Hydrology Education: Flood Products

	If river forecasts suggest that flooding may occur, The National Weather Service will issue various products depending on the threat.

Flood Products Outlook A hydrologic outlook is issued to provide notice of noteworthy rises on area rivers, but when the details are uncertain. River flooding and ice jams may be possible but there is low confidence in the timing, location, or extent. Keep informed. Watch A flood watch is issued to provide notice that flooding is probable, but not yet certain. Many of the ingredients that lead to flooding are likely to occur in and near the indicated area, but there is not yet high confidence in the timing, location, or extent. Prepare now. Warning A flood warning is issued to provide notice that flooding is very likely or already occurring. Confidence is high that flooding will occur within the area and time specified. Flooding may be life-threatening and damaging to property. Take Action! Advisory A flood advisory is issued to provide notice that flooding is very likely or already occurring, but flooding will be generally minor and a nuisance. Risk to life and property is expected to be very low when persons use caution to avoid particularly flood-prone areas. If rainfall is still occurring, a flood advisory may be upgraded to a flood warning. Be aware.

More Information Flood Related Products (NWS)