HPC 06 hr QPF Verification

• Point verification system

• uniformly distributed (almost) 600+ METAR obs over CONUS

  • Obs QC’d by HPC forecasters-have opportunity to modify obs or disignate as missing by comparing reports with EMC Stage IV multi-sensor precipitation estimates.

• Concentrate on 0.25 inches and above - problems with ASOS precip. Reports

• Convert all QPFs to points via bilinear interpolation

• Compute scores.

TS

FAR

FAR=#False alarms/total #number forecasts

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