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HPC Day 3-7 500mb Height Forecasts
 500mb height forecasts now
encompass the entire continental U.S., Southern Canada and Northern Mexico.
The images below represent 500mb height forecasts utilizing the latest operational models and/or GFS
ensemble guidance.
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HPC Forecast
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HPC vs GFS
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HPC vs Ensemble Mean
& Spread
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The following images represent HPC's forecast.
Day 3
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Day 4
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Day 5
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Day 6
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Day 7
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Days 3 to 7
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Loop of HPC's forecasts from days 3-7.
Comparison between the 00Z or 12Z GFS
(in red) and HPC's forecast.
Day 3
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Day 4
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Day 5
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Day 6
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Day 7
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Days 3 to 7
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Loop of HPC's forecast versus the 00Z or 12Z GFS from days 3-7.
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 3
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Day 4
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Day 5
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Day 6
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Day 7
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Days 3 to 7
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Loop of HPC forecast/Ensemble Mean and
Spread for days 3-7.
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