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 New OrleansWarningSeptember 7, 2026
Severe Thunderstorm Warning: St. Tammany and Tangipahoa, LA
Expired 3:00 p.m. CDT, September 7, 2026
NWS MelbourneWarningSeptember 7, 2026
Special Marine Warning: Sebastian Inlet to Jupiter Inlet 0-20 nm
Expired 4:00 p.m. EDT, September 7, 2026
NWS MelbourneWarningSeptember 7, 2026
Special Marine Warning: Volusia-Brevard County Line to Sebastian Inlet 0-20 nm and Sebastian Inlet to Jupiter Inlet 0-20 nm
Expired 2:30 p.m. EDT, September 7, 2026
NWS New OrleansWarningSeptember 7, 2026
Special Marine Warning: Terrebonne Bay and Coastal Waters from Port Fourchon LA to Lower Atchafalaya River LA out 20 nm
Expired 2:00 p.m. CDT, September 7, 2026
NWS San JuanWarningSeptember 7, 2026
Flash Flood Warning: Vega Baja, PR
Expired 4:15 p.m. EDT, September 7, 2026
NWS GlasgowWarningSeptember 7, 2026
Severe Thunderstorm Warning: Garfield and Petroleum, MT
Expired 1:30 p.m. MDT, September 7, 2026
NWS New OrleansWarningSeptember 7, 2026
Special Marine Warning: Chandeleur Sound and Coastal waters from Pascagoula Mississippi to Stake Island out 20 NM
Expired 1:00 p.m. CDT, September 7, 2026
NWS HonoluluWarningSeptember 7, 2026
Flash Flood Warning: Kauai, HI
Expired 2:00 p.m. HST, September 7, 2026
NWS San DiegoWarningSeptember 7, 2026
Extreme Heat Warning: Coachella Valley, San Diego County Deserts and San Gorgonio Pass Near Banning, CA
Expired 8:00 p.m. PDT, September 11, 2026
NWS Tampa Bay RuskinWarningSeptember 7, 2026
Special Marine Warning: Tampa Bay waters
Expired 11:15 a.m. EDT, September 7, 2026
NWS HonoluluWarningSeptember 7, 2026
Flash Flood Warning: Kauai, HI
Expired 1:15 p.m. HST, September 7, 2026
NWS New OrleansWarningSeptember 7, 2026
Special Marine Warning: Breton Sound, Chandeleur Sound and Coastal Waters from Boothville LA to Southwest Pass of the Mississippi River out 20 nm
Expired 11:15 a.m. CDT, September 7, 2026
NWS MobileWarningSeptember 7, 2026
Special Marine Warning: South Mobile Bay and Mississippi Sound
Expired 9:45 a.m. CDT, September 7, 2026
NWS MobileWarningSeptember 7, 2026
Special Marine Warning: Coastal waters from Pensacola FL to Pascagoula MS out 20 NM and Waters from Pensacola FL to Pascagoula MS from 20 to 60 NM
Expired 10:30 a.m. CDT, September 7, 2026
NWS PhoenixWarningSeptember 7, 2026
Extreme Heat Warning: Imperial County Southwest, CA
Expired 8:00 p.m. PDT, September 11, 2026
NWS HonoluluWarningSeptember 7, 2026
Tropical Storm Warning: Waianae Mountains, HI
Expired 4:00 p.m. HST, September 7, 2026
NWS HonoluluWarningSeptember 7, 2026
Tropical Storm Warning: Central Oahu, HI
Expired 4:00 p.m. HST, September 7, 2026
NWS HonoluluWarningSeptember 7, 2026
Tropical Storm Warning: Olomana, HI
Expired 4:00 p.m. HST, September 7, 2026
NWS HonoluluWarningSeptember 7, 2026
Tropical Storm Warning: Koolau Leeward, HI
Expired 4:00 p.m. HST, September 7, 2026
NWS HonoluluWarningSeptember 7, 2026
Tropical Storm Warning: Koolau Windward, HI
Expired 4:00 p.m. HST, September 7, 2026
NWS HonoluluWarningSeptember 7, 2026
Tropical Storm Warning: Oahu North Shore, HI
Expired 4:00 p.m. HST, September 7, 2026
