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HPC Forecasts in GIS Format:
The following charts depict the probability of snowfall reaching or exceeding 4, 8 and 12 inches.
Click on a thumbnail to enlarge.
Specific (deterministic) snow accumulations
for locations in the United States can be obtained from the National Weather Service's
National Digital Forecast Database
.
Freezing Rain Probability Forecasts
The following charts depict the probability of freezing rain reaching or exceeding .25 inch.
Click on a thumbnail to enlarge.
Composite Charts
The following charts depict in a 4-panel format the probabilities of snow reaching or exceeding 4, 8, and 12
inches and the probability of freezing rain reaching or exceeding .25 inch. Click on a thumbnail to enlarge.
Day 1-3 Surface Low Tracks
The low track charts depict HPC's Day 1-3 forecast of surface low tracks associated with significant
winter weather. Click on the thumbnail to enlarge.
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