Time: 817 AM Tue May 24, 2022 Forecaster: Brad Simmons ------------------------- Heavy Precipitation Outlook Flash Flood Prediction Program ------------------------- CLOUDY/COOL AND SHOWERY OVER THE DISTRICT TODAY - Low pressure system passing to the south will result in cool and cloudy conditions over the District today with periods of rain showers. Highs this afternoon will only warm into the 50's over the plains with 40's in the Front Range foothills. Isolated light rain showers or sprinkles will be possible this morning producing minimal accumulation. - Additional rain showers and even some snow for the higher elevations is expected to develop this afternoon over the foothills with chances for more meaningful rain showers increasing over the plains between 2-4pm. Chances for showers later today will favor areas along and W of I-25 and in particular areas in and near the foothills. Prime time for shower activity over the plains is from 3 or 4pm until 10pm with conditions expected to be drying out by midnight. - The US Army Corps of Engineers will be performing the Cherry Creek flushing exercise today from 9:00 AM to 1:10 PM. Flows will be high at times along Cherry Creek through Denver into the evening. Additional rain shower activity today is not expected to produce much runoff in the Cherry Creek drainage as a whole as the more meaningful precipitation is expected to remain along and W of I-25. A Cherry Creek Trail Flood Advisory will be issued prior to the release as flows may inundate the bike path at times along Cherry Creek. STORM RAINFALL POTENTIAL AND DURATION: Light rain showers will produce a trace to 0.10" in 30-60 minutes. Moderate rain showers will produce 0.1-0.4" of rain in 30-60 minutes. WORST CASE SCENARIO: A weak to moderate thunderstorm is able to develop with the potential to produce 0.2-0.6" of moderate rain in 10-30 minutes. A LOOK AHEAD: After a cool start on Wednesday abundant sunshine will allow temperatures to warm into the upper 60's to lower 70's over the plains during the afternoon. Completely dry conditions are expected District wide. Another warm and dry day in store for Thursday with highs reaching the 80's over the plains under sunny to mostly sunny skies. LOCATION PRIME TIME 60-Minute Rainfall and % Probability Message Potential Plains       Adams Current TO 1159 PM TUE Trace (95%) to 0.2" (50%) to 0.4" (15%) NONE Arapahoe Current TO 1159 PM TUE Trace (95%) to 0.2" (50%) to 0.4" (15%) NONE Boulder Current TO 1159 PM TUE Trace (100%) to 0.2" (60%) to 0.4" (20%) NONE Broomfield Current TO 1159 PM TUE Trace (95%) to 0.2" (50%) to 0.4" (15%) NONE Denver Current TO 1159 PM TUE Trace (95%) to 0.2" (50%) to 0.4" (15%) NONE Douglas Current TO 1159 PM TUE Trace (100%) to 0.2" (60%) to 0.4" (20%) NONE Jefferson Current TO 1159 PM TUE Trace (100%) to 0.2" (60%) to 0.4" (20%) NONE Foothills above 6500ft       Boulder Current TO 1159 PM TUE Trace (100%) to 0.2" (75%) to 0.4" (25%) NONE Douglas Current TO 1159 PM TUE Trace (100%) to 0.2" (75%) to 0.4" (25%) NONE Jefferson Current TO 1159 PM TUE Trace (100%) to 0.2" (75%) to 0.4" (25%) 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]