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 TopekaWarningMay 5, 2026
Severe Thunderstorm Warning: Coffey, Lyon and Osage, KS
Expired 1:15 a.m. CDT, May 5, 2026
NWS Detroit/PontiacWarningMay 5, 2026
Special Marine Warning: Detroit River, Lake St. Clair Open Lake (U.S. Portion) and Michigan Waters of Lake Erie from Detroit River to North Cape MI
Expired 2:00 a.m. EDT, May 5, 2026
NWS DenverWarningMay 4, 2026
Winter Storm Warning: Larimer County Below 6000 Feet/Northwest Weld County, Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County, North Douglas County Below 6000 Feet/Denver/West Adam
Expired 3:00 p.m. MDT, May 6, 2026
NWS PuebloWarningMay 4, 2026
Winter Storm Warning: Northern El Paso County/Monument Ridge/Rampart Range Below 7500 Ft, CO
Expired 6:00 p.m. MDT, May 6, 2026
NWS PuebloWarningMay 4, 2026
Winter Storm Warning: Teller County/Rampart Range above 7500fT/Pike's Peak Between 7500 And 11000 Ft and Pikes Peak above 11000 Ft, CO
Expired 12:00 a.m. MDT, May 7, 2026
NWS St LouisWarningMay 4, 2026
Severe Thunderstorm Warning: Monroe and Shelby, MO
Expired 11:45 p.m. CDT, May 4, 2026
NWS WichitaWarningMay 4, 2026
Severe Thunderstorm Warning: Cowley, KS
Expired 11:30 p.m. CDT, May 4, 2026
NWS LincolnWarningMay 4, 2026
Severe Thunderstorm Warning: De Witt, Logan, McLean and 1 more, IL
Expired 11:30 p.m. CDT, May 4, 2026
NWS Kansas City/Pleasant HillWarningMay 4, 2026
Severe Thunderstorm Warning: Macon and Randolph, MO
Expired 11:00 p.m. CDT, May 4, 2026
NWS LincolnWarningMay 4, 2026
Severe Thunderstorm Warning: Cass, Mason, Menard and 2 more, IL
Expired 11:15 p.m. CDT, May 4, 2026
NWS Key WestWarningMay 4, 2026
Special Marine Warning: Florida Bay including Barnes Sound, Blackwater Sound, and Buttonwood Sound and Hawk Channel from Ocean Reef to Craig Key out to the reef
Expired 11:00 p.m. EDT, May 4, 2026
NWS LincolnWarningMay 4, 2026
Severe Thunderstorm Warning: Christian, Macon and Shelby, IL
Expired 10:30 p.m. CDT, May 4, 2026
NWS Northern IndianaWarningMay 4, 2026
Severe Thunderstorm Warning: Berrien, MI
Expired 9:30 p.m. EDT, May 4, 2026
NWS Northern IndianaWarningMay 4, 2026
Special Marine Warning: New Buffalo MI to St Joseph MI, Michigan City IN to New Buffalo MI and Lake Michigan Michigan City IN to St. Joseph MI 5 NM offshore to mid-line of lake.
Expired 9:15 p.m. EDT, May 4, 2026
NWS New OrleansWarningMay 4, 2026
Flood Warning: St. Tammany, Hancock and Pearl River, LA and MS
Expired 7:00 a.m. CDT, May 8, 2026
NWS Detroit/PontiacWarningMay 4, 2026
Severe Thunderstorm Warning: Macomb and Wayne, MI
Expired 8:30 p.m. EDT, May 4, 2026
NWS LincolnWarningMay 4, 2026
Severe Thunderstorm Warning: Knox, Marshall, Peoria and 1 more, IL
Expired 8:15 p.m. CDT, May 4, 2026
NWS LincolnWarningMay 4, 2026
Severe Thunderstorm Warning: Fulton and Knox, IL
Expired 8:00 p.m. CDT, May 4, 2026
NWS ChicagoWarningMay 4, 2026
Severe Thunderstorm Warning: La Salle, IL
Expired 7:30 p.m. CDT, May 4, 2026
NWS St LouisWarningMay 4, 2026
Severe Thunderstorm Warning: Bond and Montgomery, IL
Expired 7:15 p.m. CDT, May 4, 2026
NWS Quad Cities IAWarningMay 4, 2026
Severe Thunderstorm Warning: Bureau and Putnam, IL
Expired 7:15 p.m. CDT, May 4, 2026
NWS Northern IndianaWarningMay 4, 2026
Special Marine Warning: New Buffalo MI to St Joseph MI, Michigan City IN to New Buffalo MI and Lake Michigan Michigan City IN to St. Joseph MI 5 NM offshore to mid-line of lake.
