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Hydrometeorological Prediction Center
Camp Springs, MD
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QPF's:
24-Hourly
6-Hourly
Days 4-5
5-Day Total
Medium Range:
Min Temps
Max Temps
Prob of Pcpn (PoP)
HPC Grids
Sea-level Pressure
Quantitative Precipitation Forecasts
How Threat Scores and Bias are Computed
24-Hourly QPF's
Annual HPC Day-1 / Update / Day-2 Threat Scores
and Observed Areal Coverage;
Annual HPC Day-1 / Day-2 Bias
Annual HPC -vs- NWP Guidance Threat Scores
1993-2008
Monthly HPC -vs- NWP Guidance Threat Scores and Bias
March 2008 to March 2009
Monthly HPC Threat Score and Bias Comparisons (.50", 1.00", 2.00")
March 2008 to March 2009
Monthly HPC Threat Score and Bias Comparisons (Day 1 / Day 2 / Day 3)
March 2008 to March 2009
6-Hourly QPF's
Monthly HPC -vs- NWP Guidance Threat Scores
Update
March 2008 to March 2009
Monthly HPC -vs- NWP Guidance Threat Scores
Day 1
March 2008 to March 2009
Monthly HPC -vs- NWP Guidance Threat Scores
Day 2
March 2008 to March 2009
Monthly HPC -vs- NWP Guidance Threat Scores
Day 3
March 2008 to March 2009
Days 4-5 QPF's
Monthly HPC -vs- NWP Guidance Threat Scores and Bias
March 2008 to March 2009
Monthly HPC Threat Score and Bias Comparisons
.50", 1.00", 2.00"
March 2008 to March 2009
5-Day Total QPF's
Monthly HPC -vs- NWP Guidance Threat Scores and Bias
March 2008 to March 2009
Monthly HPC Threat Score and Bias Comparisons
.50", 1.00", 2.00", 3.00", 4.00"
March 2008 to March 2009
Medium-Range Forecasts
Overview of data plotted on annual charts
Minimum Temperatures
Annual Mean Absolute Error (MAE) Charts (1972 - 2008)
Monthly Performance Charts (March 2008 - March 2009)
Maximum Temperatures
Annual Mean Absolute Error (MAE) Charts (1972 - 2008)
Monthly Performance Charts (March 2008 - March 2009)
Probability of Precipitation (PoP)
Monthly Performance Charts (March 2008 - March 2009)
Monthly Performance Charts - 12-Hour PoP (June 2007 - June 2008)
HPC Gridded Medium-Range Forecasts
How grids are verified
Monthly Performance Charts (July 2006)
Mean Sea Level Pressure (PMSL)
HPC -vs- Guidance Anomaly Correlations
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Last Updated April 9, 2009
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