Flash Flood Prediction Program

-	Message 1's will be allowed to expire for Douglas County since the threat for Heavy Rain has come to and end.
-	Late this afternoon a gust front pushed into Douglas County from the south resulting in explosive storm development which included heavy rain, lots of lightning and large hail. Additional storms would fire up along outflow boundaries well into the evening with thunderstorms clinging to the foothills and moving north into Boulder at this time. As these thunderstorms move northward, they are decreasing rapidly into just rain showers and will diminish completely by midnight with skies gradually clearing into Sunday.
-	Overnight will be fairly mild as lows drop into the 50's. Another chance for rain showers/thunderstorms tomorrow, with a chance for heavy rainfall once again as warm temperatures, decent surface moisture with dew points in the 40's with relatively slow storm motions. At this time, the best chance for storm initiation will be around midday tomorrow with chances continuing into the evening.

STORM RAINFALL POTENTIAL AND DURATION: Typical rain showers and weak thunderstorms will produce a TR-0.1" (Favoring NW portions of the District). A moderate thunderstorm could produce 0.1-0.3" in 10-30 minutes.

WORST CASE SCENARIO: A slower moving thunderstorm has the potential to produce 0.3-0.8" in 60 minutes.

County	Message	Valid Times	Prime Time
Boulder County	1	Current TO 1000 PM	Current TO 1000 PM
Jefferson County	1	Current TO 1000 PM	Current TO 1000 PM
Broomfield County	1	Current TO 1000 PM	Current TO 1000 PM
Douglas County	1	Current TO 1000 PM	Current TO 1000 PM
Adams County	1	Current TO 1000 PM	Current TO 1000 PM
Denver County	1	Current TO 1000 PM	Current TO 1000 PM
DIA	1	Current TO 1000 PM	Current TO 1000 PM
Arapahoe County	1	Current TO 1000 PM	Current TO 1000 PM
the City of Aurora	1	Current TO 1000 PM	Current TO 1000 PM
Arvada	1	Current TO 1000 PM	Current TO 1000 PM
Wheat Ridge	1	Current TO 1000 PM	Current TO 1000 PM
Lakewood	1	Current TO 1000 PM	Current TO 1000 PM

County-specific Quantitative Precipitation Outlook	Precipitation Time	30-Minute Rainfall and % Probability	Message Potential
Plains
Adams	Current TO 1159 PM SAT	Trace (30%) to 0.1" (10%) to 0.3" (5%)	NONE
Arapahoe	Current TO 1159 PM SAT	Trace (20%) to 0.1" (10%) to 0.3" (5%)	NONE
Boulder	Current TO 1159 PM SAT	Trace (60%) to 0.1" (30%) to 0.3" (10%)	NONE
Broomfield	Current TO 1159 PM SAT	Trace (30%) to 0.1" (10%) to 0.3" (5%)	NONE
Denver	Current TO 1159 PM SAT	Trace (20%) to 0.1" (10%) to 0.3" (5%)	NONE
Douglas	Current TO 1159 PM SAT	Trace (20%) to 0.1" (10%) to 0.3" (5%)	NONE
Jefferson	Current TO 1159 PM SAT	Trace (30%) to 0.1" (10%) to 0.3" (5%)	NONE
Foothills above 6500ft
Boulder	Current TO 1159 PM SAT	Trace (50%) to 0.1" (20%) to 0.3" (10%)	NONE
Douglas	Current TO 1159 PM SAT	Trace (30%) to 0.1" (10%) to 0.3" (5%)	NONE
Jefferson	Current TO 1159 PM SAT	Trace (30%) to 0.1" (10%) to 0.3" (5%)	NONE

MONITOR NATIONAL WEATHER SERVICE FOR SEVERE WEATHER STATEMENTS.