Time: 833 AM Wed August 31, 2022 Forecaster: Justin Brooks ------------------------- Heavy Precipitation Outlook Flash Flood Prediction Program ------------------------- HOT WITH A CHANCE FOR HIGH-BASED AFTERNOON/EVE RAIN SHOWERS/ISOLATED THUNDERSTORMS - High-pressure still dominates over the region today leading to another hot day as high temperatures reach the low 90's this afternoon. A weak disturbance will move through today bringing a slight chance for a few high-based rain showers/isolated thunderstorms. Some of these showers/thunderstorms already present over NE portions of the state, and should stay east of the District through the rest of the morning. - Additional storms will likely initiate between 1-3pm this afternoon as the disturbance moves into the region. Typical storm movements will be from NW to SE between 10-15mph helping limit point rainfall amounts, however, a gust front could initiate additional, stationary storms which could potentially increase chances for moderate to brief heavy rainfall today. Storm chances will continue through 8pm before skies start to clear through the rest of the evening. - Mild and dry conditions are expected through the overnight as lows drop into the upper 50's to low 60's across the plains with low to mid 50's along the foothills. STORM RAINFALL POTENTIAL AND DURATION: Typical rain showers/isolated thunderstorms will produce a trace to 0.1" in 10-30 minutes. A moderate rain showers/isolated thunderstorm could produce 0.1-0.3" in 10-30 minutes. WORST CASE SCENARIO: An anchored rain shower/thunderstorm, or training of thunderstorm cells has the potential to produce 0.3-1.2" in 45-75 minutes. A LOOK AHEAD: High-pressure holds through the rest of the week leading to mostly hot and dry conditions into the weekend. A very slight chance Thursday for another round of high-based shower activity, mainly along the foothills and Palmer Divide at this time. Friday remain hot and dry with highs in the 90's. Similar conditions both Saturday and Sunday with highs in the 90's along with continued dry conditions. LOCATION PRIME TIME 30-Minute Rainfall and % Probability Message Potential Plains       Adams 200 PM TO 800 PM Trace (30%) to 0.1" (20%) to 0.3" (10%) NONE Arapahoe 200 PM TO 800 PM Trace (30%) to 0.1" (20%) to 0.3" (10%) NONE Boulder 200 PM TO 800 PM Trace (30%) to 0.1" (20%) to 0.3" (10%) NONE Broomfield 200 PM TO 800 PM Trace (30%) to 0.1" (20%) to 0.3" (10%) NONE Denver 200 PM TO 800 PM Trace (30%) to 0.1" (20%) to 0.3" (10%) NONE Douglas 200 PM TO 800 PM Trace (30%) to 0.1" (20%) to 0.3" (10%) NONE Jefferson 200 PM TO 800 PM Trace (30%) to 0.1" (20%) to 0.3" (10%) NONE Foothills above 6500ft       Boulder 200 PM TO 800 PM Trace (40%) to 0.1" (20%) to 0.3" (10%) NONE Douglas 200 PM TO 800 PM Trace (40%) to 0.1" (20%) to 0.3" (10%) NONE Jefferson 200 PM TO 800 PM 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]