Flash Flood Prediction Program

Mostly sunny conditions this morning are expected across the District as a series of upper-level disturbances propagate across the Intermountain West starting later today. Afternoon temperatures will reach the upper 60s to low 70s with dewpoints in the low 30s. Scattered showers are possible this afternoon and evening across complex terrain, with coverage becoming isolated as storms move east onto the Plains. Storm motion today will be quick, limiting point rainfall amounts.

STORM RAINFALL POTENTIAL AND DURATION: Typical showers will produce light rainfall of up to 0.15” total in 15-30 minutes.

WORST CASE SCENARIO: A strong thunderstorm has the potential to produce up to 0.30” total rainfall 15-30 minutes.

A LOOK AHEAD: Tomorrow will be sunny and much cooler. Temperatures will reach the low 60s with dew points in the upper 20s to low 30s. Chances for isolated showers and thunderstorms will improve during the afternoon and through the evening. Minimal precipitation is expected. Temperatures will rebound on Friday with highs in the upper 60s to low 70s and winds from the west at 10-20 mph, gusts up to 35 mph. Isolated showers and thunderstorms are once again possible during the afternoon and evening.

Location	Prime Time	30-Minute Rainfall and % Probability	Message Potential
Plains
Adams	300 PM TO 900 PM	0.05" (75%) to 0.1" (50%) to 0.15" (25%)	NONE
Arapahoe	300 PM TO 900 PM	0.05" (75%) to 0.1" (50%) to 0.15" (25%)	NONE
Boulder	300 PM TO 900 PM	0.05" (75%) to 0.1" (50%) to 0.15" (25%)	NONE
Broomfield	300 PM TO 900 PM	0.05" (75%) to 0.1" (50%) to 0.15" (25%)	NONE
Denver	300 PM TO 900 PM	0.05" (75%) to 0.1" (50%) to 0.15" (25%)	NONE
Douglas	300 PM TO 900 PM	0.05" (75%) to 0.1" (50%) to 0.15" (25%)	NONE
Jefferson	300 PM TO 900 PM	0.05" (75%) to 0.1" (50%) to 0.15" (25%)	NONE
Foothills above 6500ft
Boulder	300 PM TO 900 PM	0.05" (75%) to 0.1" (50%) to 0.15" (25%)	NONE
Douglas	300 PM TO 900 PM	0.05" (75%) to 0.1" (50%) to 0.15" (25%)	NONE
Jefferson	300 PM TO 900 PM	0.05" (75%) to 0.1" (50%) to 0.15" (25%)	NONE

MONITOR NATIONAL WEATHER SERVICE FOR SEVERE WEATHER STATEMENTS.