Inland Warning
  119. Extreme Heat Warning: San Bernardino and Riverside County Valleys-The Inland Empire, CA San Bernardino and Riverside County Valleys-The Inland Empire Warning
  120. Extreme Heat Warning: San Diego County Coastal Areas, CA San Diego County Coastal Areas Warning
  121. Extreme Heat Warning: San Diego County Inland Valleys, CA San Diego County Inland Valleys Warning
  122. Extreme Heat Warning: Santa Ana Mountains and Foothills, CA Santa Ana Mountains and Foothills Warning
  123. Extreme Heat Warning: Orange County Coastal, CA Orange County Coastal Warning
  124. Extreme Heat Warning: Orange County Inland, CA Orange County Inland Warning
  125. Extreme Heat Warning: San Bernardino and Riverside County Valleys-The Inland Empire, CA San Bernardino and Riverside County Valleys-The Inland Empire Warning
  126. Extreme Heat Warning: San Diego County Coastal Areas, CA San Diego County Coastal Areas Warning
  127. Extreme Heat Warning: San Diego County Inland Valleys, CA San Diego County Inland Valleys Warning
  128. Extreme Heat Warning: Santa Ana Mountains and Foothills, CA Santa Ana Mountains and Foothills Warning
  129. Extreme Heat Warning: Catalina and Santa Barbara Islands, Santa Clarita Valley, Ventura County Inland Coast and 14 more, CA Catalina and Santa Barbara Islands, Santa Clarita Valley, Ventura County Inland Coast and 14 more Warning
  130. Extreme Heat Warning: Cuyama Valley, Santa Barbara County Southwestern Coast, Santa Barbara County Southeastern Coast and 4 more, CA Cuyama Valley, Santa Barbara County Southwestern Coast, Santa Barbara County Southeastern Coast and 4 more Warning
  131. Extreme Heat Warning: Ventura County Beaches and Malibu Coast, CA Ventura County Beaches and Malibu Coast Warning
  132. Extreme Heat Warning: Catalina and Santa Barbara Islands, Santa Clarita Valley, Ventura County Beaches and 16 more, CA Catalina and Santa Barbara Islands, Santa Clarita Valley, Ventura County Beaches and 16 more Warning
  133. Extreme Heat Warning: Cuyama Valley, Santa Barbara County Southwestern Coast, Santa Barbara County Southeastern Coast and 4 more, CA Cuyama Valley, Santa Barbara County Southwestern Coast, Santa Barbara County Southeastern Coast and 4 more Warning
  134. Extreme Heat Warning: Orange County Coastal, CA Orange County Coastal Warning
  135. Extreme Heat Warning: Orange County Inland, CA Orange County Inland Warning
  136. Extreme Heat Warning: San Bernardino and Riverside County Valleys-The Inland Empire, CA San Bernardino and Riverside County Valleys-The Inland Empire Warning
  137. Extreme Heat Warning: San Diego County Coastal Areas, CA San Diego County Coastal Areas Warning
  138. Extreme Heat Warning: San Diego County Inland Valleys, CA San Diego County Inland Valleys Warning
  139. Extreme Heat Warning: Santa Ana Mountains and Foothills, CA Santa Ana Mountains and Foothills Warning
  140. Extreme Heat Warning: San Bernardino and Riverside County Valleys-The Inland Empire, CA San Bernardino and Riverside County Valleys-The Inland Empire Warning
  141. Extreme Heat Warning: Orange County Coastal, CA Orange County Coastal Warning
  142. Extreme Heat Warning: Orange County Inland, CA Orange County Inland Warning
  143. Extreme Heat Warning: San Diego County Coastal Areas, CA San Diego County Coastal Areas Warning
  144. Extreme Heat Warning: San Diego County Inland Valleys, CA San Diego County Inland Valleys Warning
  145. Extreme Heat Warning: Santa Ana Mountains and Foothills, CA Santa Ana Mountains and Foothills Warning
  146. Extreme Heat Warning: Orange County Coastal, CA Orange County Coastal Warning
  147. Extreme Heat Warning: Orange County Inland, CA Orange County Inland Warning
  148. Extreme Heat Warning: San Bernardino and Riverside County Valleys-The Inland Empire, CA San Bernardino and Riverside County Valleys-The Inland Empire Warning
  149. Extreme Heat Warning: San Diego County Coastal Areas, CA San Diego County Coastal Areas Warning
  150. Extreme Heat Warning: San Diego County Inland Valleys, CA San Diego County Inland Valleys Warning
