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SPIA Index levels with NWS Total Ice Forecast - Northwest

Maps display the current forecast data available for the Northwestern states of Washington, Oregon and Idaho. Partial states include western Montana and western Wyoming. Maximum forecast period is for 24 hours. Forecasted images only. Does not include observed ice.

SPIA Ice Damage Index with NWS Total Ice Forecast
Forecast SPIA Index Levels and 6-Hour NWS Ice Forecast
6-Hour NWS Ice and Wind Forecasts

Click to view SPIA Index Detailed