Time: 834 AM Sun June 12, 2022 Forecaster: Justin Brooks ------------------------- Heavy Precipitation Outlook Flash Flood Prediction Program ------------------------- HOT AGAIN WITH A SLIGHT CHANCE FOR AFTERNOON/EARLY EVE HGH-BASED RAIN SHOWERS/ISOLATED THUNDERSTORMS - After reaching the record of 100°F out at DIA yesterday, today will have the same opportunity as highs are projected in the mid to upper 90's this afternoon. The record high for Denver is 97°F which was set back in 1952. There will be a slight chance for high-based afternoon and early evening rain showers/isolated thunderstorms. - Best chance for high-based rain showers/isolated thunderstorms will be between noon and 6pm. Storm motions will be from W/SW to E/NE between 10-15mph which will also help limit any point rainfall amounts. There is a very slight chance storms will become severe, mainly due to high winds of 60mph+ with a better chances the further east of the I-25 corridor. Skies will gradually begin to clear after 6pm. - Overnight lows will drop into the low to mid 60's across the plains with mid to upper 50's along the foothills with mild and dry conditions expected through daybreak Monday. STORM RAINFALL POTENTIAL AND DURATION: Typical rain showers or a weak thunderstorm will produce a trace to 0.1" of rain in 30 minutes or less. A moderate thunderstorm could produce 0.1-0.3" of rainfall in 30 minutes or less. WORST CASE SCENARIO: A stronger, slow-moving thunderstorm is able to develop and will have the potential to produce 0.3-0.8" of rainfall in 45-60 minutes. A LOOK AHEAD: Another hot, breezy day Monday with high temperatures remaining in the 90's with dry conditions expected throughout the day and evening. A cold front moves in Tuesday effectively dropping high temperatures back to a more seasonable low to mid 80's. Not much moisture is associated with the front, which will likely keep conditions dry at this time. Wednesday will jump back into the upper 80's to around 90°F with continued dry conditions. LOCATION PRIME TIME 30-Minute Rainfall and % Probability Message Potential Plains       Adams 1200 PM TO 600 PM Trace (40%) to 0.1" (20%) to 0.3" (10%) NONE Arapahoe 1200 PM TO 600 PM Trace (40%) to 0.1" (20%) to 0.3" (10%) NONE Boulder 1200 PM TO 600 PM Trace (30%) to 0.1" (15%) to 0.3" (5%) NONE Broomfield 1200 PM TO 600 PM Trace (30%) to 0.1" (15%) to 0.3" (5%) NONE Denver 1200 PM TO 600 PM Trace (30%) to 0.1" (15%) to 0.3" (5%) NONE Douglas 1200 PM TO 600 PM Trace (30%) to 0.1" (15%) to 0.3" (5%) NONE Jefferson 1200 PM TO 600 PM Trace (30%) to 0.1" (15%) to 0.3" (5%) NONE Foothills above 6500ft       Boulder 1200 PM TO 600 PM Trace (20%) to 0.1" (10%) to 0.3" (5%) NONE Douglas 1200 PM TO 600 PM Trace (20%) to 0.1" (10%) to 0.3" (5%) NONE Jefferson 1200 PM TO 600 PM Trace (20%) to 0.1" (10%) to 0.3" (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]