Flash Flood Prediction Program

-	Message 1's will be allowed to expire at midnight as the threat for heavy rainfall has ended. Additional light rain shower activity will continue possible overnight.
-	The last moderate to strong thunderstorm exited the far SE portion of the District just after 10 PM. Overnight, surface moisture will continue to push into the District resulting in low clouds and fog developing with areas of drizzle and light rain into daybreak Tuesday morning over the plains.
-	Precipitation overnight is expected to be light now that surface temperatures have cooled into the 40's and 50's lowering the threat for thunderstorms.

STORM RAINFALL POTENTIAL AND DURATION: Rain showers will produce a trace to 0.2" in 10-30 minutes.

WORST CASE SCENARIO: An isolated moderate to strong thunderstorm manages to develop overnight producing small hail and brief moderate to heavy rain of 0.2-0.6" in 10-30 minutes.

County	Message	Valid Times	Prime Time
Boulder County	1	Current TO 1159 PM	Current TO 1100 PM
Jefferson County	1	Current TO 1159 PM	Current TO 1100 PM
Broomfield County	1	Current TO 1159 PM	Current TO 1100 PM
Douglas County	1	Current TO 1159 PM	Current TO 1100 PM
Adams County	1	Current TO 1159 PM	Current TO 1100 PM
Denver County	1	Current TO 1159 PM	Current TO 1100 PM
DIA	1	Current TO 1159 PM	Current TO 1100 PM
Arapahoe County	1	Current TO 1159 PM	Current TO 1100 PM
the City of Aurora	1	Current TO 1159 PM	Current TO 1100 PM
Arvada	1	Current TO 1159 PM	Current TO 1100 PM
Wheat Ridge	1	Current TO 1159 PM	Current TO 1100 PM
Lakewood	1	Current TO 1159 PM	Current TO 1100 PM

County-specific Quantitative Precipitation Outlook	Precipitation Time	30-Minute Rainfall and % Probability	Message Potential
Plains
Adams	Current TO 1000 AM TUE	Trace (95%) to 0.1" (50%) to 0.3" (10%)	NONE
Arapahoe	Current TO 1000 AM TUE	Trace (95%) to 0.1" (50%) to 0.3" (10%)	NONE
Boulder	Current TO 1000 AM TUE	Trace (95%) to 0.1" (50%) to 0.3" (10%)	NONE
Broomfield	Current TO 1000 AM TUE	Trace (95%) to 0.1" (50%) to 0.3" (10%)	NONE
Denver	Current TO 1000 AM TUE	Trace (95%) to 0.1" (50%) to 0.3" (10%)	NONE
Douglas	Current TO 1000 AM TUE	Trace (95%) to 0.1" (50%) to 0.3" (10%)	NONE
Jefferson	Current TO 1000 AM TUE	Trace (95%) to 0.1" (50%) to 0.3" (10%)	NONE
Foothills above 6500ft
Boulder	Current TO 1000 AM TUE	Trace (90%) to 0.1" (60%) to 0.3" (15%)	NONE
Douglas	Current TO 1000 AM TUE	Trace (90%) to 0.1" (60%) to 0.3" (15%)	NONE
Jefferson	Current TO 1000 AM TUE	Trace (90%) to 0.1" (60%) to 0.3" (15%)	NONE

MONITOR NATIONAL WEATHER SERVICE FOR SEVERE WEATHER STATEMENTS.