  151. Extreme Heat Warning: Santa Ana Mountains and Foothills, CA Santa Ana Mountains and Foothills Warning
  152. Extreme Heat Warning: Orange County Coastal, CA Orange County Coastal Warning
  153. Extreme Heat Warning: Orange County Inland, CA Orange County Inland Warning
  154. Extreme Heat Warning: San Bernardino and Riverside County Valleys-The Inland Empire, CA San Bernardino and Riverside County Valleys-The Inland Empire Warning
  155. Extreme Heat Warning: San Diego County Coastal Areas, CA San Diego County Coastal Areas Warning
  156. Extreme Heat Warning: San Diego County Inland Valleys, CA San Diego County Inland Valleys Warning
  157. Extreme Heat Warning: Santa Ana Mountains and Foothills, CA Santa Ana Mountains and Foothills Warning
  158. Extreme Heat Warning: Catalina and Santa Barbara Islands, Santa Clarita Valley, Ventura County Beaches and 16 more, CA Catalina and Santa Barbara Islands, Santa Clarita Valley, Ventura County Beaches and 16 more Warning
  159. Extreme Heat Warning: Cuyama Valley, Santa Barbara County Southwestern Coast, Santa Barbara County Southeastern Coast and 4 more, CA Cuyama Valley, Santa Barbara County Southwestern Coast, Santa Barbara County Southeastern Coast and 4 more Warning
  160. Extreme Heat Warning: Orange County Coastal, CA Orange County Coastal Warning
  161. Extreme Heat Warning: Orange County Inland, CA Orange County Inland Warning
  162. Extreme Heat Warning: San Bernardino and Riverside County Valleys-The Inland Empire, CA San Bernardino and Riverside County Valleys-The Inland Empire Warning
  163. Extreme Heat Warning: San Diego County Coastal Areas, CA San Diego County Coastal Areas Warning
  164. Extreme Heat Warning: San Diego County Inland Valleys, CA San Diego County Inland Valleys Warning
  165. Extreme Heat Warning: Santa Ana Mountains and Foothills, CA Santa Ana Mountains and Foothills Warning
  166. Extreme Heat Warning: Orange County Coastal, CA Orange County Coastal Warning
  167. Extreme Heat Warning: Orange County Inland, CA Orange County Inland Warning
  168. Extreme Heat Warning: San Bernardino and Riverside County Valleys-The Inland Empire, CA San Bernardino and Riverside County Valleys-The Inland Empire Warning
  169. Extreme Heat Warning: San Diego County Coastal Areas, CA San Diego County Coastal Areas Warning
  170. Extreme Heat Warning: San Diego County Inland Valleys, CA San Diego County Inland Valleys Warning
  171. Extreme Heat Warning: Santa Ana Mountains and Foothills, CA Santa Ana Mountains and Foothills Warning
  172. Extreme Heat Warning: Death Valley National Park, CA Death Valley National Park Warning
  173. Extreme Heat Warning: Orange County Coastal, CA Orange County Coastal Warning
  174. Extreme Heat Warning: Orange County Inland, CA Orange County Inland Warning
  175. Extreme Heat Warning: San Bernardino and Riverside County Valleys-The Inland Empire, CA San Bernardino and Riverside County Valleys-The Inland Empire Warning
  176. Extreme Heat Warning: San Diego County Coastal Areas, CA San Diego County Coastal Areas Warning
  177. Extreme Heat Warning: San Diego County Inland Valleys, CA San Diego County Inland Valleys Warning
  178. Extreme Heat Warning: Santa Ana Mountains and Foothills, CA Santa Ana Mountains and Foothills Warning
  179. Extreme Heat Warning: Catalina and Santa Barbara Islands, Santa Clarita Valley, Ventura County Beaches and 16 more, CA Catalina and Santa Barbara Islands, Santa Clarita Valley, Ventura County Beaches and 16 more Warning
  180. Extreme Heat Warning: Cuyama Valley, Santa Barbara County Southwestern Coast, Santa Barbara County Southeastern Coast and 4 more, CA Cuyama Valley, Santa Barbara County Southwestern Coast, Santa Barbara County Southeastern Coast and 4 more Warning
  181. Extreme Heat Warning: Orange County Coastal, CA Orange County Coastal Warning
  182. Extreme Heat Warning: Orange County Inland, CA Orange County Inland Warning
  183. Extreme Heat Warning: San Bernardino and Riverside County Valleys-The Inland Empire, CA San Bernardino and Riverside County Valleys-The Inland Empire Warning
