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
Request to be on the NPVU monthly e-mail list.
Please click on the map or use the drop down menu to select an RFC or WFO.
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.
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.