Notes for global model precipitation forecast evaluation:

For T12Z initial forecast
GFS ---> NCEP global forecast system (1X1 degree)
PRX ---> NCEP GFS parallel system (1X1 degree)
24 hours gage observation reports: 7000-8000
Total verified boxs: 1100 at 80X80 km over Northern American

Please refer to this page for calcula tions

24 hours accumulated precipitation (mm)
DATE|FCST	00-24 hrs	24-48 hrs	48-72 hrs
Current	Yes	Yes	Yes

Precipitation forecasts (time series)
Time|THRESHOLD	0.2 mm/24h	2.0 mm/24h	5.0 mm/24h	10. mm/24h	15. mm/24h	25. mm/24h
00-24 hrs	Yes	Yes	Yes	Yes	Yes	Yes
24-48 hrs	Yes	Yes	Yes	Yes	Yes	Yes
48-72 hrs	Yes	Yes	Yes	Yes	Yes	Yes

Click here to go to gif files directory for more maps.

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