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 Baltimore MD/WashingtonWarningSeptember 3, 2026
Special Marine Warning: Tidal Potomac from Key Bridge to Indian Head MD, Tidal Potomac from Indian Head to Cobb Island MD and Tidal Potomac from Cobb Island MD to Smith Point VA
Expired 1:00 a.m. EDT, September 4, 2026
NWS Baltimore MD/WashingtonWarningSeptember 3, 2026
Special Marine Warning: Patapsco River including Baltimore Harbor
Expired 12:00 a.m. EDT, September 4, 2026
NWS BuffaloWarningSeptember 3, 2026
Flash Flood Warning: Erie, Livingston and Wyoming County, NY
Expired 2:15 a.m. EDT, September 4, 2026
NWS Baltimore MD/WashingtonWarningSeptember 3, 2026
Severe Thunderstorm Warning: Grant, Hampshire and Mineral, WV
Expired 10:45 p.m. EDT, September 3, 2026
NWS PittsburghWarningSeptember 3, 2026
Severe Thunderstorm Warning: Preston and Tucker, WV
Expired 11:15 p.m. EDT, September 3, 2026
NWS Baltimore MD/WashingtonWarningSeptember 3, 2026
Severe Thunderstorm Warning: Carroll, Frederick, Howard and 1 more, MD
Expired 11:00 p.m. EDT, September 3, 2026
NWS Grand ForksWarningSeptember 3, 2026
Severe Thunderstorm Warning: Hubbard, MN
Expired 11:00 p.m. CDT, September 3, 2026
NWS CharlestonWarningSeptember 3, 2026
Severe Thunderstorm Warning: Barbour, Harrison and Taylor, WV
Expired 10:30 p.m. EDT, September 3, 2026
NWS Rapid CityWarningSeptember 3, 2026
Red Flag Warning: Butte County Area, Northern Campbell, Southern Campbell and 3 more, SD and WY
Expired 8:00 p.m. MDT, September 4, 2026
NWS Mount HollyWarningSeptember 3, 2026
Severe Thunderstorm Warning: Carbon and Monroe, PA
Expired 10:00 p.m. EDT, September 3, 2026
NWS Grand ForksWarningSeptember 3, 2026
Severe Thunderstorm Warning: Clearwater, Mahnomen and Polk, MN
Expired 10:15 p.m. CDT, September 3, 2026
NWS PittsburghWarningSeptember 3, 2026
Severe Thunderstorm Warning: Marion, Monongalia and Wetzel, WV
Expired 10:00 p.m. EDT, September 3, 2026
NWS BuffaloWarningSeptember 3, 2026
Flash Flood Warning: Erie and Wyoming County, NY
Expired 12:45 a.m. EDT, September 4, 2026
NWS Grand ForksWarningSeptember 3, 2026
Severe Thunderstorm Warning: Otter Tail, MN
Expired 9:15 p.m. CDT, September 3, 2026
NWS WilmingtonWarningSeptember 3, 2026
Severe Thunderstorm Warning: Champaign, Logan and Union, OH
Expired 8:45 p.m. EDT, September 3, 2026
NWS Grand ForksWarningSeptember 3, 2026
Severe Thunderstorm Warning: Clearwater, Polk and Red Lake, MN
Expired 9:15 p.m. CDT, September 3, 2026
NWS Grand ForksWarningSeptember 3, 2026
Severe Thunderstorm Warning: Beltrami, Clearwater, Marshall and 2 more, MN
Expired 9:15 p.m. CDT, September 3, 2026
NWS State CollegeWarningSeptember 3, 2026
Tornado Warning: Bedford, Blair and Cambria, PA
Expired 8:30 p.m. EDT, September 3, 2026
NWS PittsburghWarningSeptember 3, 2026
Flash Flood Warning: Carroll, Columbiana, Harrison and 4 more, OH and PA
Expired 10:45 p.m. EDT, September 3, 2026
