SPIA Index levels with NWS Total Ice Forecast - North Rockies

Maps display the current forecast data for the Northern Rockies states of Idaho, Montana and Wyoming. Partial states include Eastern Washington, Eastern Oregon, Northern Nevada, Northern Utah, Western North Dakota, Western South Dakota, and Western Nebraska.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

NR SPIA Ice NR Total Ice
NR SPIA Ice NR Total Ice
NR SPIA Ice NR Total Ice
NR SPIA Ice NR Total Ice

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NWS 6-Hour Ice and Wind Forecasts



6-Hour Ice Accumulation Forecast
Forecast Wind Speed: Wind Symbol Definition
NR Total Ice NR Wind Speed
NR Total Ice NR Wind Speed
NR Total Ice NR Wind Speed
NR Total Ice NR Wind Speed

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