Time: 928 AM Wed July 10, 2019 Forecaster: Nick Barlow

Heavy Precipitation Outlook
Flash Flood Prediction Program

SLIGHTLY COOLER WITH A CHANCE FOR AN ISOLATED THUNDERSTORM
-A weak cold front slipped into NE Colorado last evening, which will curb afternoon temperatures by a few degrees today. Look for highs in the mid to upper 80s, with plenty of sunshine expected.
-Low-level southeasterly flow will help hold enough moisture along the Front Range for a few isolated showers and thunderstorms to form over the foothills later this afternoon. There is a slight chance a weak, high-based storm could drift onto the adjacent plains early this evening.
-Today's storms will produce little rainfall, with lightning and brief gusty winds being the primary threats. Any lingering storms will quickly dissipate after dark with the loss of daytime heating and lack of large-scale forcing.
STORM RAINFALL POTENTIAL AND DURATION: Isolated showers and thunderstorms will produce rainfall amounts between Trace-0.20" in 10-30 minutes.

A LOOK AHEAD: The subtropical ridge of high pressure strengthens over SW Colorado on Thursday, pushing afternoon temperatures back into the low to mid 90s. Enough moisture remains for another day of isolated showers and thunderstorms over the higher terrain, along with continued slim chances for a weak storm over the plains.

Location Prime Time 30-Minute Rainfall
and % Probability
Message
Potential
Plains      
Adams 500 PM TO 900 PM
Trace (50%) to 0.1" (30%) to 0.2" (5%) NONE
Arapahoe 500 PM TO 900 PM
Trace (60%) to 0.1" (40%) to 0.2" (10%) NONE
Boulder 500 PM TO 900 PM
Trace (50%) to 0.1" (30%) to 0.2" (5%) NONE
Broomfield 500 PM TO 900 PM
Trace (50%) to 0.1" (30%) to 0.2" (5%) NONE
Denver 500 PM TO 900 PM
Trace (60%) to 0.1" (40%) to 0.2" (10%) NONE
Douglas 500 PM TO 900 PM
Trace (75%) to 0.1" (55%) to 0.2" (15%) NONE
Jefferson 500 PM TO 900 PM
Trace (75%) to 0.1" (55%) to 0.2" (15%) NONE
Foothills above 6500ft      
Boulder 400 PM TO 900 PM
Trace (60%) to 0.1" (40%) to 0.2" (10%) NONE
Douglas 400 PM TO 900 PM
Trace (80%) to 0.1" (60%) to 0.2" (15%) NONE
Jefferson 400 PM TO 900 PM
Trace (80%) to 0.1" (60%) to 0.2" (15%) NONE
MONITOR NATIONAL WEATHER SERVICE FOR SEVERE WEATHER STATEMENTS.