Flash Flood Prediction Program

-	A gust front has moved into the District from the north, bringing with it increasing low level moisture with dewpoints rising into the low/mid 40s across portions of the District.
-	Isolated thunderstorms will remain possible through the evening. Although most storms should be on the weaker side, upper level steering flow is weak so moderate to brief heavy rainfall cannot be ruled out if a stronger storm manages to develop.
-	The best chance of storms will be through the early evening hours before drying out later this evening.

STORM RAINFALL POTENTIAL AND DURATION: Typical weak thunderstorms will produce rainfall of TR-0.2" in 10-30 minutes. Stronger thunderstorms will be capable of producing rainfall of 0.2-0.6" in 10-30 minutes.

WORST CASE SCENARIO: A storm stalls over an area, resulting in heavy rainfall of up to 1.0" in 45-60 minutes.

A LOOK AHEAD: Moisture will increase across the District on Saturday and Sunday, resulting in better chances for thunderstorms with heavy rainfall possible.

Location	Prime Time	30-Minute Rainfall and % Probability	Message Potential
Plains
Adams	Current TO 1000 PM FRI	Trace (95%) to 0.2" (50%) to 0.6" (15%)	LOW
Arapahoe	Current TO 1000 PM FRI	Trace (95%) to 0.2" (50%) to 0.6" (15%)	LOW
Boulder	Current TO 1000 PM FRI	Trace (95%) to 0.2" (50%) to 0.6" (10%)	LOW
Broomfield	Current TO 1000 PM FRI	Trace (95%) to 0.2" (50%) to 0.6" (10%)	LOW
Denver	Current TO 1000 PM FRI	Trace (95%) to 0.2" (50%) to 0.6" (10%)	LOW
Douglas	Current TO 1000 PM FRI	Trace (95%) to 0.2" (50%) to 0.6" (15%)	LOW
Jefferson	Current TO 1000 PM FRI	Trace (95%) to 0.2" (50%) to 0.6" (15%)	LOW
Foothills above 6500ft
Boulder	Current TO 1000 PM FRI	Trace (95%) to 0.2" (50%) to 0.6" (15%)	LOW
Douglas	Current TO 1000 PM FRI	Trace (95%) to 0.2" (50%) to 0.6" (15%)	LOW
Jefferson	Current TO 1000 PM FRI	Trace (95%) to 0.2" (50%) to 0.6" (15%)	LOW

MONITOR NATIONAL WEATHER SERVICE FOR SEVERE WEATHER STATEMENTS.