National Weather Service United States Department of Commerce

ABRFC Forecast Precipitation


Quantitative Precipitation Forecasts (QPF) are predictions of precipitation amounts over an area. The ABRFC normally creates QPF forecasts for the Arkansas-Red Basin three times per day (00z, 12z, and 18z). The ABRFC also creates an additional QPF forecast at 06Z, when staffed overnight for flooding or heavy rainfall. Depending on the season, six-hour increments for the next 18 or 30 hour period are used as an input into the ABRFC hydrologic model. ABRFC uses 18 hours of QPF during the warm season (March 15 - October 14) and 30 hours of QPF during the cool season (October 15 - March 14).

6-hour Periods


First 6-Hour Period

Second 6-Hour Period

Third 6-Hour Period

Fourth 6-Hour Period

Fifth 6-Hour Period



Accumulated Totals


18-hour Total

24-hour Total

30-hour Total