United StatesSeptember 2026
National Weather Service warnings and watches: September 2026
AreaZine recorded 2,824 warnings and watches from NWS in September 2026. Nationally the NWS issued 3,688 warnings in September 2026, 76% above the average of 2,094 for September in 2008-2025, and 6,031 warnings, watches and advisories in all (IEM VTEC archive).
Which warnings did the NWS issue most in September 2026?
| Product | September 2026 | An average September, 2008-2025 |
|---|---|---|
| Severe Thunderstorm Warning | 2,242 | 970 |
| Flood Advisory | 1,371 | 992 |
| Flash Flood Warning | 876 | 426 |
| Flood Warning | 333 | 390 |
| Heat Advisory | 209 | 31 |
| Flood Watch | 167 | 45 |
| Tornado Warning | 120 | 151 |
| Dense Fog Advisory | 114 | 97 |
| Coastal Flood Advisory | 89 | 62 |
| Wind Advisory | 56 | 59 |
Source: Iowa Environmental Mesonet archive of NWS watches, warnings and advisories (VTEC). A U.S. Government work, in the public domain.
Every notice, September 2026
NWS Grand ForksWarningSeptember 3, 2026
Severe Thunderstorm Warning: Beltrami, Lake of the Woods and Roseau, MN
Expired 5:00 p.m. CDT, September 3, 2026
NWS Detroit/PontiacWarningSeptember 3, 2026
Severe Thunderstorm Warning: Wayne, MI
Expired 4:45 p.m. EDT, September 3, 2026
NWS TucsonWarningSeptember 3, 2026
Flash Flood Warning: Cochise, AZ
Expired 6:45 p.m. PDT, September 3, 2026
NWS ClevelandWarningSeptember 3, 2026
Special Marine Warning: Avon Point to Willowick OH, Willowick to Geneva-on-the Lake OH, Geneva-on-the-Lake to Conneaut OH and 5 more
Expired 5:45 p.m. EDT, September 3, 2026
NWS CharlestonWarningSeptember 3, 2026
Flash Flood Warning: Washington County, OH
Expired 6:30 p.m. EDT, September 3, 2026
NWS TucsonWarningSeptember 3, 2026
Flash Flood Warning: Graham, AZ
Expired 6:15 p.m. PDT, September 3, 2026
NWS Grand RapidsWarningSeptember 3, 2026
Severe Thunderstorm Warning: Calhoun and Jackson, MI
Expired 3:45 p.m. EDT, September 3, 2026
NWS Grand ForksWarningSeptember 3, 2026
Severe Thunderstorm Warning: Becker, Clay, Clearwater and 3 more, MN
Expired 4:15 p.m. CDT, September 3, 2026
NWS Grand RapidsWarningSeptember 3, 2026
Severe Thunderstorm Warning: Jackson, MI
Expired 4:00 p.m. EDT, September 3, 2026
NWS Northern IndianaWarningSeptember 3, 2026
Severe Thunderstorm Warning: Lagrange, Steuben, Branch and 1 more, IN and MI
Expired 4:00 p.m. EDT, September 3, 2026
NWS MiamiWarningSeptember 3, 2026
Special Marine Warning: Lake Okeechobee
Expired 4:00 p.m. EDT, September 3, 2026
NWS CharlestonWarningSeptember 3, 2026
Severe Thunderstorm Warning: Washington County, Pleasants and Tyler, OH and WV
Expired 3:45 p.m. EDT, September 3, 2026
NWS ClevelandWarningSeptember 3, 2026
Severe Thunderstorm Warning: Cuyahoga, Geauga, Lorain and 3 more, OH
Expired 4:00 p.m. EDT, September 3, 2026
NWS PittsburghWarningSeptember 3, 2026
Severe Thunderstorm Warning: Coshocton and Muskingum, OH
Expired 4:00 p.m. EDT, September 3, 2026
NWS ClevelandWarningSeptember 3, 2026
Severe Thunderstorm Warning: Portage, Stark and Summit, OH
Expired 3:45 p.m. EDT, September 3, 2026
NWS Grand ForksWarningSeptember 3, 2026
Severe Thunderstorm Warning: Clay and Norman, MN
Expired 3:45 p.m. CDT, September 3, 2026
NWS ClevelandWarningSeptember 3, 2026
Severe Thunderstorm Warning: Ashtabula, Trumbull and Crawford, OH and PA
