About the Quantitative Precipitation Forecasts



About 24 Hour QPF     About 6 Hourly QPF


 6 Hourly QPF Issuance Times

Product Time
92e, 93e, 9ee, & 9fe 
(VT 12-18Z, 18-00Z, 00-06Z, 06-12Z)
1015Z
9ge, 9he, 9ie, & 9je
(VT same as above but for Day 2)
1015Z
9ke, 9le, 9oe, & 9ne
(VT same as above but for Day 3)
1015Z
92e, 93e, 9ee, & 9fe 
(VT 00-06Z, 06-12Z, 12-18Z, 18-00Z)
2215Z
9ge, 9he, 9ie, & 9je
(VT same as above but for Day 2)
2215Z
9ke, 9le, 9oe, & 9ne
(VT same as above but for Day 3)
2215Z


About The 6 Hourly QPF Products

These forecasts depict isohyets of accumulated precipitation of 0.01, 0.25, 0.50, and 1 inch expected in each six hour period. The Senior Branch Forecaster generates the six-hourly forecast for Day 1. The QPF forecaster, known as the Day 2/3 six-hourly forecaster, generates the Day 2 and Day 3 six hourly products during 2 shifts per day (~ 9am-5pm/9pm-5am EST), issuing QPFs for eight consecutive six-hourly periods ending on synoptic hours.