Time: 1023 AM Sat May 11, 2019 Forecaster: Justin Brooks

Heavy Precipitation Outlook
Flash Flood Prediction Program

WARMER TODAY WITH A CHANCE OF AN ISOLATED HIGH BASED SHOWER/THUNDERSTORM
-High-pressure begins to build today resulting in sunny skies early with warmer conditions as high temperatures reach the mid 60's. A midday cold front from the north will push its way down bringing gusty wind up to 25mph and a chance for isolated "high based" rain showers and possibly a weak thunderstorm.
-Showers and weak thunderstorms that manage to develop will produce minimal rain, most likely light showers and gusty winds. Storms will move from N/NW to S/SE at 15-20mph. Best chances for showers will be over eastern areas of the District between 2-8pm.
-Dry conditions can be expected through the overnight period.
STORM RAINFALL POTENTIAL AND DURATION: Isolated rain showers or a weak thunderstorm will produce a trace to 0.1" in 10-30min.

WORST CASE SCENARIO: An isolated moderate thunderstorm or training of weak thunderstorms will produce 0.1-0.4" in 60-90min.

A LOOK AHEAD: High-pressure will dominate over the region Sunday, bringing even warmer temperatures in the low 70's with dry conditions expected throughout the day.

Location Prime Time 30-Minute Rainfall
and % Probability
Message
Potential
Plains      
Adams 200 PM TO 800 PM
Trace (50%) to 0.1" (15%) to 0.2" (5%) NONE
Arapahoe 200 PM TO 800 PM
Trace (50%) to 0.1" (15%) to 0.2" (5%) NONE
Boulder 200 PM TO 800 PM
Trace (30%) to 0.1" (10%) to 0.2" (5%) NONE
Broomfield 200 PM TO 800 PM
Trace (40%) to 0.1" (10%) to 0.2" (5%) NONE
Denver 200 PM TO 800 PM
Trace (40%) to 0.1" (10%) to 0.2" (5%) NONE
Douglas 200 PM TO 800 PM
Trace (40%) to 0.1" (10%) to 0.2" (5%) NONE
Jefferson 200 PM TO 800 PM
Trace (30%) to 0.1" (10%) to 0.2" (5%) NONE
Foothills above 6500ft      
Boulder 200 PM TO 800 PM
Trace (30%) to 0.1" (10%) to 0.2" (5%) NONE
Douglas 200 PM TO 800 PM
Trace (30%) to 0.1" (10%) to 0.2" (5%) NONE
Jefferson 200 PM TO 800 PM
Trace (30%) to 0.1" (10%) to 0.2" (5%) NONE
MONITOR NATIONAL WEATHER SERVICE FOR SEVERE WEATHER STATEMENTS.