Flash Flood Prediction Program

-	Message 1's will be allowed to expire at midnight as the threat for heavy rainfall has ended. Conditions are dry across the District at this time but rain showers and possibly a weak thunderstorm may re-develop overnight.
-	Thunderstorm activity developing along a gust front from storms over WY has pushed into CO and may reach portions of the District during the early am hours on Wednesday in a much weakened state. In addition a cold front will be moving through likely resulting in low clouds with isolated areas of light rain/mist early tomorrow morning.
-	Much cooler on Wednesday with highs only in the 80's over the plains. Coverage and strength of storms tomorrow will hinge upon how much daytime heating is observed as if temperatures stay too cool thunderstorm activity could be muted but if temperatures warm sufficiently storms could be more widespread with the potential for heavy rain.

STORM RAINFALL POTENTIAL AND DURATION: Rain showers and possibly a weak thunderstorm will produce a trace to 0.3".

WORST CASE SCENARIO: Strong thunderstorms are able to develop in a cooling air mass with the potential to produce 0.04-1.0" in 10-30 minutes.

County	Message	Valid Times	Prime Time
Boulder County	1	Current TO 1159 PM	Current TO 1159 PM
Jefferson County	1	Current TO 1159 PM	Current TO 1159 PM
Broomfield County	1	Current TO 1159 PM	Current TO 1159 PM
Douglas County	1	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	1	Current TO 1159 PM	Current TO 1159 PM
Wheat Ridge	1	Current TO 1159 PM	Current TO 1159 PM
Lakewood	1	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 1000 AM WED	Trace (80%) to 0.1" (60%) to 0.3" (15%)	ISSUED
Arapahoe	Current TO 1000 AM WED	Trace (80%) to 0.1" (60%) to 0.3" (15%)	ISSUED
Boulder	Current TO 1000 AM WED	Trace (80%) to 0.1" (60%) to 0.3" (15%)	ISSUED
Broomfield	Current TO 1000 AM WED	Trace (80%) to 0.1" (60%) to 0.3" (15%)	ISSUED
Denver	Current TO 1000 AM WED	Trace (80%) to 0.1" (60%) to 0.3" (15%)	ISSUED
Douglas	Current TO 1000 AM WED	Trace (80%) to 0.1" (60%) to 0.3" (15%)	ISSUED
Jefferson	Current TO 1000 AM WED	Trace (80%) to 0.1" (60%) to 0.3" (15%)	ISSUED
Foothills above 6500ft
Boulder	Current TO 1000 AM WED	Trace (75%) to 0.1" (50%) to 0.3" (10%)	ISSUED
Douglas	Current TO 1000 AM WED	Trace (75%) to 0.1" (50%) to 0.3" (10%)	ISSUED
Jefferson	Current TO 1000 AM WED	Trace (75%) to 0.1" (50%) to 0.3" (10%)	ISSUED

MONITOR NATIONAL WEATHER SERVICE FOR SEVERE WEATHER STATEMENTS.