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 BinghamtonWarningSeptember 13, 2026
Severe Thunderstorm Warning: Cayuga and Onondaga, NY
Expired 3:45 p.m. EDT, September 13, 2026
NWS FlagstaffWarningSeptember 13, 2026
Severe Thunderstorm Warning: Coconino, AZ
Expired 3:45 p.m. PDT, September 13, 2026
NWS FlagstaffWarningSeptember 13, 2026
Flash Flood Warning: Coconino, AZ
Expired 5:15 p.m. PDT, September 13, 2026
NWS FlagstaffWarningSeptember 13, 2026
Flash Flood Warning: Coconino, AZ
Expired 5:15 p.m. PDT, September 13, 2026
NWS FlagstaffWarningSeptember 13, 2026
Flash Flood Warning: Coconino, AZ
Expired 5:00 p.m. PDT, September 13, 2026
NWS FlagstaffWarningSeptember 13, 2026
Flash Flood Warning: Yavapai, AZ
Expired 4:30 p.m. PDT, September 13, 2026
NWS BuffaloWarningSeptember 13, 2026
Severe Thunderstorm Warning: Erie, Genesee, Niagara and 1 more, NY
Expired 2:15 p.m. EDT, September 13, 2026
NWS FlagstaffWarningSeptember 13, 2026
Severe Thunderstorm Warning: Yavapai, AZ
Expired 1:45 p.m. PDT, September 13, 2026
NWS CheyenneWarningSeptember 13, 2026
Red Flag Warning: Niobrara/Lower Elevations of Converse/Thunder Basin National Grassland, Southwest Carbon County and North Snowy Range Foothills, WY
Expired 8:00 p.m. MDT, September 14, 2026
NWS CheyenneWarningSeptember 13, 2026
Red Flag Warning: Middle North Platte River Basin/Niobrara and Converse High Plains, North Laramie Range and Adjacent High Plains, North Laramie Valley/Shirley Basin and 4 more, WY
Expired 8:00 p.m. MDT, September 14, 2026
NWS FlagstaffWarningSeptember 13, 2026
Flash Flood Warning: Yavapai, AZ
Expired 2:15 p.m. PDT, September 13, 2026
NWS RivertonWarningSeptember 13, 2026
High Wind Warning: Absaroka Mountains, Cody Foothills and Upper Wind River Basin, WY
Expired 2:00 p.m. MDT, September 14, 2026
NWS Boston/NortonWarningSeptember 13, 2026
Flash Flood Warning: Bristol and Plymouth, MA
Expired 2:00 p.m. EDT, September 13, 2026
NWS Boston/NortonWarningSeptember 13, 2026
Flash Flood Warning: Bristol, Bristol, Kent and 3 more, MA and RI
Expired 1:45 p.m. EDT, September 13, 2026
NWS FlagstaffWarningSeptember 13, 2026
Flash Flood Warning: Coconino, AZ
Expired 1:30 p.m. PDT, September 13, 2026
NWS UptonWarningSeptember 13, 2026
Flash Flood Warning: Middlesex and New London, CT
Expired 1:00 p.m. EDT, September 13, 2026
NWS RivertonWarningSeptember 13, 2026
Red Flag Warning: Sweetwater County/Rock Springs BLM/Flaming Gorge NRA, Natrona County/Casper BLM, Upper Wind River Basin/Wind River Basin and 2 more, WY
Expired 8:00 p.m. MDT, September 14, 2026
NWS UptonWarningSeptember 13, 2026
Flood Warning: Bergen, NJ
Expired 4:00 p.m. EDT, September 13, 2026
NWS UptonWarningSeptember 13, 2026
Flash Flood Warning: Fairfield, Middlesex, New Haven and 3 more, CT and NY
Expired 12:00 p.m. EDT, September 13, 2026
NWS RivertonWarningSeptember 13, 2026
Freeze Warning: Star Valley, WY
