Time: 614 PM Tue July 16, 2024 Forecaster: Justin Brooks ------------------------- Internal Message Status Flash Flood Prediction Program ------------------------- MESSAGE 1’S WILL CONTINUE VALID UNTIL 10:00 PM Message 1’s will continue to be valid until 10pm as the threat of heavy rainfall remains. After a round of moderate to strong showers and thunderstorms across the District, with skies clearing behind. Another round of showers will be possible later this evening, likely between 8-10pm. Some sunshine and dew points in the 50s will keep the threat for moderate to heavy rainfall into the evening hours, favoring the foothills at this time. Once this final round of showers moves through, a very slight chance for a few lingering showers after 10pm with skies gradually clearing through the overnight. Temperatures overnight will drop into the low to mid 60s for the plains with mid to upper 50s along the foothills. STORM RAINFALL POTENTIAL AND DURATION: Typical showers and thunderstorms will produce a 0.05-0.30” total in 10-30 minutes. A moderate to strong shower/thunderstorm will produce 0.30-0.60” total in 10-30 minutes. WORST CASE SCENARIO: A strong stationary thunderstorm or training of thunderstorm cells will have the potential to produce up to 1.20” total in 30-60 minutes. COUNTY MESSAGE VALID TIMES PRIME TIME Boulder County 1 Current TO 1000 PM Current TO 930 PM Jefferson County 1 Current TO 1000 PM Current TO 930 PM Broomfield County 1 Current TO 1000 PM Current TO 930 PM Douglas County 1 Current TO 1000 PM Current TO 930 PM Adams County 1 Current TO 1000 PM Current TO 930 PM Denver County 1 Current TO 1000 PM Current TO 930 PM DIA 1 Current TO 1000 PM Current TO 930 PM Arapahoe County 1 Current TO 1000 PM Current TO 930 PM the City of Aurora 1 Current TO 1000 PM Current TO 930 PM Arvada 1 Current TO 1000 PM Current TO 930 PM Wheat Ridge 1 Current TO 1000 PM Current TO 930 PM Lakewood 1 Current TO 1000 PM Current TO 930 PM County-specific Quantitative Precipitation Outlook PRECIPITATION TIME 30-Minute Rainfall and % Probability Message Potential Plains       Adams Current TO 1000 PM TUE 0.05" (30%) to 0.3" (20%) to 0.6" (10%) ISSUED Arapahoe Current TO 1000 PM TUE 0.05" (30%) to 0.3" (20%) to 0.6" (10%) ISSUED Boulder Current TO 1000 PM TUE 0.05" (30%) to 0.3" (20%) to 0.6" (10%) ISSUED Broomfield Current TO 1000 PM TUE 0.05" (30%) to 0.3" (20%) to 0.6" (10%) ISSUED Denver Current TO 1000 PM TUE 0.05" (30%) to 0.3" (20%) to 0.6" (10%) ISSUED Douglas Current TO 1000 PM TUE 0.05" (30%) to 0.3" (20%) to 0.6" (10%) ISSUED Jefferson Current TO 1000 PM TUE 0.05" (30%) to 0.3" (20%) to 0.6" (10%) ISSUED Foothills above 6500ft       Boulder Current TO 1000 PM TUE 0.05" (60%) to 0.3" (30%) to 0.6" (15%) ISSUED Douglas Current TO 1000 PM TUE 0.05" (60%) to 0.3" (30%) to 0.6" (15%) ISSUED Jefferson Current TO 1000 PM TUE 0.05" (60%) to 0.3" (30%) to 0.6" (15%) 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]