Flash Flood Prediction Program

Time: 1115 PM Sun August 14, 2022 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 11:59 PM as the threat for heavy rainfall has come to an end. - A few light to moderate rain showers persist over portions of the District at this time and will continue over the next few hours before tapering off before daybreak Monday. - Overnight lows will drop into the low to mid 60's with a few areas of patchy fog possible as an abundance of moisture remains at the surface. STORM RAINFALL POTENTIAL AND DURATION: Typical rain showers will produce a trace to 0.2" of rainfall in 10-30 minutes. A moderate rain shower/thunderstorms could produce 0.2-0.5" in 10-30 minutes. WORST CASE SCENARIO: A moderate to strong thunderstorm has the potential to produce 0.5-1.5" of rainfall in 45-75 minutes. COUNTY MESSAGE VALID TIMES PRIME TIME Boulder County 1 Current TO 500 AM MONDAY Current TO 500 AM MONDAY Jefferson County 1 Current TO 500 AM MONDAY Current TO 500 AM MONDAY Broomfield County 1 Current TO 500 AM MONDAY Current TO 500 AM MONDAY Douglas County 1 Current TO 500 AM MONDAY Current TO 500 AM MONDAY Adams County 1 Current TO 500 AM MONDAY Current TO 500 AM MONDAY Denver County 1 Current TO 500 AM MONDAY Current TO 500 AM MONDAY DIA 1 Current TO 500 AM MONDAY Current TO 500 AM MONDAY Arapahoe County 1 Current TO 500 AM MONDAY Current TO 500 AM MONDAY the City of Aurora 1 Current TO 500 AM MONDAY Current TO 500 AM MONDAY Arvada 1 Current TO 500 AM MONDAY Current TO 500 AM MONDAY Wheat Ridge 1 Current TO 500 AM MONDAY Current TO 500 AM MONDAY Lakewood 1 Current TO 500 AM MONDAY Current TO 500 AM MONDAY County-specific Quantitative Precipitation Outlook PRECIPITATION TIME 30-Minute Rainfall and % Probability Message Potential Plains       Adams Current TO 500 AM MON Trace (40%) to 0.2" (20%) to 0.5" (5%) NONE Arapahoe Current TO 500 AM MON Trace (40%) to 0.2" (20%) to 0.5" (5%) NONE Boulder Current TO 500 AM MON Trace (30%) to 0.2" (15%) to 0.5" (5%) NONE Broomfield Current TO 500 AM MON Trace (30%) to 0.2" (15%) to 0.5" (5%) NONE Denver Current TO 500 AM MON Trace (30%) to 0.2" (15%) to 0.5" (5%) NONE Douglas Current TO 500 AM MON Trace (30%) to 0.2" (15%) to 0.5" (5%) NONE Jefferson Current TO 500 AM MON Trace (30%) to 0.2" (15%) to 0.5" (5%) NONE Foothills above 6500ft       Boulder Current TO 500 AM MON Trace (40%) to 0.2" (20%) to 0.5" (5%) NONE Douglas Current TO 500 AM MON Trace (30%) to 0.2" (15%) to 0.5" (5%) NONE Jefferson Current TO 500 AM MON Trace (30%) to 0.2" (15%) to 0.5" (5%) 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]