Expired 9:00 a.m. MDT, September 14, 2026
NWS UptonWarningSeptember 13, 2026
Flash Flood Warning: Fairfield, Middlesex, New Haven and 1 more, CT
Expired 11:30 a.m. EDT, September 13, 2026
NWS UptonWarningSeptember 13, 2026
Flash Flood Warning: Bergen and Rockland, NJ and NY
Expired 11:15 a.m. EDT, September 13, 2026
NWS Mount HollyWarningSeptember 13, 2026
Flash Flood Warning: Mercer, Middlesex, Bucks and 3 more, NJ and PA
Expired 12:00 p.m. EDT, September 13, 2026
NWS UptonWarningSeptember 13, 2026
Flash Flood Warning: Fairfield and Westchester, CT and NY
Expired 10:30 a.m. EDT, September 13, 2026
NWS UptonWarningSeptember 13, 2026
Flash Flood Warning: Fairfield, CT
Expired 10:00 a.m. EDT, September 13, 2026
NWS UptonWarningSeptember 13, 2026
Flash Flood Warning: Bergen, Essex, Hudson and 1 more, NJ
Expired 9:30 a.m. EDT, September 13, 2026
NWS Mount HollyWarningSeptember 13, 2026
Flash Flood Warning: Morris, NJ
Expired 10:00 a.m. EDT, September 13, 2026
NWS WakefieldWarningSeptember 13, 2026
Flash Flood Warning: Worcester, MD
Expired 7:45 a.m. EDT, September 13, 2026
NWS PittsburghWarningSeptember 13, 2026
Flash Flood Warning: Clarion, PA
Expired 5:30 a.m. EDT, September 13, 2026
NWS CharlestonWarningSeptember 13, 2026
Flood Warning: Braxton, Calhoun, Clay and 3 more, WV
Expired 5:30 a.m. EDT, September 13, 2026
NWS WichitaWarningSeptember 13, 2026
Flood Warning: Allen, Neosho, Wilson and 1 more, KS
Expired 8:00 a.m. CDT, September 13, 2026
NWS CharlestonWarningSeptember 13, 2026
Flood Warning: Clay and Kanawha, WV
Expired 5:00 a.m. EDT, September 13, 2026
NWS Great FallsWarningSeptember 12, 2026
High Wind Warning: Madison River Valley, MT
Expired 6:00 p.m. MDT, September 13, 2026
NWS BlacksburgWarningSeptember 12, 2026
Flash Flood Warning: Roanoke, VA
Expired 1:45 a.m. EDT, September 13, 2026
NWS State CollegeWarningSeptember 12, 2026
Flash Flood Warning: Elk, PA
Expired 2:45 a.m. EDT, September 13, 2026
NWS CharlestonWarningSeptember 12, 2026
Flash Flood Warning: Braxton, Calhoun, Clay and 3 more, WV
Expired 2:15 a.m. EDT, September 13, 2026
NWS WilmingtonWarningSeptember 12, 2026
Flood Warning: Pike and Ross, OH
Expired 12:00 a.m. EDT, September 13, 2026
NWS Key WestWarningSeptember 12, 2026
Special Marine Warning: Straits of Florida from Craig Key to west end of Seven Mile Bridge out 20 NM and Straits of Florida from Craig Key to west end of Seven Mile Bridge 20 to 60 NM out
Expired 9:45 p.m. EDT, September 12, 2026
NWS CharlestonWarningSeptember 12, 2026
Flood Warning: Braxton, Lewis and Webster, WV
Expired 2:00 a.m. EDT, September 13, 2026
NWS MiamiWarningSeptember 12, 2026
Special Marine Warning: Waters from Deerfield Beach to Ocean Reef FL from 20 to 60 NM excluding the territorial waters of Bahamas
Expired 9:30 p.m. EDT, September 12, 2026
NWS CharlestonWarningSeptember 12, 2026
Flash Flood Warning: Buchanan, Logan, McDowell and 2 more, VA and WV
