Flash Flood Prediction Program

-	Message 1's will continue valid until 8pm although the threat for heavy rainfall is diminishing now that the main area of thunderstorms has pushed eastward.
-	Additional isolated rain showers and weak to moderate thunderstorms remain possible over the next few hours but but the strength of storms is expected to be less intense than earlier today, however a stronger storm cannot be completely ruled out.

STORM RAINFALL POTENTIAL AND DURATION: Rain showers and weak thunderstorms will produce a trace to 0.2" of rainfall in 10-30 minutes. Moderate thunderstorms will have the potential to produce heavy rainfall of 0.2-0.6" in 10-30 minutes.

WORST CASE SCENARIO: A strong thunderstorm is able to develop with the potential to produce heavy rainfall of 0.5-1.5" in 10-30 minutes.

County	Message	Valid Times	Prime Time
Boulder County	1	Current TO 800 PM	Current TO 700 PM
Jefferson County	1	Current TO 800 PM	Current TO 700 PM
Broomfield County	1	Current TO 800 PM	Current TO 700 PM
Douglas County	1	Current TO 800 PM	Current TO 700 PM
Adams County	1	Current TO 800 PM	Current TO 700 PM
Denver County	1	Current TO 800 PM	Current TO 700 PM
DIA	1	Current TO 800 PM	Current TO 700 PM
Arapahoe County	1	Current TO 800 PM	Current TO 700 PM
the City of Aurora	1	Current TO 800 PM	Current TO 700 PM
Arvada	1	Current TO 800 PM	Current TO 700 PM
Wheat Ridge	1	Current TO 800 PM	Current TO 700 PM
Lakewood	1	Current TO 800 PM	Current TO 700 PM

County-specific Quantitative Precipitation Outlook	Precipitation Time	30-Minute Rainfall and % Probability	Message Potential
Plains
Adams	Current TO 800 PM FRI	Trace (60%) to 0.2" (30%) to 0.6" (10%)	ISSUED
Arapahoe	Current TO 800 PM FRI	Trace (80%) to 0.2" (40%) to 0.6" (20%)	ISSUED
Boulder	Current TO 800 PM FRI	Trace (60%) to 0.2" (30%) to 0.6" (10%)	ISSUED
Broomfield	Current TO 800 PM FRI	Trace (60%) to 0.2" (30%) to 0.6" (10%)	ISSUED
Denver	Current TO 800 PM FRI	Trace (60%) to 0.2" (30%) to 0.6" (10%)	ISSUED
Douglas	Current TO 800 PM FRI	Trace (90%) to 0.2" (50%) to 0.6" (30%)	ISSUED
Jefferson	Current TO 800 PM FRI	Trace (80%) to 0.2" (40%) to 0.6" (20%)	ISSUED
Foothills above 6500ft
Boulder	Current TO 800 PM FRI	Trace (80%) to 0.2" (40%) to 0.6" (15%)	ISSUED
Douglas	Current TO 800 PM FRI	Trace (90%) to 0.2" (50%) to 0.6" (30%)	ISSUED
Jefferson	Current TO 800 PM FRI	Trace (80%) to 0.2" (40%) to 0.6" (20%)	ISSUED

MONITOR NATIONAL WEATHER SERVICE FOR SEVERE WEATHER STATEMENTS.