NPVU - QPF Verification

Check the NPVU Log for latest information & missing data
List of Available Data
A Help Guide to Verification Statistical Scores
Six Panel Comparison Plots are available
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If you would like statistics that are not available through this form please use the off-line request form.

Please click on the map or use the drop down menu to select an RFC or WFO.
NOTE: I had problems with both NWRFC and OHRFC. There statistics are not correct and the problem is being worked on. As soon as they are fixed the statistics will be fixed. This problem may have some impact on the CONUS statistics. This problem starts with the September 2005 stats. OHRFC's stats were fixed by October 2005, but I was unable to fix the September 2005 stats.

If you need help knowing which choice to make with in a given row click on the name of the row to find out more about the available options. If you want help understanding the particular graph you are about to call up click on the "Help Guide" button.

*Day 2 and Day 3 are available only for CNRFC, CBRFC, and NWRFC.
  Prior to 2003, Day 3 is available only in the cold season (October thru March).
**The NPVU converted all referneces of AVN over to GFS starting with the July 2004 statistics and all refereces of Eta over to NAM starting February 2005.

The inherent quality of the verification statistics contains seasonal and geographical variations. Specifically, the scores contain degradation in
(1) northern latitudes during winter due to poor ground truth data when precipitation is frozen, (2) for the three RFC areas west of the Continental Divide (CNRFC, CBRFC, and NWRFC) due to an inconsistency in the scoring, and (3) the three RFC areas just east of the Continental Divide (MBRFC, ABRFC, and WGRFC) because of poor ground truth data in the Rocky Mountain foothills areas. Scoring upgrades for the latter two problems are being addressed.