National Weather Service United States Department of Commerce

TYPES OF FLOODING - coastal, dam failures, ice jams, rivers, small streams, and urban.
 

FLOOD WATCH - issued by your local NWS Forecast Office when the potential for flooding exists.


FLASH FLOOD WARNING - issued by your local NWS Forecast Office when flooding will create an immediate threat to life  and/or property. Generally occurring in a time period of less than 6 hours.


FLOOD WARNING - issued by your local NWS Forecast Office when flooding will occur in a time period generally greater than 6 hours.

 


CATEGORIES:


MINOR FLOODING - minimal or no property damage, but possibly some public threat or inconvenience.


MODERATE FLOODING - some inundation of structures and roads near streams/rivers; some evacuations of people and/or transfer of property to higher ground elevations necessary.


MAJOR FLOODING - extensive inundation of structures and roads; significant evacuations of people and/or transfer of property to higher elevations.

 


BE PREPARED:

Local Flood Information Briefing Page

 

Advanced Hydrologic Prediction Service - AHPS

Flash Floods and Floods...the Awesome Power!

Flood Safety Awareness - NOAA

Hurricane Awareness: Inland Flooding

Hurricane Flooding: A Deadly Inland Danger

Ice Jam Reference & Trouble Spots

Local Hydrology Page

Natural Hazard Statistics

Severe Weather 101: Floods - NSSL

 

Local Definitions / Preparedness Page