Time: 601 PM Sun July 24, 2022 Forecaster: Justin Brooks ------------------------- Internal Message Status Flash Flood Prediction Program ------------------------- MESSAGES CONTINUE VALID AT THIS TIME - Message 1's and Message 2's (NWS Flood/Flash Flood Watch) for Boulder and Douglas Counties and will be valid until 10:00 PM. Message 1's remain in effect for the remainder of the District and will also be valid until 10:00 PM. - Widespread rain showers and thunderstorms impacted the District this afternoon and early evening and have since moved out onto the eastern plains. Scattered rain showers will persist over portions of the District over the next few hours before clearing out through the overnight. Most rain showers will be minimal, however a few isolated moderate to brief heavy rain showers cannot be completely ruled out, favoring southern portions of the District at this time. - Temperatures have cooled into the mid to upper 60's and will drop into the upper 50's to low 60's through the overnight with a chance for isolated foggy conditions by daybreak tomorrow. STORM RAINFALL POTENTIAL AND DURATION: Weak thunderstorms will produce 0.1-0.3" in 10-30 minutes. Moderate to strong thunderstorms will have the potential to produce rainfall rates of 0.3-0.9" in 10-30 minutes. WORST CASE SCENARIO: A large thunderstorm complex or a slower moving large thunderstorm may result in rainfall rates of 0.9-1.5" in 10-30 minutes and up to 2.0" in 45-75 minutes. COUNTY MESSAGE VALID TIMES PRIME TIME the City of Aurora 1 Current TO 1000 PM Current TO 900 PM Arapahoe County 1 Current TO 1000 PM Current TO 900 PM DIA 1 Current TO 1000 PM Current TO 900 PM Denver County 1 Current TO 1000 PM Current TO 900 PM Douglas County 1 Current TO 1000 PM Current TO 900 PM Adams County 1 Current TO 1000 PM Current TO 900 PM Broomfield County 1 Current TO 1000 PM Current TO 900 PM Arvada 1 Current TO 1000 PM Current TO 900 PM Jefferson County 1 Current TO 1000 PM Current TO 900 PM Boulder County 1 Current TO 1000 PM Current TO 900 PM Wheat Ridge 1 Current TO 1000 PM Current TO 900 PM Lakewood 1 Current TO 1000 PM Current TO 900 PM County-specific Quantitative Precipitation Outlook PRECIPITATION TIME 30-Minute Rainfall and % Probability Message Potential Plains       Adams Current TO 1000 PM SUN 0.1" (90%) to 0.3" (60%) to 0.9" (30%) ISSUED Arapahoe Current TO 1000 PM SUN 0.1" (90%) to 0.3" (60%) to 0.9" (30%) ISSUED Boulder Current TO 1000 PM SUN 0.1" (90%) to 0.3" (60%) to 0.9" (30%) ISSUED Broomfield Current TO 1000 PM SUN 0.1" (90%) to 0.3" (60%) to 0.9" (30%) ISSUED Denver Current TO 1000 PM SUN 0.1" (90%) to 0.3" (60%) to 0.9" (30%) ISSUED Douglas Current TO 1000 PM SUN 0.1" (90%) to 0.3" (60%) to 0.9" (30%) ISSUED Jefferson Current TO 1000 PM SUN 0.1" (90%) to 0.3" (60%) to 0.9" (30%) ISSUED Foothills above 6500ft       Boulder Current TO 1000 PM SUN 0.1" (90%) to 0.3" (60%) to 0.9" (30%) ISSUED Douglas Current TO 1000 PM SUN 0.1" (90%) to 0.3" (60%) to 0.9" (30%) ISSUED Jefferson Current TO 1000 PM SUN 0.1" (90%) to 0.3" (60%) to 0.9" (30%) ISSUED MONITOR NATIONAL WEATHER SERVICE FOR SEVERE WEATHER STATEMENTS. MHFD Flood Prediction Center: 303-458-0789    F2P2 Website [http://udfcd.org/Flash+Flood+Prediction+Program]