Time: 502 PM Tue August 16, 2022 Forecaster: Justin Brooks

Internal Message Status
Flash Flood Prediction Program

MESSAGE 1'S WILL BE ALLOWED TO EXPIRE AT 6:00 PM
-Message 1's will be allowed to expire at 6:00pm as the threat for heavy rainfall has come to an end at this time.
-A few lingering rain showers currently along the Continental and Palmer Divide which are bringing between a trace and 0.2" of rainfall in 10-30 minutes. These showers will likely hang around over the next several hours before tapering off, keeping a chance across the District for light to brief moderate rainfall through 2am Wednesday.
-Cooler temperatures currently around 70 degrees should help limit any rainfall potential, however with dew points in the upper 50's to around 60 degrees combined with a weak front moving in from the N/NE later this evening, any rain showers could potentially produce strong rainfall at times resulting in a LOW threat for Messages 1 to be reissued this evening.
STORM RAINFALL POTENTIAL AND DURATION: Typical rain showers will produce a trace to 0.2" in 10-30 minutes. A moderate to strong rain shower could produce 0.2-0.6" in 10-30 minutes.

WORST CASE SCENARIO: A moderate to strong rain shower/isolated thunderstorm has the potential to produce 0.6-1.8" in 30-60 minutes.

County Message Valid Times Prime Time
Boulder County 1 Current TO 600 PM Current TO 600 PM
Jefferson County 1 Current TO 600 PM Current TO 600 PM
Broomfield County 1 Current TO 600 PM Current TO 600 PM
Douglas County 1 Current TO 600 PM Current TO 600 PM
Adams County 1 Current TO 600 PM Current TO 600 PM
Denver County 1 Current TO 600 PM Current TO 600 PM
DIA 1 Current TO 600 PM Current TO 600 PM
Arapahoe County 1 Current TO 600 PM Current TO 600 PM
the City of Aurora 1 Current TO 600 PM Current TO 600 PM
Arvada 1 Current TO 600 PM Current TO 600 PM
Wheat Ridge 1 Current TO 600 PM Current TO 600 PM
Lakewood 1 Current TO 600 PM Current TO 600 PM

County-specific Quantitative
Precipitation Outlook
Precipitation Time 30-Minute Rainfall
and % Probability
Message
Potential
Plains      
Adams Current TO 200 AM WED
Trace (30%) to 0.2" (20%) to 0.6" (10%) LOW
Arapahoe Current TO 200 AM WED
Trace (30%) to 0.2" (20%) to 0.6" (10%) LOW
Boulder Current TO 200 AM WED
Trace (30%) to 0.2" (20%) to 0.6" (10%) LOW
Broomfield Current TO 200 AM WED
Trace (30%) to 0.2" (20%) to 0.6" (10%) LOW
Denver Current TO 200 AM WED
Trace (30%) to 0.2" (20%) to 0.6" (10%) LOW
Douglas Current TO 200 AM WED
Trace (30%) to 0.2" (20%) to 0.6" (10%) LOW
Jefferson Current TO 200 AM WED
Trace (30%) to 0.2" (20%) to 0.6" (10%) LOW
Foothills above 6500ft      
Boulder Current TO 200 AM WED
Trace (40%) to 0.2" (30%) to 0.6" (15%) LOW
Douglas Current TO 200 AM WED
Trace (40%) to 0.2" (30%) to 0.6" (15%) LOW
Jefferson Current TO 200 AM WED
Trace (40%) to 0.2" (30%) to 0.6" (15%) LOW
MONITOR NATIONAL WEATHER SERVICE FOR SEVERE WEATHER STATEMENTS.
https://f2p2.udfcd.org/generator/