Flash Flood Prediction Program

-	High pressure continues to build across Eastern Colorado, which will result in hot temperatures across the District with highs in the upper 80s to near 90 on the plains.
-	Moisture continues to decrease across the region, but enough instability will be present this afternoon for some isolated high-based showers and thunderstorms to develop by mid to late afternoon, favoring southern and western portions of the District.
-	Storms today will move to the E/NE at 12-17mph and will produce light rainfall and gusty winds. Thunderstorm activity will quickly diminish this evening with the loss of daytime heating.

STORM RAINFALL POTENTIAL AND DURATION: Typical showers and weak thunderstorms will produce rainfall amounts of TR-0.1" in 10-30 minutes, with op to 0.2" possible in 10-30 minutes under stronger thunderstorms.

WORST CASE SCENARIO: A stronger thunderstorm produces rainfall of up to 0.5" in 30-60 minutes.

A LOOK AHEAD: Thursday and Friday will be hot and mostly dry across the plains, while isolated afternoon thunderstorms will be possible both days across the foothills and Palmer Divide. Moisture will gradually increase from the southwest this weekend, leading to a more noticeable uptick in thunderstorm activity and heavy rainfall potential by Sunday and Monday.

Location	Prime Time	30-Minute Rainfall and % Probability	Message Potential
Plains
Adams	300 PM TO 800 PM	Trace (70%) to 0.1" (40%) to 0.2" (10%)	NONE
Arapahoe	300 PM TO 800 PM	Trace (75%) to 0.1" (45%) to 0.2" (10%)	NONE
Boulder	300 PM TO 800 PM	Trace (75%) to 0.1" (45%) to 0.2" (10%)	NONE
Broomfield	300 PM TO 800 PM	Trace (70%) to 0.1" (40%) to 0.2" (10%)	NONE
Denver	300 PM TO 800 PM	Trace (70%) to 0.1" (40%) to 0.2" (10%)	NONE
Douglas	300 PM TO 800 PM	Trace (80%) to 0.1" (45%) to 0.2" (15%)	NONE
Jefferson	300 PM TO 800 PM	Trace (80%) to 0.1" (45%) to 0.2" (10%)	NONE
Foothills above 6500ft
Douglas	300 PM TO 800 PM	Trace (85%) to 0.1" (50%) to 0.2" (15%)	NONE
Jefferson	300 PM TO 800 PM	Trace (85%) to 0.1" (50%) to 0.2" (15%)	NONE
Boulder	200 PM TO 800 PM	Trace (80%) to 0.1" (45%) to 0.2" (15%)	NONE

MONITOR NATIONAL WEATHER SERVICE FOR SEVERE WEATHER STATEMENTS.