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Experimental Winter Storm Outlook (WSO)
 
The Winter Storm Outlook is experimental and does not depict official warnings, and should always be used in context with official NWS forecasts and warnings. Because this product is experimental, it may not update in a timely fashion. Always check the creation and valid times. For more information, please refer to the following links:Product/Service Description Document

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Probability of Exceeding 24-Hr Warning Criteria (Snowfall)

More InfoForecasts for a 24-hour period from 12Z to 12Z, and from 12Z to 00Z for the Day 3.5 period. These forecasts may include some edits by forecasters.

Probability of Exceeding 24-Hr Warning Criteria (Freezing Rain)

More InfoForecasts for a 24-hour period from 12Z to 12Z, and from 12Z to 00Z for the Day 3.5 period. These forecasts may include some edits by forecasters.
Map Overlays
CWAs Counties
RFCs FEMA Regions
States NWS Forecast Zones
Urban Areas ARTCC/FIR
More Info NEW - Unedited Forecast from Probabilistic Winter Precipitation Forecast (PWPF) | Maximum Probability of Exceeding NWS 12 HR or 24 HR Winter Storm Warning Criteria for Snow Accumulation during the Valid Time Range
| PWPF Snow
More Info NEW - Unedited Forecast from Probabilistic Winter Precipitation Forecast (PWPF) | Maximum Probability of Exceeding NWS 12 HR or 24 HR Winter Storm Warning Criteria for Ice Accumulation during the Valid Time Range
| PWPF Ice

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