NWS PittsburghWarningSeptember 3, 2026
Flash Flood Warning: Lawrence and Mercer, PA
Expired 10:30 p.m. EDT, September 3, 2026
NWS State CollegeWarningSeptember 3, 2026
Flash Flood Warning: Cambria and Somerset, PA
Expired 10:15 p.m. EDT, September 3, 2026
NWS Grand ForksWarningSeptember 3, 2026
Severe Thunderstorm Warning: Marshall, Pennington, Polk and 1 more, MN
Expired 8:15 p.m. CDT, September 3, 2026
NWS Grand ForksWarningSeptember 3, 2026
Severe Thunderstorm Warning: Otter Tail and Wilkin, MN
Expired 8:15 p.m. CDT, September 3, 2026
NWS PittsburghWarningSeptember 3, 2026
Severe Thunderstorm Warning: Fayette, Indiana County and Westmoreland, PA
Expired 7:45 p.m. EDT, September 3, 2026
NWS State CollegeWarningSeptember 3, 2026
Severe Thunderstorm Warning: Cambria and Somerset, PA
Expired 7:45 p.m. EDT, September 3, 2026
NWS PittsburghWarningSeptember 3, 2026
Flash Flood Warning: Fayette, Indiana County and Westmoreland, PA
Expired 10:00 p.m. EDT, September 3, 2026
NWS ClevelandWarningSeptember 3, 2026
Severe Thunderstorm Warning: Crawford, PA
Expired 8:15 p.m. EDT, September 3, 2026
NWS ClevelandWarningSeptember 3, 2026
Severe Thunderstorm Warning: Holmes, Mahoning, Stark and 1 more, OH
Expired 8:00 p.m. EDT, September 3, 2026
NWS PittsburghWarningSeptember 3, 2026
Flash Flood Warning: Allegheny, Armstrong, Indiana County and 1 more, PA
Expired 9:45 p.m. EDT, September 3, 2026
NWS ClevelandWarningSeptember 3, 2026
Severe Thunderstorm Warning: Portage, Summit and Wayne, OH
Expired 7:30 p.m. EDT, September 3, 2026
NWS PittsburghWarningSeptember 3, 2026
Severe Thunderstorm Warning: Washington County, PA
Expired 6:45 p.m. EDT, September 3, 2026
NWS PittsburghWarningSeptember 3, 2026
Flash Flood Warning: Allegheny, Armstrong, Beaver and 5 more, PA and WV
Expired 9:15 p.m. EDT, September 3, 2026
NWS ClevelandWarningSeptember 3, 2026
Severe Thunderstorm Warning: Ashland, Huron, Lorain and 3 more, OH
Expired 7:30 p.m. EDT, September 3, 2026
NWS PittsburghWarningSeptember 3, 2026
Flash Flood Warning: Mercer, PA
Expired 9:00 p.m. EDT, September 3, 2026
NWS ClevelandWarningSeptember 3, 2026
Severe Thunderstorm Warning: Crawford, Hancock, Huron and 4 more, OH
Expired 7:15 p.m. EDT, September 3, 2026
NWS PittsburghWarningSeptember 3, 2026
Severe Thunderstorm Warning: Columbiana, Allegheny, Beaver and 2 more, OH and PA
Expired 6:45 p.m. EDT, September 3, 2026
NWS TucsonWarningSeptember 3, 2026
Flash Flood Warning: Pima, AZ
Expired 9:00 p.m. PDT, September 3, 2026
NWS Northern IndianaWarningSeptember 3, 2026
Severe Thunderstorm Warning: Henry and Putnam, OH
Expired 6:30 p.m. EDT, September 3, 2026
NWS ClevelandWarningSeptember 3, 2026
Severe Thunderstorm Warning: Cuyahoga, Geauga and Lake, OH
Expired 7:00 p.m. EDT, September 3, 2026
NWS ClevelandWarningSeptember 3, 2026
Flash Flood Warning: Mahoning, Portage and Stark, OH