Expired 1:00 a.m. EDT, September 13, 2026
NWS WilmingtonWarningSeptember 12, 2026
Flood Warning: Fayette, Highland and Ross, OH
Expired 10:45 p.m. EDT, September 12, 2026
NWS CharlestonWarningSeptember 12, 2026
Flash Flood Warning: Buchanan and McDowell, VA and WV
Expired 12:30 a.m. EDT, September 13, 2026
NWS PittsburghWarningSeptember 12, 2026
Flood Warning: Fayette, Greene, Washington County and 2 more, PA and WV
Expired 11:30 p.m. EDT, September 12, 2026
NWS Key WestWarningSeptember 12, 2026
Special Marine Warning: Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM out and beyond 5 fathoms
Expired 8:45 p.m. EDT, September 12, 2026
NWS Dodge CityWarningSeptember 12, 2026
Severe Thunderstorm Warning: Barber and Pratt, KS
Expired 9:00 p.m. CDT, September 12, 2026
NWS Grand JunctionWarningSeptember 12, 2026
Severe Thunderstorm Warning: Grand and Uintah, UT
Expired 8:30 p.m. MDT, September 12, 2026
NWS PittsburghWarningSeptember 12, 2026
Flood Warning: Armstrong, Indiana County and Jefferson, PA
Expired 11:00 p.m. EDT, September 12, 2026
NWS SpringfieldWarningSeptember 12, 2026
Severe Thunderstorm Warning: Cherokee, KS
Expired 8:45 p.m. CDT, September 12, 2026
NWS CharlestonWarningSeptember 12, 2026
Flash Flood Warning: Buchanan and McDowell, VA and WV
Expired 10:30 p.m. EDT, September 12, 2026
NWS WilmingtonWarningSeptember 12, 2026
Flash Flood Warning: Pike and Ross, OH
Expired 10:30 p.m. EDT, September 12, 2026
NWS AmarilloWarningSeptember 12, 2026
Severe Thunderstorm Warning: Hemphill, Ochiltree and Roberts, TX
Expired 8:15 p.m. CDT, September 12, 2026
NWS CharlestonWarningSeptember 12, 2026
Flood Warning: Calhoun, Doddridge, Gilmer and 4 more, WV
Expired 11:00 p.m. EDT, September 12, 2026
NWS PittsburghWarningSeptember 12, 2026
Flood Warning: Allegheny, Washington County and Westmoreland, PA
Expired 10:00 p.m. EDT, September 12, 2026
NWS Key WestWarningSeptember 12, 2026
Special Marine Warning: Straits of Florida from west end of Seven Mile Bridge to south of Halfmoon Shoal out 20 NM and Straits of Florida from west end of Seven Mile Bridge to south of Halfmoon Shoal
Expired 7:30 p.m. EDT, September 12, 2026
NWS SpringfieldWarningSeptember 12, 2026
Severe Thunderstorm Warning: Bourbon and Crawford, KS
Expired 7:45 p.m. CDT, September 12, 2026
NWS PittsburghWarningSeptember 12, 2026
Flood Warning: Allegheny and Washington County, PA
Expired 9:45 p.m. EDT, September 12, 2026
NWS PittsburghWarningSeptember 12, 2026
Flash Flood Warning: Fayette, Greene, Washington County and 1 more, PA and WV
Expired 9:15 p.m. EDT, September 12, 2026
NWS FlagstaffWarningSeptember 12, 2026
Flash Flood Warning: Gila and Navajo, AZ
Expired 9:15 p.m. PDT, September 12, 2026
NWS Dodge CityWarningSeptember 12, 2026
Severe Thunderstorm Warning: Clark and Comanche, KS
Expired 7:00 p.m. CDT, September 12, 2026
Source: National Weather Service alerts (api.weather.gov).