Flash Flood Prediction Program

Time: 814 PM Wed July 14, 2021 Forecaster: Brad Simmons ------------------------- Internal Message Status Flash Flood Prediction Program ------------------------- MESSAGE 1'S WILL BE ALLOWED TO EXPIRE - Message 1's will be allowed to expire at 10:00pm as the threat for heavy rainfall has ended for the day. - Cooler temperatures today resulted in thunderstorms this afternoon generally remaining on the weak to moderate side producing small pockets of heavy rainfall. - Additional light rain shower activity is expected to move through the District from NW to SE this evening with dry conditions by midnight or before. STORM RAINFALL POTENTIAL AND DURATION: Rain showers will produce TR-0.1" of rain. Weak thunderstorms should they develop will have the potential to produce 0.1-0.4" in 10-30 minutes. COUNTY MESSAGE VALID TIMES PRIME TIME Boulder County 1 Current TO 1000 PM 330 PM TO 930 PM Jefferson County 1 Current TO 1000 PM 330 PM TO 930 PM Broomfield County 1 Current TO 1000 PM 330 PM TO 930 PM Douglas County 1 Current TO 1000 PM 330 PM TO 930 PM Adams County 1 Current TO 1000 PM 330 PM TO 930 PM Denver County 1 Current TO 1000 PM 330 PM TO 930 PM DIA 1 Current TO 1000 PM 330 PM TO 930 PM Arapahoe County 1 Current TO 1000 PM 330 PM TO 930 PM the City of Aurora 1 Current TO 1000 PM 330 PM TO 930 PM Arvada 1 Current TO 1000 PM 330 PM TO 930 PM Wheat Ridge 1 Current TO 1000 PM 330 PM TO 930 PM Lakewood 1 Current TO 1000 PM 330 PM TO 930 PM County-specific Quantitative Precipitation Outlook PRECIPITATION TIME 30-Minute Rainfall and % Probability Message Potential Plains       Adams Current TO 1159 PM WED Trace (80%) to 0.1" (50%) to 0.4" (10%) ISSUED Arapahoe Current TO 1159 PM WED Trace (80%) to 0.1" (50%) to 0.4" (10%) ISSUED Boulder Current TO 1159 PM WED Trace (80%) to 0.1" (50%) to 0.4" (10%) ISSUED Broomfield Current TO 1159 PM WED Trace (80%) to 0.1" (50%) to 0.4" (10%) ISSUED Denver Current TO 1159 PM WED Trace (80%) to 0.1" (50%) to 0.4" (10%) ISSUED Douglas Current TO 1159 PM WED Trace (80%) to 0.1" (50%) to 0.4" (10%) ISSUED Jefferson Current TO 1159 PM WED Trace (80%) to 0.1" (50%) to 0.4" (10%) ISSUED Foothills above 6500ft       Boulder Current TO 1159 PM WED Trace (80%) to 0.1" (50%) to 0.4" (10%) ISSUED Douglas Current TO 1159 PM WED Trace (80%) to 0.1" (50%) to 0.4" (10%) ISSUED Jefferson Current TO 1159 PM WED Trace (80%) to 0.1" (50%) to 0.4" (10%) ISSUED MONITOR NATIONAL WEATHER SERVICE FOR SEVERE WEATHER STATEMENTS. MHFD Flood Prediction Center: 303-458-0789    F2P2 Website [http://udfcd.org/Flash+Flood+Prediction+Program]