Flash Flood Prediction Program

-	Message 1's will continue valid until 8:00pm for Adams, Arapahoe, Denver, and Douglas Counties.
-	Showers and thunderstorms continue to impact the District late this afternoon, although the intensity of thunderstorms has weakened overall with a cool airmass in place. Still, there remains a chance for an isolated stronger thunderstorm to develop during the next couple of hours, in which case heavy rainfall could occur with sufficient low level moisture in place.
-	Later this evening, showers and thunderstorms will gradually give way to more widespread light to moderate rain showers during the overnight period. However, a stable airmass will be in place overnight, which will remove the threat for heavy rainfall.

STORM RAINFALL POTENTIAL AND DURATION: Weak to moderate thunderstorms will produce rainfall amounts of 0.05-0.3" in 10-30 minutes. Strong thunderstorms will be capable of producing rainfall of 0.3-0.8" in 10-30 minutes.

County	Message	Valid Times	Prime Time
Douglas County	1	Current TO 800 PM	Current TO 700 PM
Adams County	1	Current TO 800 PM	Current TO 700 PM
Denver County	1	Current TO 800 PM	Current TO 700 PM
DIA	1	Current TO 800 PM	Current TO 700 PM
Arapahoe County	1	Current TO 800 PM	Current TO 700 PM
the City of Aurora	1	Current TO 800 PM	Current TO 700 PM

County-specific Quantitative Precipitation Outlook	Precipitation Time	30-Minute Rainfall and % Probability	Message Potential
Plains
Adams	Current TO 800 PM FRI	0.1" (100%) to 0.3" (50%) to 0.8" (20%)	ISSUED
Arapahoe	Current TO 800 PM FRI	0.1" (95%) to 0.3" (50%) to 0.8" (20%)	ISSUED
Boulder	Current TO 800 PM FRI	0.1" (95%) to 0.3" (40%) to 0.8" (10%)	LOW
Broomfield	Current TO 800 PM FRI	0.1" (95%) to 0.3" (40%) to 0.8" (10%)	LOW
Denver	Current TO 800 PM FRI	0.1" (100%) to 0.3" (45%) to 0.8" (10%)	ISSUED
Douglas	Current TO 800 PM FRI	0.1" (95%) to 0.3" (50%) to 0.8" (20%)	ISSUED
Jefferson	Current TO 800 PM FRI	0.1" (95%) to 0.3" (40%) to 0.8" (10%)	LOW
Foothills above 6500ft
Boulder	Current TO 800 PM FRI	0.1" (95%) to 0.3" (40%) to 0.8" (10%)	LOW
Douglas	Current TO 800 PM FRI	0.1" (95%) to 0.3" (40%) to 0.8" (10%)	ISSUED
Jefferson	Current TO 800 PM FRI	0.1" (95%) to 0.3" (50%) to 0.8" (20%)	MOD

MONITOR NATIONAL WEATHER SERVICE FOR SEVERE WEATHER STATEMENTS.