Time: 1059 PM Thu June 8, 2023 Forecaster: Justin Brooks ------------------------- Internal Message Status Flash Flood Prediction Program ------------------------- MESSAGE 1'S WILL BE ALLOWED TO EXPIRE AT 1159PM Message 1’s will be allowed to expire at 11:59 PM as the threat of heavy rainfall has ended for the day. A few lingering showers and rumbles of thunder for eastern portions of the District currently. These showers will slowly taper off further east and onto the plains with no more threat of heavy rainfall for the rest of the evening and through the overnight. Skies will gradually clear through the overnight, with a few areas of fog during the morning hours, especially along low-lying areas. Overnight lows will drop into the low to mid 50’s for the plains with upper 40’s to around 50 along the foothills. STORM RAINFALL POTENTIAL AND DURATION: Typical rain showers will produce a trace to 0.1” in 10-30 minutes. WORST CASE SCENARIO: A moderate shower will produce 0.1-0.3" in 60 minutes. COUNTY MESSAGE VALID TIMES PRIME TIME Boulder County 1 Current TO 1159 PM Current TO 1100 PM Jefferson County 1 Current TO 1159 PM Current TO 1100 PM Broomfield County 1 Current TO 1159 PM Current TO 1100 PM Douglas County 1 Current TO 1159 PM Current TO 1100 PM Adams County 1 Current TO 1159 PM Current TO 1100 PM Denver County 1 Current TO 1159 PM Current TO 1100 PM DIA 1 Current TO 1159 PM Current TO 1100 PM Arapahoe County 1 Current TO 1159 PM Current TO 1100 PM the City of Aurora 1 Current TO 1159 PM Current TO 1100 PM Arvada 1 Current TO 1159 PM Current TO 1100 PM Wheat Ridge 1 Current TO 1159 PM Current TO 1100 PM Lakewood 1 Current TO 1159 PM Current TO 1100 PM County-specific Quantitative Precipitation Outlook PRECIPITATION TIME 30-Minute Rainfall and % Probability Message Potential Plains       Adams Current TO 1159 PM THU Trace (20%) to 0.1" (10%) to 0.3" (5%) ISSUED Arapahoe Current TO 1159 PM THU Trace (20%) to 0.1" (10%) to 0.3" (5%) ISSUED Boulder Current TO 1159 PM THU Trace (20%) to 0.1" (10%) to 0.3" (5%) ISSUED Broomfield Current TO 1159 PM THU Trace (20%) to 0.1" (10%) to 0.3" (5%) ISSUED Denver Current TO 1159 PM THU Trace (20%) to 0.1" (10%) to 0.3" (5%) ISSUED Douglas Current TO 1159 PM THU Trace (20%) to 0.1" (10%) to 0.3" (5%) ISSUED Jefferson Current TO 1159 PM THU Trace (20%) to 0.1" (10%) to 0.3" (5%) ISSUED Foothills above 6500ft       Boulder Current TO 1159 PM THU Trace (20%) to 0.1" (10%) to 0.3" (5%) ISSUED Douglas Current TO 1159 PM THU Trace (20%) to 0.1" (10%) to 0.3" (5%) ISSUED Jefferson Current TO 1159 PM THU Trace (20%) to 0.1" (10%) to 0.3" (5%) 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]