Time: 1143 PM Sat May 29, 2021 Forecaster: Justin Brooks ------------------------- Internal Message Status Flash Flood Prediction Program ------------------------- MESSAGE 1'S WILL BE ALLOWED TO EXPIRE AT 11:59 PM - Message 1's will be allowed to expire at 11:59pm as the threat for heavy rain has come to an end. - A few strong late night thunderstorms have moved eastward and out of the District at this time. A few linger light rain showers persist over far eastern and northern portions of the District. A slight chance for scattered off and on rain showers through the overnight and into Sunday morning with no threat for heavy rainfall expected. - Overnight lows will drop into the upper 40's to low 50's with dew points currently in the mid 50's will bring patchy fog in the morning with low-level clouds likely keeping temperatures cool during the morning with more rain showers/isolated thunderstorms possible by midday tomorrow. STORM RAINFALL POTENTIAL AND DURATION: Typical light rain showers will produce a TR-0.1" in 10-30 minutes. A moderate rain shower will produce 0.1-0.3" in 10-30 minutes. WORST CASE SCENARIO: A moderate thunderstorms has the potential to produce 0.3-0.8" in 60-90minutes. COUNTY MESSAGE VALID TIMES PRIME TIME Lakewood 1 Current TO 1159 PM Current TO 1159 PM Wheat Ridge 1 Current TO 1159 PM Current TO 1159 PM Arvada 1 Current TO 1159 PM Current TO 1159 PM the City of Aurora 1 Current TO 1159 PM Current TO 1159 PM Arapahoe County 1 Current TO 1159 PM Current TO 1159 PM DIA 1 Current TO 1159 PM Current TO 1159 PM Denver County 1 Current TO 1159 PM Current TO 1159 PM Adams County 1 Current TO 1159 PM Current TO 1159 PM Douglas County 1 Current TO 1159 PM Current TO 1159 PM Broomfield County 1 Current TO 1159 PM Current TO 1159 PM Jefferson County 1 Current TO 1159 PM Current TO 1159 PM Boulder County 1 Current TO 1159 PM Current TO 1159 PM County-specific Quantitative Precipitation Outlook PRECIPITATION TIME 30-Minute Rainfall and % Probability Message Potential Plains       Adams Current TO 700 AM SUN Trace (30%) to 0.1" (15%) to 0.3" (5%) ISSUED Arapahoe Current TO 700 AM SUN Trace (30%) to 0.1" (15%) to 0.3" (5%) ISSUED Boulder Current TO 700 AM SUN Trace (20%) to 0.1" (10%) to 0.3" (5%) ISSUED Broomfield Current TO 700 AM SUN Trace (20%) to 0.1" (10%) to 0.3" (5%) ISSUED Denver Current TO 700 AM SUN Trace (20%) to 0.1" (10%) to 0.3" (5%) ISSUED Douglas Current TO 700 AM SUN Trace (20%) to 0.1" (10%) to 0.3" (5%) ISSUED Jefferson Current TO 700 AM SUN Trace (20%) to 0.1" (10%) to 0.3" (5%) ISSUED Foothills above 6500ft       Boulder Current TO 700 AM SUN Trace (30%) to 0.1" (15%) to 0.3" (5%) ISSUED Douglas Current TO 700 AM SUN Trace (20%) to 0.1" (10%) to 0.3" (5%) ISSUED Jefferson Current TO 700 AM SUN 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]