Flash Flood Prediction Program

Time: 910 AM Sun May 5, 2024 Forecaster: Justin Brooks ------------------------- Heavy Precipitation Outlook Flash Flood Prediction Program ------------------------- A Very Slight Chance for Isolated Showers and Thunderstorms this Afternoon and Evening Another shallow stratus deck is blanketing The District this morning but will dissipate by the afternoon; This will allow afternoon temperatures to reach the upper 70s with dewpoints in the low to mid 30s. Currently winds are fairly calm and will increase this afternoon and into this evening from the south between 10-20 mph, with gusts up to 40 mph. A slight chance for a few showers and isoalted thunderstorms this afternoon and evening with minimal precipitation expected. The best chance for shower activity will be between 1:00-7:00 PM with skies partially clearing overnight. Overnight lows will drop into the upper 40s to low 50s with winds increasing throughout the day tomorrow. STORM RAINFALL POTENTIAL AND DURATION: Typical showers will produce light rainfall of up to 0.10” total in 15-30 minutes. WORST CASE SCENARIO: A strong thunderstorm has the potential to produce up to 0.20” total rainfall 15-30 minutes. A LOOK AHEAD: Tomorrow will dry out significantly with westerly downsloping winds taking over. Highs will be in the low to mid 60s and dew points in the upper teens, creating zero heavy rain threat for the District. A better chance for showers mid week, however the threat for any heavy rain remains minimal. LOCATION PRIME TIME 30-Minute Rainfall and % Probability Message Potential Plains       Adams 1200 PM TO 800 PM Trace (30%) to 0.1" (15%) to 0.1" (5%) NONE Arapahoe 1200 PM TO 800 PM Trace (30%) to 0.1" (15%) to 0.1" (5%) NONE Boulder 1200 PM TO 800 PM Trace (30%) to 0.1" (15%) to 0.1" (5%) NONE Broomfield 1200 PM TO 800 PM Trace (30%) to 0.1" (15%) to 0.1" (5%) NONE Denver 1200 PM TO 800 PM Trace (30%) to 0.1" (15%) to 0.1" (5%) NONE Douglas 1200 PM TO 800 PM Trace (30%) to 0.1" (15%) to 0.1" (5%) NONE Jefferson 1200 PM TO 800 PM Trace (30%) to 0.1" (15%) to 0.1" (5%) NONE Foothills above 6500ft       Boulder 1200 PM TO 800 PM Trace (40%) to 0.1" (20%) to 0.1" (10%) NONE Douglas 1200 PM TO 800 PM Trace (40%) to 0.1" (20%) to 0.1" (10%) NONE Jefferson 1200 PM TO 800 PM Trace (40%) to 0.1" (20%) to 0.1" (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]