Flash Flood Prediction Program

-	Message 1's will be allowed to expire at 9:00 PM as the threat for heavy rainfall has come to an end.
-	A few isolated showers and weak thunderstorms will be possible over the next couple of hours before conditions completely dry out for the overnight period. Any shower activity should remain minimal with a few areas of isolated moderate showers or thunderstorms possible, although the threat for any additional heavy rainfall has ended due to the lack of daytime heating and a relatively stable atmosphere in place over the region at this time
-	Best chances for an isolated shower or thunderstorm will be through 11:00 PM, with a very slight chance for any additional shower activity after midnight and will favor eastern and southern areas of the District.

STORM RAINFALL POTENTIAL AND DURATION: Isolated rain showers and weak thunderstorms will produce a trace to 0.3".

WORST CASE SCENARIO: A stronger thunderstorm, or stationary thunderstorm will produce 0.3-0.5" in 60 minutes.

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

County-specific Quantitative Precipitation Outlook	Precipitation Time	30-Minute Rainfall and % Probability	Message Potential
Plains
Adams	Current TO 1100 PM FRI	Trace (50%) to 0.3" (10%) to 0.5" (5%)	ISSUED
Arapahoe	Current TO 1100 PM FRI	Trace (50%) to 0.3" (10%) to 0.5" (5%)	ISSUED
Boulder	Current TO 1100 PM FRI	Trace (30%) to 0.3" (10%) to 0.5" (5%)	ISSUED
Broomfield	Current TO 1100 PM FRI	Trace (30%) to 0.3" (10%) to 0.5" (5%)	ISSUED
Denver	Current TO 1100 PM FRI	Trace (50%) to 0.3" (10%) to 0.5" (5%)	ISSUED
Douglas	Current TO 1100 PM FRI	Trace (50%) to 0.3" (10%) to 0.5" (5%)	ISSUED
Jefferson	Current TO 1100 PM FRI	Trace (50%) to 0.3" (10%) to 0.5" (5%)	ISSUED
Foothills above 6500ft
Boulder	Current TO 1100 PM FRI	Trace (30%) to 0.3" (10%) to 0.5" (5%)	ISSUED
Douglas	Current TO 1100 PM FRI	Trace (50%) to 0.3" (10%) to 0.5" (5%)	ISSUED
Jefferson	Current TO 1100 PM FRI	Trace (30%) to 0.3" (10%) to 0.5" (5%)	ISSUED

MONITOR NATIONAL WEATHER SERVICE FOR SEVERE WEATHER STATEMENTS.