Flash Flood Prediction Program

-	Message 1's will be allowed to expire at 10:00pm as the threat for heavy rainfall has come to an end.
-	Strong thunderstorms tracked just south of the District boundary earlier today, but the atmosphere has remained capped over the plains, which has suppressed thunderstorm development over the District.
-	There remains a low threat for outflow boundaries from thunderstorm activity in Wyoming to reach the District overnight and trigger some showers and thunderstorms. However, this scenario is unlikely and even if overnight showers/storms were triggered, only light to moderate rainfall would be expected.

STORM RAINFALL POTENTIAL AND DURATION: Isolated showers and possibly a thunderstorm will produce TR-0.3" in 10-30 minutes.

WORST CASE SCENARIO: A stronger thunderstorm produces rainfall of up to 0.6" in 30-60 minutes.

County	Message	Valid Times	Prime Time
Boulder County	1	Current TO 1000 PM	Current TO 1000 PM
Jefferson County	1	Current TO 1000 PM	Current TO 1000 PM
Broomfield County	1	Current TO 1000 PM	Current TO 1000 PM
Douglas County	1	Current TO 1000 PM	Current TO 1000 PM
Adams County	1	Current TO 1000 PM	Current TO 1000 PM
Denver County	1	Current TO 1000 PM	Current TO 1000 PM
DIA	1	Current TO 1000 PM	Current TO 1000 PM
Arapahoe County	1	Current TO 1000 PM	Current TO 1000 PM
the City of Aurora	1	Current TO 1000 PM	Current TO 1000 PM
Arvada	1	Current TO 1000 PM	Current TO 1000 PM
Wheat Ridge	1	Current TO 1000 PM	Current TO 1000 PM
Lakewood	1	Current TO 1000 PM	Current TO 1000 PM

County-specific Quantitative Precipitation Outlook	Precipitation Time	30-Minute Rainfall and % Probability	Message Potential
Plains
Adams	Current TO 300 AM SUN	Trace (40%) to 0.1" (25%) to 0.3" (10%)	ISSUED
Arapahoe	Current TO 300 AM SUN	Trace (40%) to 0.1" (25%) to 0.3" (10%)	ISSUED
Boulder	Current TO 300 AM SUN	Trace (40%) to 0.1" (25%) to 0.3" (10%)	ISSUED
Broomfield	Current TO 300 AM SUN	Trace (40%) to 0.1" (25%) to 0.3" (10%)	ISSUED
Denver	Current TO 300 AM SUN	Trace (40%) to 0.1" (25%) to 0.3" (10%)	ISSUED
Douglas	Current TO 300 AM SUN	Trace (40%) to 0.1" (25%) to 0.3" (10%)	ISSUED
Jefferson	Current TO 300 AM SUN	Trace (40%) to 0.1" (25%) to 0.3" (10%)	ISSUED
Foothills above 6500ft
Boulder	Current TO 300 AM SUN	Trace (40%) to 0.1" (25%) to 0.3" (10%)	ISSUED
Douglas	Current TO 300 AM SUN	Trace (40%) to 0.1" (25%) to 0.3" (10%)	ISSUED
Jefferson	Current TO 300 AM SUN	Trace (40%) to 0.1" (25%) to 0.3" (10%)	ISSUED

MONITOR NATIONAL WEATHER SERVICE FOR SEVERE WEATHER STATEMENTS.