Time: 102 AM Wed July 27, 2022 Forecaster: Brad Simmons ------------------------- Internal Message Status Flash Flood Prediction Program ------------------------- MESSAGE 1'S WILL BE ALLOWED TO EXPIRE AT 2:00 AM - Message 1's will be allowed to expire at 2:00 AM as the threat for heavy rainfall has ended for the remainder of the overnight period. - Multiple rounds of moderate to strong thunderstorms moved through the District this afternoon and evening producing brief heavy rainfall and isolated areas of hail in tandem with heavy rain. Thunderstorms have currently diminished with a few light rain showers remaining possible through the overnight period. - Isolated rain shower activity will continue to taper off with additional rainfall amounts generally less than 0.1". With abundant moisture in place, thunderstorms will once again have the potential to produce heavy rainfall Wednesday afternoon and evening. In areas that experienced heavy rainfall today it may not take as much rain to produce excessive runoff on Wednesday. STORM RAINFALL POTENTIAL AND DURATION: Isolated light rain showers will produce a a trace to 0.1" of rain or less. WORST CASE SCENARIO: A weak to moderate thunderstorm is able to develop with the potential to produce 0.2-0.6" in 10-30 minutes. COUNTY MESSAGE VALID TIMES PRIME TIME Boulder County 1 Current TO 200 AM Current TO 115 AM Jefferson County 1 Current TO 200 AM Current TO 115 AM Broomfield County 1 Current TO 200 AM Current TO 115 AM Douglas County 1 Current TO 200 AM Current TO 115 AM Adams County 1 Current TO 200 AM Current TO 115 AM Denver County 1 Current TO 200 AM Current TO 115 AM DIA 1 Current TO 200 AM Current TO 115 AM Arapahoe County 1 Current TO 200 AM Current TO 115 AM the City of Aurora 1 Current TO 200 AM Current TO 115 AM Arvada 1 Current TO 200 AM Current TO 115 AM Wheat Ridge 1 Current TO 200 AM Current TO 115 AM Lakewood 1 Current TO 200 AM Current TO 115 AM MONITOR NATIONAL WEATHER SERVICE FOR SEVERE WEATHER STATEMENTS. MHFD Flood Prediction Center: 303-458-0789    F2P2 Website [http://udfcd.org/Flash+Flood+Prediction+Program]