Flash Flood Prediction Program

-	Message 1's will continue valid for the entire District until 9pm.
-	Multiple rounds of showers and weak to moderate thunderstorms have moved through the District today with the stronger storms remaining to the S of the District over El Paso County.
-	Now that daytime heating has peaked the threat for strong thunderstorms will slowly diminish into the evening, but a strong thunderstorm remains possible and will still be capable of producing brief heavy rain. Additional Isolated to widely scattered rain showers and weak to moderate thunderstorms will be the most likely trend into the evening.

STORM RAINFALL POTENTIAL AND DURATION: Rain showers and weak thunderstorms will produce a trace to 0.2" in 10-30 minutes. Moderate to strong thunderstorms will have the potential to produce 0.2-0.7" in 10-30 minutes.

WORST CASE SCENARIO: Training of moderate thunderstorm cells or a briefly stationary strong thunderstorm may produce up to 1.5" of rain in 45-75 minutes.

County	Message	Valid Times	Prime Time
Boulder County	1	Current TO 900 PM	Current TO 800 PM
Jefferson County	1	Current TO 900 PM	Current TO 800 PM
Broomfield County	1	Current TO 900 PM	Current TO 800 PM
Douglas County	1	Current TO 900 PM	Current TO 800 PM
Adams County	1	Current TO 900 PM	Current TO 800 PM
Denver County	1	Current TO 900 PM	Current TO 800 PM
DIA	1	Current TO 900 PM	Current TO 800 PM
Arapahoe County	1	Current TO 900 PM	Current TO 800 PM
the City of Aurora	1	Current TO 900 PM	Current TO 800 PM
Arvada	1	Current TO 900 PM	Current TO 800 PM
Wheat Ridge	1	Current TO 900 PM	Current TO 800 PM
Lakewood	1	Current TO 900 PM	Current TO 800 PM

County-specific Quantitative Precipitation Outlook	Precipitation Time	30-Minute Rainfall and % Probability	Message Potential
Plains
Adams	Current TO 900 PM TUE	Trace (90%) to 0.2" (40%) to 0.6" (15%)	ISSUED
Arapahoe	Current TO 900 PM TUE	Trace (90%) to 0.2" (40%) to 0.6" (15%)	ISSUED
Boulder	Current TO 900 PM TUE	Trace (90%) to 0.2" (40%) to 0.6" (15%)	ISSUED
Broomfield	Current TO 900 PM TUE	Trace (90%) to 0.2" (40%) to 0.6" (15%)	ISSUED
Denver	Current TO 900 PM TUE	Trace (90%) to 0.2" (40%) to 0.6" (15%)	ISSUED
Douglas	Current TO 900 PM TUE	Trace (90%) to 0.2" (40%) to 0.6" (15%)	ISSUED
Jefferson	Current TO 900 PM TUE	Trace (90%) to 0.2" (40%) to 0.6" (15%)	ISSUED
Foothills above 6500ft
Boulder	Current TO 900 PM TUE	Trace (90%) to 0.2" (40%) to 0.6" (15%)	ISSUED
Douglas	Current TO 900 PM TUE	Trace (90%) to 0.2" (40%) to 0.6" (15%)	ISSUED
Jefferson	Current TO 900 PM TUE	Trace (90%) to 0.2" (40%) to 0.6" (15%)	ISSUED

MONITOR NATIONAL WEATHER SERVICE FOR SEVERE WEATHER STATEMENTS.