UNITED STATES MONITORING

Flood Warnings

A live map and list of every active flood and flash-flood warning across the United States, from the National Weather Service.

6 active itemsUpdated Sep 26, 2026, 10:47 PM UTCSources: NWS
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Current flooding

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Event statusHighElevatedAdvisory
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#Hazard / eventSeverityLocationSourceUpdated
1Flood WatchFlood Watch issued September 26 at 1:17PM MST until September 29 at 11:00PM MST by NWS Tucson AZHighWestern Pima County Including Ajo/Organ Pipe Cactus National Monument; Tohono O'odham Nation including Sells; Upper Santa Cruz River and Altar Valleys including Nogales; Tucson Metro Area including Tucson/Green Valley/Marana/Vail; South Central Pinal County including Eloy/Picacho Peak State Park; Southeast Pinal County including Kearny/Mammoth/Oracle; Upper San Pedro River Valley including Sierra Vista/Benson; Eastern Cochise County Below 5000 Feet including Douglas/Willcox; Upper Gila River and Aravaipa Valleys including Clifton/Safford; White Mountains of Graham and Greenlee Counties including Hannagan Meadow; Galiuro and Pinaleno Mountains including Mount Graham; Chiricahua Mountains including Chiricahua National Monument; Dragoon/Mule/Huachuca and Santa Rita Mountains including Bisbee/Canelo Hills/Madera Canyon; Santa Catalina and Rincon Mountains including Mount Lemmon/Summerhaven; Baboquivari Mountains including Kitt PeakNWS2Flood WatchFlood Watch issued September 26 at 12:10PM PDT until September 29 at 11:00PM PDT by NWS Las Vegas NVHighNorthwest Plateau; Hualapai Mountains; Northwest DesertsNWS3Flood WatchFlood Watch issued September 26 at 12:01PM MST until September 29 at 11:00PM MST by NWS Flagstaff AZHighKaibab Plateau; Marble and Glen Canyons; Grand Canyon Country; Coconino Plateau; Yavapai County Mountains; Northeast Plateaus and Mesas Hwy 264 Northward; Chinle Valley; Chuska Mountains and Defiance Plateau; Little Colorado River Valley in Coconino County; Little Colorado River Valley in Navajo County; Little Colorado River Valley in Apache County; Western Mogollon Rim; Eastern Mogollon Rim; White Mountains; Northern Gila County; Yavapai County Valleys and Basins; Oak Creek and Sycamore Canyons; Black Mesa Area; Northeast Plateaus and Mesas South of Hwy 264NWS4Coastal Flood WarningCoastal Flood Warning issued September 26 at 2:50PM EDT until September 27 at 6:00PM EDT by NWS Baltimore MD/Washington DCHighSt. MarysNWS5Flood WatchFlood Watch issued September 26 at 12:18PM EDT until September 29 at 2:00AM EDT by NWS Boston/Norton MAHighNorthern Worcester; Central Middlesex County; Western Essex; Eastern Essex; Southern Worcester; Western Norfolk; Southeast Middlesex; Suffolk; Eastern Norfolk; Northern Bristol; Western Plymouth; Eastern Plymouth; Southern Bristol; Southern Plymouth; Barnstable; Dukes; Nantucket; Northwest Middlesex County; Northwest Providence; Southeast Providence; Western Kent; Eastern Kent; Bristol; Washington; Newport; Block IslandNWS6Coastal Flood WatchCoastal Flood Watch issued September 26 at 2:50PM EDT until September 27 at 11:00PM EDT by NWS Baltimore MD/Washington DCElevatedAnne ArundelNWS
FloodingHigh

Flood Watch issued September 26 at 1:17PM MST until September 29 at 11:00PM MST by NWS Tucson AZ

Western Pima County Including Ajo/Organ Pipe Cactus National Monument; Tohono O'odham Nation including Sells; Upper Santa Cruz River and Altar Valleys including Nogales; Tucson Metro Area including Tucson/Green Valley/Marana/Vail; South Central Pinal County including Eloy/Picacho Peak State Park; Southeast Pinal County including Kearny/Mammoth/Oracle; Upper San Pedro River Valley including Sierra Vista/Benson; Eastern Cochise County Below 5000 Feet including Douglas/Willcox; Upper Gila River and Aravaipa Valleys including Clifton/Safford; White Mountains of Graham and Greenlee Counties including Hannagan Meadow; Galiuro and Pinaleno Mountains including Mount Graham; Chiricahua Mountains including Chiricahua National Monument; Dragoon/Mule/Huachuca and Santa Rita Mountains including Bisbee/Canelo Hills/Madera Canyon; Santa Catalina and Rincon Mountains including Mount Lemmon/Summerhaven; Baboquivari Mountains including Kitt Peak

NWS
FloodingHigh

Flood Watch issued September 26 at 12:10PM PDT until September 29 at 11:00PM PDT by NWS Las Vegas NV

Northwest Plateau; Hualapai Mountains; Northwest Deserts

NWS
FloodingHigh

Flood Watch issued September 26 at 12:01PM MST until September 29 at 11:00PM MST by NWS Flagstaff AZ

Kaibab Plateau; Marble and Glen Canyons; Grand Canyon Country; Coconino Plateau; Yavapai County Mountains; Northeast Plateaus and Mesas Hwy 264 Northward; Chinle Valley; Chuska Mountains and Defiance Plateau; Little Colorado River Valley in Coconino County; Little Colorado River Valley in Navajo County; Little Colorado River Valley in Apache County; Western Mogollon Rim; Eastern Mogollon Rim; White Mountains; Northern Gila County; Yavapai County Valleys and Basins; Oak Creek and Sycamore Canyons; Black Mesa Area; Northeast Plateaus and Mesas South of Hwy 264

NWS
FloodingHigh

Coastal Flood Warning issued September 26 at 2:50PM EDT until September 27 at 6:00PM EDT by NWS Baltimore MD/Washington DC

St. Marys

NWS
FloodingHigh

Flood Watch issued September 26 at 12:18PM EDT until September 29 at 2:00AM EDT by NWS Boston/Norton MA

Northern Worcester; Central Middlesex County; Western Essex; Eastern Essex; Southern Worcester; Western Norfolk; Southeast Middlesex; Suffolk; Eastern Norfolk; Northern Bristol; Western Plymouth; Eastern Plymouth; Southern Bristol; Southern Plymouth; Barnstable; Dukes; Nantucket; Northwest Middlesex County; Northwest Providence; Southeast Providence; Western Kent; Eastern Kent; Bristol; Washington; Newport; Block Island

NWS
FloodingElevated

Coastal Flood Watch issued September 26 at 2:50PM EDT until September 27 at 11:00PM EDT by NWS Baltimore MD/Washington DC

Anne Arundel

NWS
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5High
1Elevated
0Advisory
Source: NWS
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HighElevatedAdvisory
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Flooding by state

Every state we monitor for flooding. Each page carries the live list, a map, and local context.