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HPC's Day 4-8 Alaskan 500mb Height Forecasts
The images below represent 500mb height forecasts utilizing the latest operational models and/or GFS ensemble guidance.
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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 HPC'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 HPC's forecasts from days 4-8.
Comparison between the 00Z or 12Z GFS (in red) and HPC'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 HPC's forecast versus the 00Z or 12Z GFS from days 4-8.
Comparison between the 00Z or 12Z GFS Ensemble Mean (in black) and HPC's forecast. The shaded regions represent the spread (in meters) 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 HPC forecast/Ensemble Mean and
Spread for days 4-8.