Flash Flood Prediction Program

-	The Message 3's (NWS Flash Flood Warning) issued for Adams, Arapahoe and Denver Counties has been allowed to expire. Message 2's (NWS Flood/Flash Flood Watch) will remain in place until midnight unless cancelled early as thunderstorm activity is diminishing.
-	Moderate to strong thunderstorms moved through the District this afternoon and evening producing anywhere from 1-3" of rain under the stronger storms. Rainfall intensities reached 1.0"/10 minutes under the stronger storms. The thunderstorm activity has diminished over the past hour with rain showers in their wake which will continue well into the evening.
-	Additional rain showers although light in intensity will continue to produce runoff and creeks and streams will be running high into the overnight period. Rain showers are expected to taper off after midnight but may linger into the early morning hours on Monday.

STORM RAINFALL POTENTIAL AND DURATION: Rain showers will produce a trace to 0.2" of rain in 10-30 minutes. Weak thunderstorms will produce 0.2-0.6" in 10-30 minutes.

WORST CASE SCENARIO: A moderate thunderstorm is able to develop with the potential to produce 0.4-1.2" of heavy rain in 10-30 minutes.

County	Message	Valid Times	Prime Time
Boulder County	2	Current TO 1159 PM	200 PM TO 1100 PM
Jefferson County	2	Current TO 1159 PM	200 PM TO 1100 PM
Broomfield County	2	Current TO 1159 PM	200 PM TO 1100 PM
Douglas County	2	Current TO 1159 PM	200 PM TO 1100 PM
Adams County	2	Current TO 1159 PM	200 PM TO 1100 PM
Denver County	2	Current TO 1159 PM	200 PM TO 1100 PM
DIA	2	Current TO 1159 PM	200 PM TO 1100 PM
Arapahoe County	2	Current TO 1159 PM	200 PM TO 1100 PM
the City of Aurora	2	Current TO 1159 PM	200 PM TO 1100 PM
Arvada	2	Current TO 1159 PM	200 PM TO 1100 PM
Wheat Ridge	2	Current TO 1159 PM	200 PM TO 1100 PM
Lakewood	2	Current TO 1159 PM	200 PM TO 1100 PM

County-specific Quantitative Precipitation Outlook	Precipitation Time	30-Minute Rainfall and % Probability	Message Potential
Plains
Adams	Current TO 1159 PM SUN	Trace (95%) to 0.2" (65%) to 0.6" (15%)	ISSUED
Arapahoe	Current TO 1159 PM SUN	Trace (95%) to 0.2" (65%) to 0.6" (15%)	ISSUED
Boulder	Current TO 1159 PM SUN	Trace (95%) to 0.2" (65%) to 0.6" (15%)	ISSUED
Broomfield	Current TO 1159 PM SUN	Trace (95%) to 0.2" (65%) to 0.6" (15%)	ISSUED
Denver	Current TO 1159 PM SUN	Trace (95%) to 0.2" (65%) to 0.6" (15%)	ISSUED
Douglas	Current TO 1159 PM SUN	Trace (95%) to 0.2" (65%) to 0.6" (15%)	ISSUED
Jefferson	Current TO 1159 PM SUN	Trace (95%) to 0.2" (65%) to 0.6" (15%)	ISSUED
Foothills above 6500ft
Boulder	Current TO 1159 PM SUN	Trace (95%) to 0.2" (65%) to 0.6" (15%)	ISSUED
Douglas	Current TO 1159 PM SUN	Trace (95%) to 0.2" (65%) to 0.6" (15%)	ISSUED
Jefferson	Current TO 1159 PM SUN	Trace (95%) to 0.2" (65%) to 0.6" (15%)	ISSUED

MONITOR NATIONAL WEATHER SERVICE FOR SEVERE WEATHER STATEMENTS.