United StatesMay 2026
National Weather Service warnings and watches: May 2026
AreaZine recorded 2,688 warnings and watches from NWS in May 2026. Nationally the NWS issued 4,037 warnings in May 2026, 29% below the average of 5,672 for May in 2008-2025, and 5,893 warnings, watches and advisories in all (IEM VTEC archive).
Which warnings did the NWS issue most in May 2026?
| Product | May 2026 | An average May, 2008-2025 |
|---|---|---|
| Severe Thunderstorm Warning | 2,665 | 3,568 |
| Flood Advisory | 887 | 1,011 |
| Flash Flood Warning | 408 | 489 |
| Flood Warning | 364 | 815 |
| Tornado Warning | 249 | 567 |
| Frost Advisory | 225 | 97 |
| Red Flag Warning | 145 | 121 |
| Freeze Warning | 132 | 52 |
| Wind Advisory | 122 | 137 |
| Dense Fog Advisory | 78 | 76 |
Source: Iowa Environmental Mesonet archive of NWS watches, warnings and advisories (VTEC). A U.S. Government work, in the public domain.
Every notice, May 2026
NWS Houston/GalvestonWarningMay 27, 2026
Special Marine Warning: Matagorda Bay, Coastal waters from Freeport to Matagorda Ship Channel TX out 20 NM and Waters from Freeport to Matagorda Ship Channel TX from 20 to 60 NM
Expired 11:00 a.m. CDT, May 27, 2026
NWS PittsburghWarningMay 27, 2026
Flash Flood Warning: Preston and Tucker, WV
Expired 11:45 a.m. EDT, May 27, 2026
NWS BrownsvilleWarningMay 27, 2026
Special Marine Warning: Laguna Madre From the Port Of Brownsville to the Arroyo Colorado, Laguna Madre From The Arroyo Colorado To 5 NM North Of Port Mansfield TX, Laguna Madre From 5 nm North Of Port
Expired 9:45 a.m. CDT, May 27, 2026
NWS CharlestonWarningMay 27, 2026
Flash Flood Warning: Barbour, Braxton, Calhoun and 7 more, WV
Expired 11:45 a.m. EDT, May 27, 2026
NWS TallahasseeWarningMay 27, 2026
Special Marine Warning: St. Andrews Bay Waterways, Coastal waters from Okaloosa-Walton County Line to Mexico Beach out 20 NM and Coastal Waters from Mexico Beach to Apalachicola out 20 NM
Expired 10:00 a.m. CDT, May 27, 2026
NWS Corpus ChristiWarningMay 27, 2026
Flood Warning: Aransas, Bee, Calhoun and 6 more, TX
Expired 9:30 a.m. CDT, May 27, 2026
NWS TallahasseeWarningMay 27, 2026
Special Marine Warning: Waters from Mexico Beach to Apalachicola FL from 20 to 60 NM and Waters from Suwannee River to Apalachicola FL from 20 to 60 NM
Expired 9:30 a.m. EDT, May 27, 2026
NWS Corpus ChristiWarningMay 27, 2026
Special Marine Warning: Copano, Aransas, and Redfish Bays, San Antonio, Mesquite, and Espiritu Santo Bays, Coastal waters from Baffin Bay to Port Aransas out 20 NM and 3 more
Expired 9:30 a.m. CDT, May 27, 2026
NWS BrownsvilleWarningMay 27, 2026
Special Marine Warning: Laguna Madre From 5 nm North Of Port Mansfield To Baffin Bay TX, Coastal waters from Baffin Bay to Port Mansfield TX out 20 NM and Waters from Baffin Bay to Port Mansfield TX f
Expired 9:00 a.m. CDT, May 27, 2026
NWS Fort WorthWarningMay 27, 2026
Flood Warning: Hunt and Rockwall, TX
Expired 1:01 p.m. CDT, May 28, 2026
NWS Corpus ChristiWarningMay 27, 2026
Severe Thunderstorm Warning: Aransas, Calhoun, Goliad and 2 more, TX
Expired 8:45 a.m. CDT, May 27, 2026
NWS CharlestonWarningMay 27, 2026
Flash Flood Warning: Jackson and Roane, WV
Expired 10:30 a.m. EDT, May 27, 2026
NWS Houston/GalvestonWarningMay 27, 2026
Special Marine Warning: Matagorda Bay, Coastal waters from Freeport to Matagorda Ship Channel TX out 20 NM and Waters from Freeport to Matagorda Ship Channel TX from 20 to 60 NM
Expired 9:00 a.m. CDT, May 27, 2026
NWS Corpus ChristiWarningMay 27, 2026
Flash Flood Warning: Bee and Live Oak, TX