  184. Extreme Heat Warning: San Diego County Coastal Areas, CA San Diego County Coastal Areas Warning
  185. Extreme Heat Warning: San Diego County Inland Valleys, CA San Diego County Inland Valleys Warning
  186. Extreme Heat Warning: Santa Ana Mountains and Foothills, CA Santa Ana Mountains and Foothills Warning
  187. Extreme Heat Warning: Death Valley National Park, CA Death Valley National Park Warning
  188. Extreme Heat Warning: Orange County Coastal, CA Orange County Coastal Warning
  189. Extreme Heat Warning: Orange County Inland, CA Orange County Inland Warning
  190. Extreme Heat Warning: San Bernardino and Riverside County Valleys-The Inland Empire, CA San Bernardino and Riverside County Valleys-The Inland Empire Warning
  191. Extreme Heat Warning: San Diego County Coastal Areas, CA San Diego County Coastal Areas Warning
  192. Extreme Heat Warning: San Diego County Inland Valleys, CA San Diego County Inland Valleys Warning
  193. Extreme Heat Warning: Santa Ana Mountains and Foothills, CA Santa Ana Mountains and Foothills Warning
  194. Extreme Heat Warning: Death Valley National Park, CA Death Valley National Park Warning
  195. Extreme Heat Warning: Orange County Coastal, CA Orange County Coastal Warning
  196. Extreme Heat Warning: Orange County Inland, CA Orange County Inland Warning
  197. Extreme Heat Warning: San Bernardino and Riverside County Valleys-The Inland Empire, CA San Bernardino and Riverside County Valleys-The Inland Empire Warning
  198. Extreme Heat Warning: San Diego County Coastal Areas, CA San Diego County Coastal Areas Warning
  199. Extreme Heat Warning: San Diego County Inland Valleys, CA San Diego County Inland Valleys Warning
  200. Extreme Heat Warning: Santa Ana Mountains and Foothills, CA Santa Ana Mountains and Foothills Warning
  201. Extreme Heat Warning: Orange County Coastal, CA Orange County Coastal Warning
  202. Extreme Heat Warning: Orange County Inland, CA Orange County Inland Warning
  203. Extreme Heat Warning: San Bernardino and Riverside County Valleys-The Inland Empire, CA San Bernardino and Riverside County Valleys-The Inland Empire Warning
  204. Extreme Heat Warning: San Diego County Coastal Areas, CA San Diego County Coastal Areas Warning
  205. Extreme Heat Warning: San Diego County Inland Valleys, CA San Diego County Inland Valleys Warning
  206. Extreme Heat Warning: Santa Ana Mountains and Foothills, CA Santa Ana Mountains and Foothills Warning
  207. Extreme Heat Warning: Catalina and Santa Barbara Islands, Santa Clarita Valley, Ventura County Beaches and 16 more, CA Catalina and Santa Barbara Islands, Santa Clarita Valley, Ventura County Beaches and 16 more Warning
  208. Extreme Heat Warning: Cuyama Valley, Santa Barbara County Southwestern Coast, Santa Barbara County Southeastern Coast and 4 more, CA Cuyama Valley, Santa Barbara County Southwestern Coast, Santa Barbara County Southeastern Coast and 4 more Warning
  209. Extreme Heat Warning: Death Valley National Park, CA Death Valley National Park Warning
  210. Extreme Heat Warning: Orange County Coastal, CA Orange County Coastal Warning
  211. Extreme Heat Warning: Orange County Inland, CA Orange County Inland Warning
  212. Extreme Heat Warning: San Bernardino and Riverside County Valleys-The Inland Empire, CA San Bernardino and Riverside County Valleys-The Inland Empire Warning
  213. Extreme Heat Warning: San Diego County Coastal Areas, CA San Diego County Coastal Areas Warning
  214. Extreme Heat Warning: San Diego County Inland Valleys, CA San Diego County Inland Valleys Warning
  215. Extreme Heat Warning: Santa Ana Mountains and Foothills, CA Santa Ana Mountains and Foothills Warning
  216. Extreme Heat Warning: Orange County Coastal, CA Orange County Coastal Warning
  217. Extreme Heat Warning: Orange County Inland, CA Orange County Inland Warning
  218. Extreme Heat Warning: San Bernardino and Riverside County Valleys-The Inland Empire, CA San Bernardino and Riverside County Valleys-The Inland Empire Warning
  219. Extreme Heat Warning: San Diego County Coastal Areas, CA San Diego County Coastal Areas Warning