Expired 7:00 p.m. EDT, May 4, 2026
NWS LincolnWarningMay 4, 2026
Severe Thunderstorm Warning: Knox, Peoria and Stark, IL
Expired 7:15 p.m. CDT, May 4, 2026
NWS Milwaukee/SullivanWarningMay 4, 2026
Special Marine Warning: Sheboygan to Port Washington WI, Port Washington to North Point Light WI, Lake Michigan from Sheboygan to Port Washington WI 5NM offshore to Mid Lake and 1 more
Expired 7:15 p.m. CDT, May 4, 2026
NWS Milwaukee/SullivanWarningMay 4, 2026
Special Marine Warning: Port Washington to North Point Light WI, North Point Light to Wind Point WI, Wind Point WI to Winthrop Harbor IL and 4 more
Expired 7:00 p.m. CDT, May 4, 2026
NWS LincolnWarningMay 4, 2026
Severe Thunderstorm Warning: Knox, IL
Expired 6:30 p.m. CDT, May 4, 2026
NWS Quad Cities IAWarningMay 4, 2026
Severe Thunderstorm Warning: Henry and Mercer, IL
Expired 6:30 p.m. CDT, May 4, 2026
NWS ChicagoWarningMay 4, 2026
Severe Thunderstorm Warning: Cook and Lake, IL and IN
Expired 6:30 p.m. CDT, May 4, 2026
NWS Milwaukee/SullivanWarningMay 4, 2026
Special Marine Warning: Sheboygan to Port Washington WI, Port Washington to North Point Light WI, Lake Michigan from Sheboygan to Port Washington WI 5NM offshore to Mid Lake and 1 more
Expired 6:30 p.m. CDT, May 4, 2026
NWS FairbanksWarningMay 4, 2026
Heavy Freezing Spray Warning: Cape Stephens to Moses Point out to 15 NM
Expired 5:00 a.m. AKDT, May 5, 2026
NWS LincolnWarningMay 4, 2026
Dust Storm Warning: McLean, IL
Expired 5:00 p.m. CDT, May 4, 2026
NWS LincolnWarningMay 4, 2026
Dust Storm Warning: Champaign, De Witt, McLean and 2 more, IL
Expired 5:15 p.m. CDT, May 4, 2026
NWS LincolnWarningMay 4, 2026
Dust Storm Warning: De Witt, Logan, McLean and 1 more, IL
Expired 5:00 p.m. CDT, May 4, 2026
NWS Grand RapidsWarningMay 4, 2026
Red Flag Warning: Lake, Osceola, Clare and 7 more, MI
Expired 7:00 p.m. EDT, May 4, 2026
NWS Detroit/PontiacWarningMay 4, 2026
Red Flag Warning: Midland, Bay, Huron and 6 more, MI
Expired 7:00 p.m. EDT, May 4, 2026
NWS AlbanyWarningMay 4, 2026
Red Flag Warning: Middle Hudson Valley, NY
Expired 7:00 p.m. EDT, May 5, 2026
NWS GaylordWarningMay 4, 2026
Red Flag Warning: Emmet, Cheboygan, Presque Isle and 20 more, MI
Expired 9:00 p.m. EDT, May 4, 2026
NWS DenverWarningMay 4, 2026
Winter Storm Warning: South and Southeast Grand/West Central and Southwest Boulder/Gilpin/Clear Creek/Summit/North and West Park Counties Above 9000 Feet and Jefferson and West Douglas Counties Above
Expired 3:00 p.m. MDT, May 6, 2026
NWS CheyenneWarningMay 4, 2026
Winter Storm Warning: Central Laramie County, WY
Expired 9:00 a.m. MDT, May 6, 2026
NWS Midland/OdessaWarningMay 4, 2026
High Wind Warning: Guadalupe Mountains of Eddy County, Guadalupe Mountains Above 7000 Feet and Guadalupe and Delaware Mountains, NM and TX
Expired 9:00 p.m. MDT, May 5, 2026
NWS SpokaneWarningMay 4, 2026
Flood Warning: Chelan, WA
Expired 12:00 p.m. PDT, May 5, 2026
NWS New OrleansWarningMay 4, 2026
Flood Warning: Washington County and Pearl River, LA and MS
Expired 7:00 p.m. CDT, May 5, 2026
NWS Key WestWarningMay 4, 2026
Special Marine Warning: Straits of Florida from Ocean Reef to Craig Key out 20 NM, Straits of Florida from Ocean Reef to Craig Key 20 to 60 NM out and Straits of Florida from Craig Key to west end of
Expired 4:45 a.m. EDT, May 4, 2026
NWS Key WestWarningMay 4, 2026
Special Marine Warning: Straits of Florida from Ocean Reef to Craig Key out 20 NM, Straits of Florida from Craig Key to west end of Seven Mile Bridge out 20 NM, Straits of Florida from Ocean Reef to C
Expired 4:00 a.m. EDT, May 4, 2026
NWS Key WestWarningMay 4, 2026
Special Marine Warning: Straits of Florida from Ocean Reef to Craig Key out 20 NM and Straits of Florida from Ocean Reef to Craig Key 20 to 60 NM out
Expired 3:45 a.m. EDT, May 4, 2026
NWS CheyenneWarningMay 4, 2026
Winter Storm Warning: South Laramie Range and South Laramie Range Foothills, WY
Expired 12:00 p.m. MDT, May 6, 2026
NWS CheyenneWarningMay 4, 2026
Winter Storm Warning: Snowy Range, WY
Expired 12:00 p.m. MDT, May 6, 2026
NWS CheyenneWarningMay 4, 2026
Winter Storm Warning: North Snowy Range Foothills, WY
