Flash Flood Prediction Program

Message 1’s will be allowed to expire at 8pm as the threat of heavy rain has come to an end.

Stronger storms that formed just outside of the District have moved east at this time, with only lingering light showers moving off the foothills, favoring northern portions of the District. Storm motions continue to move between 20-30mph helping limit point rainfall amounts. Atmospheric conditions will remain capped this evening and through the overnight hours, supporting little to no additional chances for precipitation once these residual showers/isolated thunderstorms move through the District. Skies will gradually clear through the rest of the evening with clear skies expected during the overnight.

Overnight lows will drop into the mid to upper 50s on the plains with upper 40s to around 50 degrees along the foothills.

STORM RAINFALL POTENTIAL AND DURATION: A few lingering showers will have potenial to produce T-0.10" total in 10-30 minutes.

WORST CASE SCENARIO: In the event an isolated stronger shower or thunderstorm develops, 0.10"-0.30” total is possible in 10-30 minutes.

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

Precipitation Time	30-Minute Rainfall and % Probability	Message Potential
Current TO 900 PM SAT	Trace (30%) to 0.1" (15%) to 0.3" (5%)	NONE
Current TO 900 PM SAT	Trace (30%) to 0.1" (15%) to 0.3" (5%)	NONE
Current TO 900 PM SAT	Trace (30%) to 0.1" (15%) to 0.3" (5%)	NONE
Current TO 900 PM SAT	Trace (50%) to 0.1" (25%) to 0.3" (10%)	NONE
Current TO 900 PM SAT	Trace (50%) to 0.1" (25%) to 0.3" (10%)	NONE
Current TO 900 PM SAT	Trace (50%) to 0.1" (25%) to 0.3" (10%)	NONE
Current TO 900 PM SAT	Trace (50%) to 0.1" (25%) to 0.3" (10%)	NONE
Current TO 900 PM SAT	Trace (50%) to 0.1" (25%) to 0.3" (10%)	NONE
Current TO 900 PM SAT	Trace (50%) to 0.1" (25%) to 0.3" (10%)	NONE
Current TO 900 PM SAT	Trace (50%) to 0.1" (25%) to 0.3" (10%)	NONE

MONITOR NATIONAL WEATHER SERVICE FOR SEVERE WEATHER STATEMENTS.