Flash Flood Prediction Program

-	Message 1's and 2's will continue valid until 11:59pm.
-	Strong storms impacted the District this afternoon and evening and have since moved eastward and out of the District. A few lingering light to isolated briefly moderate rain showers persist at this time and will continue off and on over the next few hours. A chance Messages will expire prior to 11:59pm as the stronger storms stabilized the region this afternoon.
-	After midnight skies should start to clear with overnight lows dropping into the upper 50's to low 60's by daybreak Tuesday.

STORM RAINFALL POTENTIAL AND DURATION: Typical rain showers will produce a trace to 0.3" of rainfall in 10-30 minutes. A moderate rain shower/weak thunderstorm could produce 0.3-0.8" of rainfall in 10-30 minutes.

WORST CASE SCENARIO: A moderate to strong thunderstorm has the potential to produce 0.8-1.6" in 30-60 minutes.

County	Message	Valid Times	Prime Time
Boulder County	2	Current TO 1159 PM	Current TO 1159 PM
Jefferson County	2	Current TO 1159 PM	Current TO 1159 PM
Broomfield County	1	Current TO 1159 PM	Current TO 1159 PM
Douglas County	2	Current TO 1159 PM	Current TO 1159 PM
Adams County	1	Current TO 1159 PM	Current TO 1159 PM
Denver County	1	Current TO 1159 PM	Current TO 1159 PM
DIA	1	Current TO 1159 PM	Current TO 1159 PM
Arapahoe County	1	Current TO 1159 PM	Current TO 1159 PM
the City of Aurora	1	Current TO 1159 PM	Current TO 1159 PM
Arvada	2	Current TO 1159 PM	Current TO 1159 PM
Wheat Ridge	2	Current TO 1159 PM	Current TO 1159 PM
Lakewood	2	Current TO 1159 PM	Current TO 1159 PM

County-specific Quantitative Precipitation Outlook	Precipitation Time	30-Minute Rainfall and % Probability	Message Potential
Plains
Adams	Current TO 1159 PM MON	Trace (50%) to 0.3" (25%) to 0.8" (5%)	ISSUED
Arapahoe	Current TO 1159 PM MON	Trace (50%) to 0.3" (25%) to 0.8" (5%)	ISSUED
Boulder	Current TO 1159 PM MON	Trace (50%) to 0.3" (25%) to 0.8" (5%)	ISSUED
Broomfield	Current TO 1159 PM MON	Trace (50%) to 0.3" (25%) to 0.8" (5%)	ISSUED
Denver	Current TO 1159 PM MON	Trace (50%) to 0.3" (25%) to 0.8" (5%)	ISSUED
Douglas	Current TO 1159 PM MON	Trace (50%) to 0.3" (25%) to 0.8" (5%)	ISSUED
Jefferson	Current TO 1159 PM MON	Trace (50%) to 0.3" (25%) to 0.8" (5%)	ISSUED
Foothills above 6500ft
Boulder	Current TO 1159 PM MON	Trace (60%) to 0.3" (30%) to 0.8" (10%)	ISSUED
Douglas	Current TO 1159 PM MON	Trace (60%) to 0.3" (30%) to 0.8" (10%)	ISSUED
Jefferson	Current TO 1159 PM MON	Trace (60%) to 0.3" (30%) to 0.8" (10%)	ISSUED

MONITOR NATIONAL WEATHER SERVICE FOR SEVERE WEATHER STATEMENTS.