Expired 3:45 p.m. EDT, September 3, 2026
NWS TucsonWarningSeptember 3, 2026
Flash Flood Warning: Cochise, AZ
Expired 5:45 p.m. PDT, September 3, 2026
NWS ClevelandWarningSeptember 3, 2026
Special Marine Warning: Maumee Bay to Reno Beach OH, Reno Beach to The Islands OH, Detroit River Lt. to Maumee Bay OH to Reno Beach OH beyond 5NM offshoreline to US-Canadian border and 1 more
Expired 3:45 p.m. EDT, September 3, 2026
NWS Grand ForksWarningSeptember 3, 2026
Severe Thunderstorm Warning: Mahnomen, Marshall, Norman and 4 more, MN and ND
Expired 3:45 p.m. CDT, September 3, 2026
NWS TucsonWarningSeptember 3, 2026
Flash Flood Warning: Graham and Pinal, AZ
Expired 5:30 p.m. PDT, September 3, 2026
NWS BillingsWarningSeptember 3, 2026
Red Flag Warning: Northern Cheyenne Indian Reservation/Ashland Ranger District Custer Natl Forest, Custer County, Sioux Ranger District Custer National Forest and 1 more, MT and SD
Expired 9:00 p.m. MDT, September 4, 2026
NWS BillingsWarningSeptember 3, 2026
Red Flag Warning: Crow Indian Reservation/Big Horn Canyon Rec Area and Bighorn National Forest, MT and WY
Expired 9:00 p.m. MDT, September 4, 2026
NWS Grand RapidsWarningSeptember 3, 2026
Severe Thunderstorm Warning: Clinton and Gratiot, MI
Expired 3:00 p.m. EDT, September 3, 2026
NWS MiamiWarningSeptember 3, 2026
Special Marine Warning: Lake Okeechobee
Expired 3:15 p.m. EDT, September 3, 2026
NWS Detroit/PontiacWarningSeptember 3, 2026
Severe Thunderstorm Warning: Shiawassee, MI
Expired 3:15 p.m. EDT, September 3, 2026
NWS Grand ForksWarningSeptember 3, 2026
Severe Thunderstorm Warning: Cass, Steele and Traill, ND
Expired 3:15 p.m. CDT, September 3, 2026
NWS Baltimore MD/WashingtonWarningSeptember 3, 2026
Severe Thunderstorm Warning: Page and Rockingham, VA
Expired 2:45 p.m. EDT, September 3, 2026
NWS Grand ForksWarningSeptember 3, 2026
Severe Thunderstorm Warning: Marshall, Norman, Pennington and 5 more, MN and ND
Expired 2:45 p.m. CDT, September 3, 2026
NWS North PlatteWarningSeptember 3, 2026
Red Flag Warning: Eastern Panhandle/Crescent Lake NWR, NE
Expired 9:00 p.m. CDT, September 3, 2026
NWS BismarckWarningSeptember 3, 2026
Red Flag Warning: Slope and Bowman, ND
Expired 9:00 p.m. CDT, September 4, 2026
NWS Grand ForksWarningSeptember 3, 2026
Severe Thunderstorm Warning: Griggs and Steele, ND
Expired 2:00 p.m. CDT, September 3, 2026
NWS Grand ForksWarningSeptember 3, 2026
Severe Thunderstorm Warning: Norman, Polk, Grand Forks and 2 more, MN and ND
Expired 2:00 p.m. CDT, September 3, 2026
NWS Houston/GalvestonWarningSeptember 3, 2026
Flood Warning: Liberty, Polk and San Jacinto, TX
Expired 4:45 p.m. CDT, September 3, 2026
NWS Fort WorthWarningSeptember 3, 2026
Flood Warning: Freestone, Leon and Limestone, TX
Expired 2:30 p.m. CDT, September 3, 2026
NWS Grand ForksWarningSeptember 3, 2026
Severe Thunderstorm Warning: Grand Forks, Griggs, Nelson and 2 more, ND
Expired 1:15 p.m. CDT, September 3, 2026
NWS Rapid CityWarningSeptember 3, 2026
Red Flag Warning: Pine Ridge Area, SD
Expired 8:00 p.m. MDT, September 3, 2026
NWS Houston/GalvestonWarningSeptember 3, 2026
Flood Warning: Polk, San Jacinto and Trinity, TX
Expired 3:30 p.m. CDT, September 3, 2026
NWS TopekaWarningSeptember 3, 2026
Extreme Heat Warning: Republic, Washington, Marshall and 20 more, KS
Expired 7:00 p.m. CDT, September 8, 2026
