Flash Flood Prediction Program

-	Message 1's will be allowed to expire at 8:00 pm as the threat for heavy rainfall has ended for the day.
-	Storm activity has come to an end over the District, but additional isolated rain showers will be possible over the next 1-2 hours although rainfall rates will be light and produce minimal runoff. Chances for isolated rain showers will taper off after 10:00pm as skies gradually clear through the overnight.
-	Warmer tomorrow as high temperatures reach the upper 80's to low 90's. A decrease in surface and upper-level moisture will limit storm activity across the District tomorrow with no threat for heavy rainfall at this time.

STORM RAINFALL POTENTIAL AND DURATION: Isolated rain showers will produce a trace to 0.1" in 10-30 minutes. Supplemental QPF is available at https://qpf.udfcd.org

WORST CASE SCENARIO: A weak to moderate thunderstorm is able to develop with the potential to produce 0.1-0.3" in 10-30 minutes.

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

County-specific Quantitative Precipitation Outlook	Precipitation Time	30-Minute Rainfall and % Probability	Message Potential
Plains
Adams	Current TO 1000 PM TUE	Trace (20%) to 0.1" (10%) to 0.2" (5%)	ISSUED
Arapahoe	Current TO 1000 PM TUE	Trace (20%) to 0.1" (10%) to 0.2" (5%)	ISSUED
Boulder	Current TO 1000 PM TUE	Trace (20%) to 0.1" (10%) to 0.2" (5%)	ISSUED
Broomfield	Current TO 1000 PM TUE	Trace (20%) to 0.1" (10%) to 0.2" (5%)	ISSUED
Denver	Current TO 1000 PM TUE	Trace (20%) to 0.1" (10%) to 0.2" (5%)	ISSUED
Douglas	Current TO 1000 PM TUE	Trace (20%) to 0.1" (10%) to 0.2" (5%)	ISSUED
Jefferson	Current TO 1000 PM TUE	Trace (20%) to 0.1" (10%) to 0.2" (5%)	ISSUED
Foothills above 6500ft
Boulder	Current TO 1000 PM TUE	Trace (20%) to 0.1" (10%) to 0.2" (5%)	ISSUED
Douglas	Current TO 1000 PM TUE	Trace (20%) to 0.1" (10%) to 0.2" (5%)	ISSUED
Jefferson	Current TO 1000 PM TUE	Trace (20%) to 0.1" (10%) to 0.2" (5%)	ISSUED

MONITOR NATIONAL WEATHER SERVICE FOR SEVERE WEATHER STATEMENTS.