NWS HonoluluWarningSeptember 7, 2026
Tropical Storm Warning: Waianae Coast, HI
Expired 4:00 p.m. HST, September 7, 2026
NWS HonoluluWarningSeptember 7, 2026
Tropical Storm Warning: Ewa Plain, HI
Expired 4:00 p.m. HST, September 7, 2026
NWS HonoluluWarningSeptember 7, 2026
Tropical Storm Warning: Honolulu Metro, HI
Expired 4:00 p.m. HST, September 7, 2026
NWS HonoluluWarningSeptember 7, 2026
Tropical Storm Warning: East Honolulu, HI
Expired 4:00 p.m. HST, September 7, 2026
NWS New OrleansWarningSeptember 7, 2026
Special Marine Warning: Coastal Waters from Boothville LA to Southwest Pass of the Mississippi River out 20 nm, Coastal waters from Pascagoula Mississippi to Stake Island out 20 NM and Coastal waters
Expired 8:45 a.m. CDT, September 7, 2026
NWS MobileWarningSeptember 7, 2026
Special Marine Warning: Waters from Pensacola FL to Pascagoula MS from 20 to 60 NM and Waters from Okaloosa-Walton County Line to Pensacola FL from 20 to 60 NM
Expired 9:00 a.m. CDT, September 7, 2026
NWS MobileWarningSeptember 7, 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 7:45 a.m. CDT, September 7, 2026
NWS New OrleansWarningSeptember 7, 2026
Special Marine Warning: Coastal waters from the Southwest Pass of the Mississippi River to Port Fourchon Louisiana out 20 NM and Coastal Waters from Boothville LA to Southwest Pass of the Mississippi
Expired 7:30 a.m. CDT, September 7, 2026
NWS Greenville-SpartanburgWarningSeptember 7, 2026
Flash Flood Warning: McDowell and Rutherford, NC
Expired 9:15 a.m. EDT, September 7, 2026
NWS TallahasseeWarningSeptember 7, 2026
Special Marine Warning: Waters from Okaloosa-Walton County Line to Mexico Beach from 20 to 60 NM and Waters from Mexico Beach to Apalachicola FL from 20 to 60 NM
Expired 6:30 a.m. CDT, September 7, 2026
NWS HonoluluWarningSeptember 7, 2026
Tropical Storm Warning: Oahu Windward Waters and Oahu Leeward Waters
Expired 6:15 p.m. HST, September 7, 2026
NWS MobileWarningSeptember 7, 2026
Special Marine Warning: Waters from Okaloosa-Walton County Line to Pensacola FL from 20 to 60 NM
Expired 6:15 a.m. CDT, September 7, 2026
NWS TallahasseeWarningSeptember 7, 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, Waters from Okaloosa-Walton County Line t
Expired 5:15 a.m. CDT, September 7, 2026
NWS BillingsWarningSeptember 7, 2026
Severe Thunderstorm Warning: Musselshell, MT
Expired 4:00 a.m. MDT, September 7, 2026
NWS Sioux FallsWarningSeptember 7, 2026
Flash Flood Warning: Plymouth and Woodbury, IA
Expired 6:00 a.m. CDT, September 7, 2026
NWS TallahasseeWarningSeptember 7, 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, Waters from Okaloosa-Walton County Line t
Expired 3:45 a.m. CDT, September 7, 2026
NWS San JuanWarningSeptember 7, 2026
Extreme Heat Warning: San Juan and Vicinity, Northeast, Southeast and 8 more, PR
Expired 5:00 p.m. EDT, September 7, 2026
NWS TallahasseeWarningSeptember 7, 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, Waters from Okaloosa-Walton County Line t
Expired 3:00 a.m. CDT, September 7, 2026
NWS Rapid CityWarningSeptember 7, 2026
Severe Thunderstorm Warning: Custer, Meade and Pennington, SD