NWS Houston/GalvestonWarningSeptember 3, 2026
Flood Warning: Houston, Polk and Trinity, TX
Expired 5:30 p.m. CDT, September 3, 2026
NWS RivertonWarningSeptember 3, 2026
Red Flag Warning: North Bighorn Basin/Worland BLM, Cody Foothills, Natrona County/Casper BLM and 7 more, MT and WY
Expired 9:00 p.m. MDT, September 4, 2026
NWS Detroit/PontiacWarningSeptember 3, 2026
Severe Thunderstorm Warning: Oakland, MI
Expired 12:00 p.m. EDT, September 3, 2026
NWS Grand ForksWarningSeptember 3, 2026
Severe Thunderstorm Warning: Benson, Eddy and Ramsey, ND
Expired 12:00 p.m. CDT, September 3, 2026
NWS Lake CharlesWarningSeptember 3, 2026
Flash Flood Warning: Tyler, TX
Expired 2:00 p.m. CDT, September 3, 2026
NWS Fort WorthWarningSeptember 3, 2026
Flash Flood Warning: Freestone, TX
Expired 2:00 p.m. CDT, September 3, 2026
NWS Milwaukee/SullivanWarningSeptember 3, 2026
Flash Flood Warning: Milwaukee, Ozaukee, Washington County and 1 more, WI
Expired 12:15 p.m. CDT, September 3, 2026
NWS BismarckWarningSeptember 3, 2026
Flash Flood Warning: Bottineau, McHenry, Pierce and 1 more, ND
Expired 12:15 p.m. CDT, September 3, 2026
NWS TallahasseeWarningSeptember 3, 2026
Special Marine Warning: Coastal waters from Okaloosa-Walton County Line to Mexico Beach out 20 NM, Coastal Waters from Mexico Beach to Apalachicola out 20 NM, Coastal Waters From Ochlockonee River to
Expired 12:00 p.m. EDT, September 3, 2026
NWS State CollegeWarningSeptember 3, 2026
Severe Thunderstorm Warning: Bedford and Somerset, PA
Expired 9:45 a.m. EDT, September 3, 2026
NWS Houston/GalvestonWarningSeptember 3, 2026
Flash Flood Warning: Liberty, Polk and San Jacinto, TX
Expired 11:30 a.m. CDT, September 3, 2026
NWS Houston/GalvestonWarningSeptember 3, 2026
Flash Flood Warning: Polk, TX
Expired 10:45 a.m. CDT, September 3, 2026
NWS Fort WorthWarningSeptember 3, 2026
Flash Flood Warning: Leon, TX
Expired 11:30 a.m. CDT, September 3, 2026
NWS Milwaukee/SullivanWarningSeptember 3, 2026
Special Marine Warning: Port Washington to North Point Light WI, North Point Light to Wind Point WI, Lake Michigan from Port Washington to North Point Light WI 5NM offshore to Mid Lake and 1 more
Expired 9:30 a.m. CDT, September 3, 2026
NWS Lake CharlesWarningSeptember 3, 2026
Flood Warning: Hardin, Jefferson and Tyler, TX
Expired 5:15 p.m. CDT, September 3, 2026
NWS Mount HollyWarningSeptember 3, 2026
Flood Warning: Chester, PA
Expired 6:00 p.m. EDT, September 3, 2026
NWS Milwaukee/SullivanWarningSeptember 3, 2026
Severe Thunderstorm Warning: Dane, Green, Iowa County and 1 more, WI
Expired 8:45 a.m. CDT, September 3, 2026
NWS Milwaukee/SullivanWarningSeptember 3, 2026
Severe Thunderstorm Warning: Milwaukee, Ozaukee, Washington County and 1 more, WI
Expired 8:45 a.m. CDT, September 3, 2026
NWS Fort WorthWarningSeptember 3, 2026
Flash Flood Warning: Freestone, TX
Expired 10:45 a.m. CDT, September 3, 2026
NWS BismarckWarningSeptember 3, 2026
Flash Flood Warning: McHenry, ND
Expired 10:30 a.m. CDT, September 3, 2026
NWS TallahasseeWarningSeptember 3, 2026
Special Marine Warning: Coastal waters from Okaloosa-Walton County Line to Mexico Beach out 20 NM, Coastal Waters from Mexico Beach to Apalachicola out 20 NM and Coastal Waters From Ochlockonee River
Expired 9:00 a.m. EDT, September 3, 2026
Source: National Weather Service alerts (api.weather.gov).