Flood Warning VS. Watch - National Weather Service
Flash Flood Warning: Take Action! A Flash Flood Warning is issued when a flash flood is imminent or occurring. If you are in a flood prone area move immediately to high ground. A flash flood is a sudden violent flood that can take from minutes to hours to develop.
With this change to impact-based FFWs, the NWS is aiming to improve the public response to Flash Flood Warnings by providing easily readable information and issuing WEA alerts only for flash flood events that require immediate life-saving action.
Flood Related Products - National Weather Service
A Flash Flood Warning is issued to inform the public, emergency management and other cooperating agencies that flash flooding is in progress, imminent, or highly likely. Flash Flood Warnings are urgent messages as dangerous flooding can develop very rapidly, with a serious threat to life and/or property.
NATIONAL WEATHER SERVICE - NWS Alerts
FLS (Areal Flood Advisory or Areal Flood Statement) The alerts web service displays NWS watches, warnings, advisories, and similar products. Click the main menu down-arrow for a quick guide and documentation.
Flash Flooding Definition - National Weather Service
WHAT IS FLASH FLOODING? Flooding that begins within 6 hours, and often within 3 hours, of the heavy rainfall (or other cause). Flash Floods can be caused by a number of things, but is most often due to extremely heavy rainfall from thunderstorms.
Floods - National Weather Service
FLASH FLOOD OR FLOOD WARNING: Flash flooding or flooding has been reported or is imminent take necessary precautions at once. URBAN AND SMALL STREAM ADVISORY: Flooding of small streams, streets, and low-lying areas, such as railroad underpasses and urban storm drains, is occurring.
Flood Safety Tips and Resources - National Weather Service
Here you will find an interactive flood map, information describing the different types of flooding and educational material. You will also learn how the National Weather Service keeps you aware of potentially dangerous flooding situations through alerts and warnings .
WWA Summary for Flash Flood Warning - National Weather Service
Jun 2, 2009 · Between 2 and 4 inches of rain have fallen. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas.
Flash Floods - National Weather Service
Be alert for the possibility of flash flooding anytime that rain fall is forecast. Be especially cautious from July to mid-September when severe thunderstorms can develop rapidly. A flash flood can travel miles beyond the storm that generated it , catching unwary hikers and motorists by surprise.
Severe Weather Awareness - Flood Safety - National Weather …
Flash floods become raging torrents of water, ripping through neighborhoods, streets, valleys, etc. sweeping away whatever is in their path. Flash floods can also occur with a dam or levee failure. Heavy rain should be a signal that alerts you to the possibility of dangerous flood conditions.