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Alaskan Day 4-8 Sea Level Pressure Forecasts
WPC, GFS, and GFS Ensemble Guidance
Note:
These products are currently experimental and may not update regularly.
The images below represent sea level pressure forecasts utilizing the latest operational models and/or
ensemble guidance.
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WPC Forecast
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WPC vs GFS
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WPC vs Ensemble Mean
& Spread
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To view individual forecast days and day 4-8 loops, please click on the appropriate link below.
The following images represent WPC's forecast.
Day 4
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Day 5
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Day 6
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Day 7
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Day 8
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Days 4 to 8
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Loop of WPC's forecasts from days 4-8.
Comparison between the 00Z or 12Z GFS
(in red) and WPC's forecast.
Day 4
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Day 5
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Day 6
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Day 7
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Day 8
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Days 4 to 8
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Loop of WPC's forecast versus the 00Z or 12Z GFS from days 4-8.
Comparison between the 00Z or 12Z GFS Ensemble Mean (in black) and WPC's forecast. The shaded regions represent
the spread (in millibars) of the ensemble forecasts.
Day 4
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Day 5
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Day 6
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Day 7
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Day 8
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Days 4 to 8
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Loop of WPC forecast/Ensemble Mean and
Spread for days 4-8.
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weather.gov 
