Time: 702 PM Fri August 5, 2022 Forecaster: Justin Brooks ------------------------- Internal Message Status Flash Flood Prediction Program ------------------------- MESSAGE 1'S WILL BE ALLOWED TO EXPIRE AT 9:00 PM - Message 1's will be allowed to expire at 9:00 PM as the threat for heavy rainfall has ended for the day. - A few thunderstorms blossomed over south and eastern areas of the District this afternoon with generally quiet conditions along the I-25 corridor westward to the base of the foothills. The boundary that produced storms has made it eastward and out of the District. A slight chance for additional rain showers over the next couple of hours before skies gradually clear through the overnight. - Overnight lows will dip into the upper 50's to low 60's with dry conditions expected through midday tomorrow. STORM RAINFALL POTENTIAL AND DURATION: Typical rain showers will produce a trace to 0.1" in 10-30 minutes. A moderate rain shower/weak thunderstorm will be able to produce 0.1-0.3" in 10-30 minutes. WORST CASE SCENARIO: A stronger thunderstorm has the potential to produce 0.3-0.9" in 30-60 minutes. COUNTY MESSAGE VALID TIMES PRIME TIME Arvada 1 Current TO 900 PM Current TO 800 PM Wheat Ridge 1 Current TO 900 PM Current TO 800 PM Lakewood 1 Current TO 900 PM Current TO 800 PM the City of Aurora 1 Current TO 900 PM Current TO 800 PM Arapahoe County 1 Current TO 900 PM Current TO 800 PM Denver County 1 Current TO 900 PM Current TO 800 PM DIA 1 Current TO 900 PM Current TO 800 PM Douglas County 1 Current TO 900 PM Current TO 800 PM Adams County 1 Current TO 900 PM Current TO 800 PM Broomfield County 1 Current TO 900 PM Current TO 800 PM Jefferson County 1 Current TO 900 PM Current TO 800 PM Boulder County 1 Current TO 900 PM Current TO 800 PM County-specific Quantitative Precipitation Outlook PRECIPITATION TIME 30-Minute Rainfall and % Probability Message Potential Plains       Adams Current TO 900 PM FRI Trace (30%) to 0.1" (15%) to 0.3" (5%) NONE Arapahoe Current TO 900 PM FRI Trace (30%) to 0.1" (15%) to 0.3" (5%) NONE Boulder Current TO 900 PM FRI Trace (30%) to 0.1" (15%) to 0.3" (5%) NONE Broomfield Current TO 900 PM FRI Trace (30%) to 0.1" (15%) to 0.3" (5%) NONE Denver Current TO 900 PM FRI Trace (30%) to 0.1" (15%) to 0.3" (5%) NONE Douglas Current TO 900 PM FRI Trace (30%) to 0.1" (15%) to 0.3" (5%) NONE Jefferson Current TO 900 PM FRI Trace (30%) to 0.1" (15%) to 0.3" (5%) NONE Foothills above 6500ft       Boulder Current TO 900 PM FRI Trace (40%) to 0.1" (20%) to 0.3" (10%) NONE Douglas Current TO 900 PM FRI Trace (40%) to 0.1" (20%) to 0.3" (10%) NONE Jefferson Current TO 900 PM FRI Trace (40%) to 0.1" (20%) 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]