The modeled shallow landslide hazard map shown below is based on antecedent rainfall, 24-hour, and 48-hour predicted rainfall.
Click on a zone within a county for more information about the general landslide hazard forecasted for that area.
This landslide hazard information is produced in a partnership between the Washington State Department of Natural Resources—Washington Geological Survey and NOAA—National Weather Service.
IMPORTANT NOTE: This Website is a beta version and is under construction. Timely delivery of data and products from this server through the Internet is not guaranteed. The data on this site cannot be used to predict definitely that landslides will or will not occur; it is intended to show the relative hazard of occurrence. For example, landslides may occur in regions under an 'advisory' and may not occur in all or any regions under a 'warning'.
This site provides daily forecasts for precipitation-induced shallow landslides in Washington State. These are calculated using a model based on antecedent and predicted rainfall. Forecasts are graphically portrayed for counties, subdivided into National Weather Service forecast zones. The model is intended for use as a shallow landslide forecasting tool for use by city and county emergency managers.
The map is not predictive, nor does it forecast the potential for deep-seated landslides. If a landslide occurs, evacuate the area and contact your local emergency management agency.
Current Landslide Hazard
Official National Weather Service (NWS) dissemination systems that can provide timely delivery of data and products:
For information on this webpage:
Stephen L. Slaughter, L.G., L.E.G.
Landslide Hazards Program Coordinator
Washington State Department of