Probability Maps:       Snow        Freezing Rain        Composite

Other Products:         Surface Low Tracks        Forecast Discussion

   Winter Weather Impact Graphics   Winter Weather Verification

 

All viewing options are available through the links below.

 

≥ 1 inch Day 1 ≥ 1 inch Day 2 ≥ 1 inch Day 3

Specific accumulation thresholds for Days 1-3:		All accumulation thresholds for:
≥ 1 inch	≥ 8 inches	Day 1
≥ 2 inches	≥ 12 inches	Day 2
≥ 4 inches	≥ 18 inches	Day 3
≥ 6 inches

 

 

Day 1	Day 2	Day 3
≥ 4 inches	≥ 4 inches	≥ 4 inches
≥ 8 inches	≥ 8 inches	≥ 8 inches
≥ 12 inches	≥ 12 inches	≥ 12 inches

 

24-, 48-, and 72-Hour Snowfall Percentile Accumulation Forecasts for Days 1-3

 

Specific (deterministic) snow accumulations for locations in the United States can be obtained from the National Weather Service's National Digital Forecast Database.

NCEP monitoring of ongoing or imminent (up to six hours in the future) Hazardous Winter Weather can be found at SPC Mesoscale Discussion Link.

 

 

All viewing options are available through the links below.

 

≥ 0.01 inch Day 1 ≥ 0.01 inch Day 2 ≥ 0.01 inch Day 3

Specific accumulation thresholds for Days 1-3:	All accumulation thresholds for:
≥ 0.01 inch	Day 1
≥ 0.10 inch	Day 2
≥ 0.25 inch	Day 3
≥ 0.50 inch

 

 

The charts below depict the probability of freezing rain reaching or exceeding 0.25 inch for Days 1-3.

≥ 0.25 inch Day 1

≥ 0.25 inch Day 2

≥ 0.25 inch Day 3

Day 1

Day 2

Day 3

Current Surface Low Positions

Forecast Surface Low Positions (with uncertainty circles)

Forecast Surface Low Positions (with ensemble clusters)

• Probability of Near-Surface Temperatures at or Below 32^o Degrees
• Wind Chill Chart
• NWS's Winter Weather Safety and Awareness home page
• Significant Winter Weather Events 2010-2015
• NOHRSC Observed Snowfall Analysis
• Recent Snowfall and SnowDepth Maps from the National Centers for Environmental Information
• Winter Weather Terms

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