Expired 8:45 p.m. EDT, September 3, 2026
NWS ClevelandWarningSeptember 3, 2026
Special Marine Warning: Willowick to Geneva-on-the Lake OH and Willowick to Geneva-on-the-Lake OH beyond 5NM off shoreline to US-Canadian border
Expired 7:15 p.m. EDT, September 3, 2026
NWS PittsburghWarningSeptember 3, 2026
Flash Flood Warning: Columbiana, Allegheny, Beaver and 2 more, OH and PA
Expired 8:45 p.m. EDT, September 3, 2026
NWS PittsburghWarningSeptember 3, 2026
Flash Flood Warning: Columbiana, Beaver and Lawrence, OH and PA
Expired 8:30 p.m. EDT, September 3, 2026
NWS PittsburghWarningSeptember 3, 2026
Severe Thunderstorm Warning: Armstrong, Butler, Clarion and 3 more, PA
Expired 6:00 p.m. EDT, September 3, 2026
NWS PittsburghWarningSeptember 3, 2026
Severe Thunderstorm Warning: Columbiana, Allegheny, Beaver and 4 more, OH and PA
Expired 6:00 p.m. EDT, September 3, 2026
NWS TucsonWarningSeptember 3, 2026
Flash Flood Warning: Pinal, AZ
Expired 8:00 p.m. PDT, September 3, 2026
NWS Greenville-SpartanburgWarningSeptember 3, 2026
Severe Thunderstorm Warning: Graham, NC
Expired 5:30 p.m. EDT, September 3, 2026
NWS DuluthWarningSeptember 3, 2026
Severe Thunderstorm Warning: Cass and Itasca, MN
Expired 6:00 p.m. CDT, September 3, 2026
NWS PittsburghWarningSeptember 3, 2026
Severe Thunderstorm Warning: Butler, Lawrence and Mercer, PA
Expired 5:30 p.m. EDT, September 3, 2026
NWS Tampa Bay RuskinWarningSeptember 3, 2026
Special Marine Warning: Coastal waters from Tarpon Springs to Suwannee River FL out 20 NM
Expired 5:30 p.m. EDT, September 3, 2026
NWS ClevelandWarningSeptember 3, 2026
Special Marine Warning: The Islands to Vermilion OH, Vermilion to Avon Point OH, Avon Point to Willowick OH and 3 more
Expired 6:45 p.m. EDT, September 3, 2026
NWS Lake CharlesWarningSeptember 3, 2026
Flood Warning: Hardin and Jefferson, TX
Expired 7:30 p.m. CDT, September 4, 2026
NWS Baltimore MD/WashingtonWarningSeptember 3, 2026
Severe Thunderstorm Warning: Albemarle and Nelson, VA
Expired 4:45 p.m. EDT, September 3, 2026
NWS Detroit/PontiacWarningSeptember 3, 2026
Tornado Warning: Monroe, MI
Expired 5:00 p.m. EDT, September 3, 2026
NWS Northern IndianaWarningSeptember 3, 2026
Severe Thunderstorm Warning: Fulton, OH
Expired 4:30 p.m. EDT, September 3, 2026
NWS ClevelandWarningSeptember 3, 2026
Severe Thunderstorm Warning: Lucas and Wood, OH
Expired 5:45 p.m. EDT, September 3, 2026
NWS Grand ForksWarningSeptember 3, 2026
Severe Thunderstorm Warning: Beltrami and Clearwater, MN
Expired 5:00 p.m. CDT, September 3, 2026
NWS Grand ForksWarningSeptember 3, 2026
Severe Thunderstorm Warning: Becker, Beltrami, Clearwater and 5 more, MN
Expired 5:00 p.m. CDT, September 3, 2026
NWS TucsonWarningSeptember 3, 2026
Flash Flood Warning: Cochise, AZ
Expired 7:00 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 6:00 p.m. EDT, September 3, 2026
Source: National Weather Service alerts (api.weather.gov).