Flash Flood Prediction Program

-	All Message 1 LIF's and Message 3's issued earlier have been allowed to expire and the Message 2's (NWS Flash Flood Watch) remain in effect until midnight at this time. Message 2's may be rescinded earlier than midnight as conditions are calming down over the District currently.
-	Strong thunderstorms with heavy rainfall impacted portions of the District earlier today with scattered light to briefly moderate rain showers currently ongoing over the District. Now that temperatures have cooled into the 60's over the plains and the atmosphere has already been churned the threat for thunderstorms with heavy rainfall is rapidly decreasing as we move forward in time.
-	Rain showers remain likely through about 9pm then generally dry conditions are expected to develop for the evening and overnight period. A quick 1-2" of rain was observed under the stronger thunderstorms with isolated higher amounts of over 2" in isolated areas.

STORM RAINFALL POTENTIAL AND DURATION: Rain showers will produce a trace to 0.1" in 10-30 minutes. Weak thunderstorms will have the potential to produce 0.1-0.4" in 10-30 minutes.

WORST CASE SCENARIO: Moderate to strong thunderstorms are able to re-develop with the potential to produce heavy rainfall rates of 0.6-1.8" in 10-30 minutes.

County	Message	Valid Times	Prime Time
Arapahoe County	2	1100 AM TO 1159 PM	1100 AM TO 900 PM
DIA	2	1100 AM TO 1159 PM	1100 AM TO 900 PM
Denver County	2	1100 AM TO 1159 PM	1100 AM TO 900 PM
Adams County	2	1100 AM TO 1159 PM	1100 AM TO 900 PM
Douglas County	2	1100 AM TO 1159 PM	1100 AM TO 900 PM
Broomfield County	2	1100 AM TO 1159 PM	1100 AM TO 900 PM
Jefferson County	2	1100 AM TO 1159 PM	1100 AM TO 900 PM
Boulder County	2	1100 AM TO 1159 PM	1100 AM TO 900 PM
the City of Aurora	2	1100 AM TO 1159 PM	1100 AM TO 900 PM
Arvada	2	1100 AM TO 1159 PM	1100 AM TO 900 PM
Wheat Ridge	2	1100 AM TO 1159 PM	1100 AM TO 900 PM
Lakewood	2	1100 AM TO 1159 PM	1100 AM TO 900 PM

County-specific Quantitative Precipitation Outlook	Precipitation Time	30-Minute Rainfall and % Probability	Message Potential
Plains
Adams	Current TO 1159 PM THU	Trace (90%) to 0.2" (40%) to 0.4" (10%)	ISSUED
Arapahoe	Current TO 1159 PM THU	Trace (90%) to 0.2" (40%) to 0.4" (10%)	ISSUED
Boulder	Current TO 1159 PM THU	Trace (90%) to 0.2" (40%) to 0.4" (10%)	ISSUED
Broomfield	Current TO 1159 PM THU	Trace (90%) to 0.2" (40%) to 0.4" (10%)	ISSUED
Denver	Current TO 1159 PM THU	Trace (90%) to 0.2" (40%) to 0.4" (10%)	ISSUED
Douglas	Current TO 1159 PM THU	Trace (90%) to 0.2" (40%) to 0.4" (10%)	ISSUED
Jefferson	Current TO 1159 PM THU	Trace (90%) to 0.2" (40%) to 0.4" (10%)	ISSUED
Foothills above 6500ft
Boulder	Current TO 1159 PM THU	Trace (90%) to 0.2" (40%) to 0.4" (10%)	ISSUED
Douglas	Current TO 1159 PM THU	Trace (90%) to 0.2" (40%) to 0.4" (10%)	ISSUED
Jefferson	Current TO 1159 PM THU	Trace (90%) to 0.2" (40%) to 0.4" (10%)	ISSUED

MONITOR NATIONAL WEATHER SERVICE FOR SEVERE WEATHER STATEMENTS.