Flash Flood Prediction Program

Message 1’s will be allowed to expire at 9pm as the threat of heavy rainfall has come to an end.

Storms just outside of the District have stabilized the region with any shower activity falling apart along the higher terrain, but a gust front is currently moving through the District. Due to the strong cap over the District, the gust front will likely have minimal impact with only very isolated showers possible through 11pm.

Skies will gradually clear through the rest of the evening with clear skies expected during the overnight. Overnight lows will drop into the upper 50s on the plains with low 50s along the foothills.

STORM RAINFALL POTENTIAL AND DURATION: If a shower does develop, it would have the potential to produce between a trace and 0.10" in 10-30 minutes.

WORST CASE SCENARIO: If a stronger shower or isolated thunderstorm is able to develop, it would have the potential to produce between 0.10" and 0.20" in 10-30 minutes.

County	Message	Valid Times	Prime Time
Lakewood	1	Current TO 900 PM	Current TO 900 PM
Arvada	1	Current TO 900 PM	Current TO 900 PM
Wheat Ridge	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
Denver County	1	Current TO 900 PM	Current TO 900 PM
Adams 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 THU	Trace (15%) to 0.05" (10%) to 0.1" (5%)	ISSUED
Arapahoe	Current TO 1100 PM THU	Trace (15%) to 0.05" (10%) to 0.1" (5%)	ISSUED
Boulder	Current TO 1100 PM THU	Trace (15%) to 0.05" (10%) to 0.1" (5%)	ISSUED
Broomfield	Current TO 1100 PM THU	Trace (15%) to 0.05" (10%) to 0.1" (5%)	ISSUED
Denver	Current TO 1100 PM THU	Trace (15%) to 0.05" (10%) to 0.1" (5%)	ISSUED
Douglas	Current TO 1100 PM THU	Trace (15%) to 0.05" (10%) to 0.1" (5%)	ISSUED
Jefferson	Current TO 1100 PM THU	Trace (15%) to 0.05" (10%) to 0.1" (5%)	ISSUED
Foothills above 6500ft
Boulder	Current TO 1100 PM THU	Trace (15%) to 0.05" (10%) to 0.1" (5%)	ISSUED
Douglas	Current TO 1100 PM THU	Trace (15%) to 0.05" (10%) to 0.1" (5%)	ISSUED
Jefferson	Current TO 1100 PM THU	Trace (15%) to 0.05" (10%) to 0.1" (5%)	ISSUED

MONITOR NATIONAL WEATHER SERVICE FOR SEVERE WEATHER STATEMENTS.