Expired 9:00 a.m. CDT, May 27, 2026
NWS MobileWarningMay 27, 2026
Special Marine Warning: Coastal waters from Okaloosa-Walton County Line to Pensacola FL out 20 NM and Waters from Okaloosa-Walton County Line to Pensacola FL from 20 to 60 NM
Expired 8:30 a.m. CDT, May 27, 2026
NWS Corpus ChristiWarningMay 27, 2026
Severe Thunderstorm Warning: Aransas, Bee, Goliad and 5 more, TX
Expired 7:45 a.m. CDT, May 27, 2026
NWS Corpus ChristiWarningMay 27, 2026
Special Marine Warning: Baffin Bay and Upper Laguna Madre, Corpus Christi and Nueces Bays, Copano, Aransas, and Redfish Bays and 5 more
Expired 8:15 a.m. CDT, May 27, 2026
NWS TallahasseeWarningMay 27, 2026
Special Marine Warning: Coastal waters from Okaloosa-Walton County Line to Mexico Beach out 20 NM and Waters from Okaloosa-Walton County Line to Mexico Beach from 20 to 60 NM
Expired 8:30 a.m. CDT, May 27, 2026
NWS Lake CharlesWarningMay 27, 2026
Special Marine Warning: Calcasieu Lake, Coastal waters from Cameron LA to High Island TX out 20 NM, Coastal waters from Intracoastal City to Cameron LA out 20 NM and 2 more
Expired 7:15 a.m. CDT, May 27, 2026
NWS Houston/GalvestonWarningMay 27, 2026
Special Marine Warning: Waters from High Island to Freeport TX from 20 to 60 NM
Expired 6:45 a.m. CDT, May 27, 2026
NWS CharlestonWarningMay 27, 2026
Flash Flood Warning: Harrison and Taylor, WV
Expired 9:00 a.m. EDT, May 27, 2026
NWS Corpus ChristiWarningMay 27, 2026
Special Marine Warning: Baffin Bay and Upper Laguna Madre, Corpus Christi and Nueces Bays, Copano, Aransas, and Redfish Bays and 2 more
Expired 6:45 a.m. CDT, May 27, 2026
NWS Corpus ChristiWarningMay 27, 2026
Severe Thunderstorm Warning: Bee, Jim Wells, Kleberg and 4 more, TX
Expired 6:45 a.m. CDT, May 27, 2026
NWS PittsburghWarningMay 27, 2026
Flash Flood Warning: Marion, WV
Expired 7:45 a.m. EDT, May 27, 2026
NWS Baltimore MD/WashingtonWarningMay 27, 2026
Flood Warning: Garrett, MD
Expired 11:45 a.m. EDT, May 27, 2026
NWS Lake CharlesWarningMay 27, 2026
Special Marine Warning: Calcasieu Lake
Expired 6:15 a.m. CDT, May 27, 2026
NWS Lake CharlesWarningMay 27, 2026
Special Marine Warning: Sabine Lake, Coastal waters from Cameron LA to High Island TX out 20 NM and Waters from Cameron LA to High Island TX from 20 to 60 NM
Expired 6:15 a.m. CDT, May 27, 2026
NWS Corpus ChristiWarningMay 27, 2026
Severe Thunderstorm Warning: Duval, Jim Wells, Kleberg and 4 more, TX
Expired 6:00 a.m. CDT, May 27, 2026
NWS IndianapolisWarningMay 27, 2026
Flood Warning: Jackson, IN
Expired 8:00 a.m. EDT, May 27, 2026
NWS Corpus ChristiWarningMay 27, 2026
Flood Warning: Nueces, TX
Expired 2:00 a.m. CDT, May 28, 2026
NWS Houston/GalvestonWarningMay 27, 2026
Special Marine Warning: Matagorda Bay, Galveston Bay, Coastal waters from Freeport to Matagorda Ship Channel TX out 20 NM and 3 more
Expired 5:30 a.m. CDT, May 27, 2026
NWS Corpus ChristiWarningMay 27, 2026
Flash Flood Warning: Webb, TX
Expired 6:30 a.m. CDT, May 27, 2026
NWS Austin/San AntonioWarningMay 27, 2026
Flood Warning: Williamson, TX
Expired 9:26 p.m. CDT, May 27, 2026
NWS Corpus ChristiWarningMay 27, 2026
Severe Thunderstorm Warning: Webb, TX
Expired 3:45 a.m. CDT, May 27, 2026
NWS Corpus ChristiWarningMay 27, 2026
Special Marine Warning: Baffin Bay and Upper Laguna Madre, Corpus Christi and Nueces Bays, Copano, Aransas, and Redfish Bays and 5 more
Expired 4:45 a.m. CDT, May 27, 2026
NWS Houston/GalvestonWarningMay 27, 2026
Severe Thunderstorm Warning: Grimes, Houston, Madison and 4 more, TX
Expired 3:15 a.m. CDT, May 27, 2026
NWS Corpus ChristiWarningMay 27, 2026
