Flash Flood Prediction Program

Time: 1020 AM Sat April 27, 2024 Forecaster: Laura Smith ------------------------- Heavy Precipitation Outlook Flash Flood Prediction Program ------------------------- WIDESPREAD PERSISTENT PRECIPITATION TODAY Widespread persistent precipitation continues today and tonight as easterly upslope moisture surges into the region. Temperatures today will only reach the upper 30s to low 40s across the District, inhibiting thunderstorm activity. Persistent rainfall throughout the day today will result in elevated streams and creeks. Rain across lower elevations will continue into the evening before decreasing in intensity overnight. Areas above 6000 ft (foothills) can expect snow throughout the day and tonight. STORM RAINFALL POTENTIAL AND DURATION: Non-thunderstorm rain showers will have the potential produce rainfall rates up to 0.10"-0.50" total in 30-60 minutes. WORST CASE SCENARIO: In the unlikely event thunderstorms develop, they could potentially produce up to 1.00" total in 60 minutes. A LOOK AHEAD: Tomorrow, isolated to scattered showers and thunderstorms are possible due to return flow from this system. Minimal precipitation is expected. Temperatures will reach the upper 50s to low 60s with winds from the southwest at 5-15 mph. Precipitation will fully conclude late Sunday night as this impressive system meanders east. Temperatures will rebound quickly on Monday with afternoon highs reaching the upper 60s to low 70s under mostly sunny skies. LOCATION PRIME TIME 30-Minute Rainfall and % Probability Message Potential Plains       Adams Current TO 1159 AM SAT 0.1" (90%) to 0.25" (50%) to 0.5" (10%) LOW Arapahoe Current TO 1159 AM SAT 0.1" (90%) to 0.25" (50%) to 0.5" (10%) LOW Boulder Current TO 1159 AM SAT 0.1" (90%) to 0.25" (50%) to 0.5" (10%) LOW Broomfield Current TO 1159 AM SAT 0.1" (90%) to 0.25" (50%) to 0.5" (10%) LOW Denver Current TO 1159 AM SAT 0.1" (90%) to 0.25" (50%) to 0.5" (10%) LOW Douglas Current TO 1159 AM SAT 0.1" (90%) to 0.25" (50%) to 0.5" (10%) LOW Jefferson Current TO 1159 AM SAT 0.1" (90%) to 0.25" (50%) to 0.5" (10%) LOW Foothills above 6500ft       Boulder Current TO 1159 AM SAT 0.1" (90%) to 0.2" (50%) to 0.3" (10%) NONE Douglas Current TO 1159 AM SAT 0.1" (90%) to 0.2" (50%) to 0.3" (10%) NONE Jefferson Current TO 1159 AM SAT 0.1" (90%) to 0.2" (50%) to 0.3" (10%) 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]