Time: 918 PM Fri July 26, 2024 Forecaster: Aaron O'Brien ------------------------- Internal Message Status Flash Flood Prediction Program ------------------------- MESSAGE 1’S WILL BE ALLOWED TO EXPIRE AT 10:00 PM Message 1’s will be allowed to expire at 10pm as the threat of heavy rainfall has come to an end. After a round of showers and thunderstorms early in the afternoon, only a few isolated showers persist west of the District. These showers/thunderstorms should weaken and dissipate over the next several hours creating minimal concern over point rainfall amounts. Mild and dry conditions are expected overnight and into daybreak tomorrow. Temperatures will drop into the upper 50s for the plains with low 50s along the foothills. Tomorrow looks the same conditions-wise as the set up and moisture amounts haven't changed within the District, with afternoon and evening thunderstorms that can possibly provide Message level rain amounts. STORM RAINFALL POTENTIAL AND DURATION: Minimal additional precipitation is expected tonight between a trace and 0.15” total in 10-30 minutes. WORST CASE SCENARIO: A stronger shower/thunderstorm develops will have the potential to produce 0.15”-0.30” total in 10-30 minutes. COUNTY MESSAGE VALID TIMES PRIME TIME Wheat Ridge 1 Current TO 1000 PM Current TO 1000 PM Arvada 1 Current TO 1000 PM Current TO 1000 PM the City of Aurora 1 Current TO 1000 PM Current TO 1000 PM Arapahoe County 1 Current TO 1000 PM Current TO 1000 PM DIA 1 Current TO 1000 PM Current TO 1000 PM Denver County 1 Current TO 1000 PM Current TO 1000 PM Adams County 1 Current TO 1000 PM Current TO 1000 PM Douglas County 1 Current TO 1000 PM Current TO 1000 PM Broomfield County 1 Current TO 1000 PM Current TO 1000 PM Jefferson County 1 Current TO 1000 PM Current TO 1000 PM Boulder County 1 Current TO 1000 PM Current TO 1000 PM Lakewood 1 Current TO 1000 PM Current TO 1000 PM County-specific Quantitative Precipitation Outlook PRECIPITATION TIME 30-Minute Rainfall and % Probability Message Potential Plains       Adams Current TO 1159 PM FRI Trace (30%) to 0.15" (20%) to 0.3" (10%) NONE Arapahoe Current TO 1159 PM FRI Trace (30%) to 0.15" (20%) to 0.3" (10%) NONE Boulder Current TO 1159 PM FRI Trace (30%) to 0.15" (20%) to 0.3" (10%) NONE Broomfield Current TO 1159 PM FRI Trace (30%) to 0.15" (20%) to 0.3" (10%) NONE Denver Current TO 1159 PM FRI Trace (30%) to 0.15" (20%) to 0.3" (10%) NONE Douglas Current TO 1159 PM FRI Trace (30%) to 0.15" (20%) to 0.3" (10%) NONE Jefferson Current TO 1159 PM FRI Trace (30%) to 0.15" (20%) to 0.3" (10%) NONE Foothills above 6500ft       Boulder Current TO 1159 PM FRI Trace (40%) to 0.15" (30%) to 0.3" (20%) NONE Douglas Current TO 1159 PM FRI Trace (40%) to 0.15" (30%) to 0.3" (20%) NONE Jefferson Current TO 1159 PM FRI Trace (40%) to 0.15" (30%) to 0.3" (20%) NONE MONITOR NATIONAL WEATHER SERVICE FOR SEVERE WEATHER STATEMENTS. MHFD Flood Prediction Center: 303-458-0789    F2P2 Website [http://udfcd.org/Flash+Flood+Prediction+Program]