Flash Flood Warning: Aransas, Bee, Calhoun and 4 more, TX
Expired 5:15 a.m. CDT, May 27, 2026
NWS Corpus ChristiWarningMay 27, 2026
Severe Thunderstorm Warning: Aransas, Jim Wells, Kleberg and 3 more, TX
Expired 2:45 a.m. CDT, May 27, 2026
NWS Houston/GalvestonWarningMay 27, 2026
Special Marine Warning: Matagorda Bay, Coastal waters from Freeport to Matagorda Ship Channel TX out 20 NM, Coastal waters from High Island to Freeport TX out 20 NM and 1 more
Expired 2:15 a.m. CDT, May 27, 2026
NWS Corpus ChristiWarningMay 27, 2026
Special Marine Warning: Baffin Bay and Upper Laguna Madre, Corpus Christi and Nueces Bays, Copano, Aransas, and Redfish Bays and 5 more
Expired 2:45 a.m. CDT, May 27, 2026
NWS Salt Lake CityWarningMay 27, 2026
Red Flag Warning: Henry Mountains and Grand Staircase, UT
Expired 9:00 p.m. MDT, May 28, 2026
NWS Houston/GalvestonWarningMay 27, 2026
Severe Thunderstorm Warning: Jackson, Matagorda and Wharton, TX
Expired 1:15 a.m. CDT, May 27, 2026
NWS Austin/San AntonioWarningMay 27, 2026
Severe Thunderstorm Warning: DeWitt and Lavaca, TX
Expired 12:45 a.m. CDT, May 27, 2026
NWS Houston/GalvestonWarningMay 26, 2026
Severe Thunderstorm Warning: Austin, Brazos, Burleson and 8 more, TX
Expired 1:15 a.m. CDT, May 27, 2026
NWS Corpus ChristiWarningMay 26, 2026
Severe Thunderstorm Warning: Duval and Webb, TX
Expired 12:30 a.m. CDT, May 27, 2026
NWS Austin/San AntonioWarningMay 26, 2026
Severe Thunderstorm Warning: DeWitt, Fayette, Gonzales and 1 more, TX
Expired 12:45 a.m. CDT, May 27, 2026
NWS Austin/San AntonioWarningMay 26, 2026
Severe Thunderstorm Warning: Bastrop, Fayette and Lee, TX
Expired 12:45 a.m. CDT, May 27, 2026
NWS Austin/San AntonioWarningMay 26, 2026
Severe Thunderstorm Warning: Caldwell, DeWitt, Fayette and 3 more, TX
Expired 11:45 p.m. CDT, May 26, 2026
NWS Austin/San AntonioWarningMay 26, 2026
Flash Flood Warning: Comal and Guadalupe, TX
Expired 2:00 a.m. CDT, May 27, 2026
NWS GlasgowWarningMay 26, 2026
Red Flag Warning: Fort Peck Reservation and Daniels/Roosevelt/Sheridan Counties and Dawson/McCone/Prairie/Richland/Wibaux Counties, MT
Expired 10:00 p.m. MDT, May 28, 2026
NWS Austin/San AntonioWarningMay 26, 2026
Flash Flood Warning: Bexar, TX
Expired 1:15 a.m. CDT, May 27, 2026
NWS Midland/OdessaWarningMay 26, 2026
Severe Thunderstorm Warning: Crane, Ector, Ward and 1 more, TX
Expired 10:30 p.m. CDT, May 26, 2026
NWS Corpus ChristiWarningMay 26, 2026
Flood Warning: Bee, TX
Expired 1:00 a.m. CDT, May 29, 2026
NWS Corpus ChristiWarningMay 26, 2026
Severe Thunderstorm Warning: La Salle, Live Oak and McMullen, TX
Expired 10:15 p.m. CDT, May 26, 2026
NWS FlagstaffWarningMay 26, 2026
Red Flag Warning: Northeast Plateaus and Mesas Hwy 264 Northward, Little Colorado River Valley in Coconino County, Little Colorado River Valley in Navajo County and 1 more, AZ
Expired 8:00 p.m. PDT, May 27, 2026
NWS Fort WorthWarningMay 26, 2026
Flash Flood Warning: Bell, TX
Expired 12:15 a.m. CDT, May 27, 2026
NWS Austin/San AntonioWarningMay 26, 2026
Flash Flood Warning: Blanco and Burnet, TX
Expired 12:00 a.m. CDT, May 27, 2026
NWS Corpus ChristiWarningMay 26, 2026
Severe Thunderstorm Warning: La Salle, TX
Expired 9:45 p.m. CDT, May 26, 2026
NWS Austin/San AntonioWarningMay 26, 2026
Flash Flood Warning: Burnet and Williamson, TX
Expired 12:00 a.m. CDT, May 27, 2026
NWS Austin/San AntonioWarningMay 26, 2026
Severe Thunderstorm Warning: Bandera, Bexar, Comal and 2 more, TX
Expired 9:45 p.m. CDT, May 26, 2026
Source: National Weather Service alerts (api.weather.gov).