Expired 2:00 a.m. MDT, September 7, 2026
NWS GlasgowWarningSeptember 7, 2026
Severe Thunderstorm Warning: Phillips and Valley, MT
Expired 2:00 a.m. MDT, September 7, 2026
NWS TallahasseeWarningSeptember 7, 2026
Special Marine Warning: Coastal Waters from Mexico Beach to Apalachicola out 20 NM and Coastal Waters From Ochlockonee River to Apalachicola FL out to 20 Nm
Expired 3:00 a.m. EDT, September 7, 2026
NWS RivertonWarningSeptember 7, 2026
Red Flag Warning: North Bighorn Basin/Worland BLM and South Bighorn Basin/Worland BLM, MT and WY
Expired 7:00 p.m. MDT, September 7, 2026
NWS PhoenixWarningSeptember 7, 2026
Extreme Heat Warning: Imperial County West and Imperial Valley, CA
Expired 8:00 p.m. PDT, September 11, 2026
NWS PhoenixWarningSeptember 7, 2026
Extreme Heat Warning: Parker Valley, Central La Paz, Palo Verde Valley and 1 more, AZ and CA
Expired 8:00 p.m. PDT, September 11, 2026
NWS PhoenixWarningSeptember 7, 2026
Extreme Heat Warning: Northwest Valley, Buckeye/Avondale, Cave Creek/New River and 8 more, AZ
Expired 8:00 p.m. PDT, September 10, 2026
NWS PhoenixWarningSeptember 7, 2026
Extreme Heat Warning: Yuma, AZ
Expired 8:00 p.m. PDT, September 10, 2026
NWS PhoenixWarningSeptember 7, 2026
Extreme Heat Warning: Kofa, Southeast Yuma County, Gila River Valley and 3 more, AZ
Expired 8:00 p.m. PDT, September 10, 2026
NWS JacksonvilleWarningSeptember 7, 2026
Flood Warning: Suwannee, FL
Expired 2:00 a.m. EDT, September 7, 2026
NWS GlasgowWarningSeptember 7, 2026
Severe Thunderstorm Warning: Phillips, MT
Expired 1:00 a.m. MDT, September 7, 2026
NWS TallahasseeWarningSeptember 7, 2026
Special Marine Warning: Apalachee Bay or Coastal Waters From Keaton Beach to Ochlockonee River Fl out to 20 Nm and Coastal waters from Suwannee River to Keaton Beach out 20 NM
Expired 3:00 a.m. EDT, September 7, 2026
NWS TallahasseeWarningSeptember 6, 2026
Severe Thunderstorm Warning: Jefferson, Madison and Taylor, FL
Expired 1:30 a.m. EDT, September 7, 2026
NWS TallahasseeWarningSeptember 6, 2026
Severe Thunderstorm Warning: Gadsden and Leon, FL
Expired 12:30 a.m. EDT, September 7, 2026
NWS CharlestonWarningSeptember 6, 2026
Special Marine Warning: Coastal waters from Savannah GA to Altamaha Sound GA out 20 nm, including Grays Reef National Marine Sanctuary and Waters from Savannah GA to Altamaha Sound GA extending from 2
Expired 1:15 a.m. EDT, September 7, 2026
NWS JacksonvilleWarningSeptember 6, 2026
Flash Flood Warning: Suwannee, FL
Expired 2:15 a.m. EDT, September 7, 2026
NWS HonoluluWarningSeptember 6, 2026
Hurricane Warning: Kauai Northwest Waters and Kauai Leeward Waters
Expired 12:15 p.m. HST, September 7, 2026
NWS HonoluluWarningSeptember 6, 2026
Hurricane Warning: Kauai Mountains, HI
Expired 7:15 a.m. HST, September 7, 2026
NWS HonoluluWarningSeptember 6, 2026
Hurricane Warning: Kauai Southwest, HI
Expired 7:15 a.m. HST, September 7, 2026
NWS HonoluluWarningSeptember 6, 2026
Hurricane Warning: Kauai South, HI
Expired 7:15 a.m. HST, September 7, 2026
NWS HonoluluWarningSeptember 6, 2026
Hurricane Warning: Kauai East, HI
Expired 7:15 a.m. HST, September 7, 2026
Source: National Weather Service alerts (api.weather.gov).