Expired 12:00 p.m. MDT, May 6, 2026
NWS CheyenneWarningMay 4, 2026
Winter Storm Warning: South Laramie Range and South Laramie Range Foothills, WY
Expired 12:00 p.m. MDT, May 6, 2026
NWS CheyenneWarningMay 4, 2026
Winter Storm Warning: Snowy Range, WY
Expired 12:00 p.m. MDT, May 6, 2026
NWS CheyenneWarningMay 4, 2026
Winter Storm Warning: North Snowy Range Foothills, WY
Expired 12:00 p.m. MDT, May 6, 2026
NWS Key WestWarningMay 4, 2026
Special Marine Warning: Hawk Channel from Ocean Reef to Craig Key out to the reef, Straits of Florida from Ocean Reef to Craig Key out 20 NM and Straits of Florida from Ocean Reef to Craig Key 20 to 6
Expired 3:00 a.m. EDT, May 4, 2026
NWS MiamiWarningMay 4, 2026
Special Marine Warning: Coastal waters from Deerfield Beach to Ocean Reef FL out 20 NM and Waters from Deerfield Beach to Ocean Reef FL from 20 to 60 NM excluding the territorial waters of Bahamas
Expired 1:45 a.m. EDT, May 4, 2026
NWS DenverWarningMay 4, 2026
Winter Storm Warning: South and East Jackson/Larimer/North and Northeast Grand/Northwest Boulder Counties Above 9000 Feet and Larimer and Boulder Counties Between 6000 and 9000 Feet, CO
Expired 3:00 p.m. MDT, May 6, 2026
NWS Key WestWarningMay 4, 2026
Special Marine Warning: Florida Bay including Barnes Sound, Blackwater Sound, and Buttonwood Sound and Bayside and Gulfside from Craig Key to West End of Seven Mile Bridge
Expired 1:00 a.m. EDT, May 4, 2026
NWS MiamiWarningMay 4, 2026
Special Marine Warning: Biscayne Bay, Coastal waters from Deerfield Beach to Ocean Reef FL out 20 NM and Waters from Deerfield Beach to Ocean Reef FL from 20 to 60 NM excluding the territorial waters
Expired 12:45 a.m. EDT, May 4, 2026
NWS FairbanksWarningMay 3, 2026
Flood Warning: Nenana, AK
Expired 12:00 p.m. AKDT, May 5, 2026
NWS Key WestWarningMay 3, 2026
Special Marine Warning: Straits of Florida from Ocean Reef to Craig Key out 20 NM and Straits of Florida from Ocean Reef to Craig Key 20 to 60 NM out
Expired 10:15 p.m. EDT, May 3, 2026
NWS Key WestWarningMay 3, 2026
Special Marine Warning: Straits of Florida from Ocean Reef to Craig Key out 20 NM, Straits of Florida from Craig Key to west end of Seven Mile Bridge out 20 NM, Straits of Florida from Ocean Reef to C
Expired 8:45 p.m. EDT, May 3, 2026
NWS Key WestWarningMay 3, 2026
Special Marine Warning: Straits of Florida from Craig Key to west end of Seven Mile Bridge 20 to 60 NM out
Expired 6:45 p.m. EDT, May 3, 2026
Source: National Weather Service alerts (api.weather.gov).
Earlier notices kept from May 2026
13 earlier notices in AreaZine's record; the latest first below. Every one, oldest first: May 7, 2026 to May 27, 2026.
- Civil Danger Warning Test Issued for Roseau, MN Roseau, MN NOAA
- AMBER Alert Issued for Los Angeles, Riverside, San Diego CA Los Angeles, Riverside, San Diego CA NOAA
- AMBER Alert Issued for Los Angeles and Orange Counties Los Angeles and Orange Counties, CA NOAA
- Red Flag Warning Issued for South Central Nebraska and North Central Kansas South Central Nebraska and North Central Kansas NOAA
- Civil Emergency Message Issued for Saratoga, Wyoming Saratoga, Wyoming NOAA
- Special Marine Warning Issued for Coastal Waters from Tarpon Springs to Suwannee River Through 7 PM Coastal Florida (Tarpon Springs to Suwannee River) NOAA
- Shelter in Place Warning All Clear - Manor, TX Travis County, Texas NOAA
- Severe Thunderstorm Warning Issued for Custer and Dewey Counties in Oklahoma Western and Northwestern Oklahoma NOAA
- Fire Warning Issued for Lincoln Areas Near Capitans Lincoln NOAA
- Evacuation Immediate Alert Issued for Lincoln Lincoln NOAA
- Special Marine Warning Issued for Charleston Harbor and Coastal South Carolina Waters Coastal South Carolina NOAA
- Boil Order Alert Issued for McCammon Area McCammon, Idaho NOAA
- Severe Thunderstorm Warning Issued for Christian, Macon, and Sangamon Counties in Central Illinois Central Illinois NOAA
Notices AreaZine published before its record of the live feed began. AreaZine no longer holds each agency's full record for them, so each line shows what AreaZine recorded and links the agency where it gave a link.