  220. Extreme Heat Warning: San Diego County Inland Valleys, CA San Diego County Inland Valleys Warning
  221. Extreme Heat Warning: Santa Ana Mountains and Foothills, CA Santa Ana Mountains and Foothills Warning
  222. Extreme Heat Warning: Death Valley National Park, CA Death Valley National Park Warning
  223. Extreme Heat Warning: Catalina and Santa Barbara Islands, Santa Clarita Valley, Ventura County Beaches and 16 more, CA Catalina and Santa Barbara Islands, Santa Clarita Valley, Ventura County Beaches and 16 more Warning
  224. Extreme Heat Warning: Cuyama Valley, Santa Barbara County Southwestern Coast, Santa Barbara County Southeastern Coast and 4 more, CA Cuyama Valley, Santa Barbara County Southwestern Coast, Santa Barbara County Southeastern Coast and 4 more Warning
  225. Extreme Heat Warning: Imperial County West and Imperial Valley, CA Imperial County West and Imperial Valley Warning
  226. Extreme Heat Warning: Parker Valley, Gila River Valley, Palo Verde Valley and 1 more, AZ and CA Parker Valley, Gila River Valley, Palo Verde Valley and 1 more Warning
  227. Extreme Heat Warning: Coachella Valley, San Diego County Deserts and San Gorgonio Pass Near Banning, CA Coachella Valley, San Diego County Deserts and San Gorgonio Pass Near Banning Warning
  228. Extreme Heat Warning: Orange County Coastal, CA Orange County Coastal Warning
  229. Extreme Heat Warning: Orange County Inland, CA Orange County Inland Warning
  230. Extreme Heat Warning: San Bernardino and Riverside County Valleys-The Inland Empire, CA San Bernardino and Riverside County Valleys-The Inland Empire Warning
  231. Extreme Heat Warning: San Diego County Coastal Areas, CA San Diego County Coastal Areas Warning
  232. Extreme Heat Warning: San Diego County Inland Valleys, CA San Diego County Inland Valleys Warning
  233. Extreme Heat Warning: Santa Ana Mountains and Foothills, CA Santa Ana Mountains and Foothills Warning
  234. Extreme Heat Warning: Death Valley National Park, CA Death Valley National Park Warning
  235. Extreme Heat Warning: Coachella Valley, San Diego County Deserts and San Gorgonio Pass Near Banning, CA Coachella Valley, San Diego County Deserts and San Gorgonio Pass Near Banning Warning
  236. Extreme Heat Warning: Orange County Coastal, CA Orange County Coastal Warning
  237. Extreme Heat Warning: Orange County Inland, CA Orange County Inland Warning
  238. Extreme Heat Warning: San Bernardino and Riverside County Valleys-The Inland Empire, CA San Bernardino and Riverside County Valleys-The Inland Empire Warning
  239. Extreme Heat Warning: San Diego County Coastal Areas, CA San Diego County Coastal Areas Warning
  240. Extreme Heat Warning: San Diego County Inland Valleys, CA San Diego County Inland Valleys Warning
  241. Extreme Heat Warning: Santa Ana Mountains and Foothills, CA Santa Ana Mountains and Foothills Warning
  242. Extreme Heat Warning: Imperial County West and Imperial Valley, CA Imperial County West and Imperial Valley Warning
  243. Extreme Heat Warning: Parker Valley, Gila River Valley, Palo Verde Valley and 1 more, AZ and CA Parker Valley, Gila River Valley, Palo Verde Valley and 1 more Warning
  244. Extreme Heat Warning: Death Valley National Park, CA Death Valley National Park Warning
  245. Extreme Heat Warning: Catalina and Santa Barbara Islands, Santa Clarita Valley, Ventura County Beaches and 16 more, CA Catalina and Santa Barbara Islands, Santa Clarita Valley, Ventura County Beaches and 16 more Warning
  246. Extreme Heat Warning: Cuyama Valley, Santa Barbara County Southwestern Coast, Santa Barbara County Southeastern Coast and 4 more, CA Cuyama Valley, Santa Barbara County Southwestern Coast, Santa Barbara County Southeastern Coast and 4 more Warning
  247. Extreme Heat Warning: Coachella Valley, San Diego County Deserts and San Gorgonio Pass Near Banning, CA Coachella Valley, San Diego County Deserts and San Gorgonio Pass Near Banning Warning
  248. Extreme Heat Warning: Orange County Coastal, CA Orange County Coastal Warning
  249. Extreme Heat Warning: Orange County Inland, CA Orange County Inland Warning
  250. Extreme Heat Warning: San Bernardino and Riverside County Valleys-The Inland Empire, CA San Bernardino and Riverside County Valleys-The Inland Empire Warning
  251. Extreme Heat Warning: San Diego County Coastal Areas, CA San Diego County Coastal Areas Warning
  252. Extreme Heat Warning: San Diego County Inland Valleys, CA San Diego County Inland Valleys Warning
  253. Extreme Heat Warning: Santa Ana Mountains and Foothills, CA Santa Ana Mountains and Foothills Warning
  254. Extreme Heat Warning: Imperial County West and Imperial Valley, CA Imperial County West and Imperial Valley Warning
  255. Extreme Heat Warning: Parker Valley, Gila River Valley, Palo Verde Valley and 1 more, AZ and CA Parker Valley, Gila River Valley, Palo Verde Valley and 1 more Warning
  256. Extreme Heat Warning: Death Valley National Park, CA Death Valley National Park Warning
  257. Extreme Heat Warning: Catalina and Santa Barbara Islands, Santa Clarita Valley, Ventura County Beaches and 16 more, CA Catalina and Santa Barbara Islands, Santa Clarita Valley, Ventura County Beaches and 16 more Warning
  258. Extreme Heat Warning: Cuyama Valley, Santa Barbara County Southwestern Coast, Santa Barbara County Southeastern Coast and 4 more, CA Cuyama Valley, Santa Barbara County Southwestern Coast, Santa Barbara County Southeastern Coast and 4 more Warning
  259. Extreme Heat Warning: Coachella Valley, San Diego County Deserts and San Gorgonio Pass Near Banning, CA Coachella Valley, San Diego County Deserts and San Gorgonio Pass Near Banning Warning
  260. Extreme Heat Warning: Orange County Coastal, CA Orange County Coastal Warning
  261. Extreme Heat Warning: Orange County Inland, CA Orange County Inland Warning
  262. Extreme Heat Warning: San Bernardino and Riverside County Valleys-The Inland Empire, CA San Bernardino and Riverside County Valleys-The Inland Empire Warning
  263. Extreme Heat Warning: San Diego County Coastal Areas, CA San Diego County Coastal Areas Warning
  264. Extreme Heat Warning: San Diego County Inland Valleys, CA San Diego County Inland Valleys Warning
  265. Extreme Heat Warning: Santa Ana Mountains and Foothills, CA Santa Ana Mountains and Foothills Warning
  266. Extreme Heat Warning: Imperial County West and Imperial Valley, CA Imperial County West and Imperial Valley Warning
  267. Extreme Heat Warning: Parker Valley, Gila River Valley, Palo Verde Valley and 1 more, AZ and CA Parker Valley, Gila River Valley, Palo Verde Valley and 1 more Warning
  268. Extreme Heat Warning: Coachella Valley, San Diego County Deserts and San Gorgonio Pass Near Banning, CA Coachella Valley, San Diego County Deserts and San Gorgonio Pass Near Banning Warning
  269. Extreme Heat Warning: Orange County Coastal, CA Orange County Coastal Warning
  270. Extreme Heat Warning: Orange County Inland, CA Orange County Inland Warning
  271. Extreme Heat Warning: San Bernardino and Riverside County Valleys-The Inland Empire, CA San Bernardino and Riverside County Valleys-The Inland Empire Warning
  272. Extreme Heat Warning: San Diego County Coastal Areas, CA San Diego County Coastal Areas Warning
  273. Extreme Heat Warning: San Diego County Inland Valleys, CA San Diego County Inland Valleys Warning
  274. Extreme Heat Warning: Santa Ana Mountains and Foothills, CA Santa Ana Mountains and Foothills Warning
  275. Extreme Heat Warning: Death Valley National Park, CA Death Valley National Park Warning
  276. Extreme Heat Warning: Catalina and Santa Barbara Islands, Santa Clarita Valley, Ventura County Beaches and 16 more, CA Catalina and Santa Barbara Islands, Santa Clarita Valley, Ventura County Beaches and 16 more Warning
  277. Extreme Heat Warning: Cuyama Valley, Santa Barbara County Southwestern Coast, Santa Barbara County Southeastern Coast and 4 more, CA Cuyama Valley, Santa Barbara County Southwestern Coast, Santa Barbara County Southeastern Coast and 4 more Warning

Source: National Weather Service alerts (api.weather.gov). A U.S. Government work, in the public domain.

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Extreme Heat Warnings in California