Time: 832 PM Mon August 15, 2022 Forecaster: Justin Brooks

Internal Message Status
Flash Flood Prediction Program

MESSAGES FOR THE DISTRICT WILL BE ALLOWED TO EXPIRE AT 8:30 PM
-Message 1's and Message 2's will be allowed to expire at 8:30pm as the threat for heavy rainfall has come to an end. The National Weather Service in Boulder has cancelled the Flood Watch for the foothills and Palmer Divide area at this time. Message 1's will no longer be needed at this time as well.
-A few lingering light to brief moderate rain showers persist over portions of the District and will likely continue through midnight before skies gradually start to clear. Typical showers will produce a trace to 0.2", with isolated higher amounts possible likely due to training of additional rain showers. Showers currently favoring areas south of I-70, however additional rain showers along the Continental Divide could move through the District bring a good chance for another round before midnight.
-As skies clear through the overnight, mild conditions expected through daybreak tomorrow with low dropping into the upper 50's to low 60's on the plains with low to mid 50's along the foothills.
STORM RAINFALL POTENTIAL AND DURATION: Typical rain showers will produce a trace to 0.2" in 10-30 minutes. A moderate rain shower could produce 0.2-0.4" in 10-30 minutes.

WORST CASE SCENARIO: A moderate to strong rain shower/isolated thunderstorm has the potential to produce 0.4-1.2" in 30-60 minutes.

County Message Valid Times Prime Time
the City of Aurora 1 Current TO 1159 PM Current TO 1130 PM
Arapahoe County 1 Current TO 1159 PM Current TO 1130 PM
DIA 1 Current TO 1159 PM Current TO 1130 PM
Denver County 1 Current TO 1159 PM Current TO 1130 PM
Adams County 1 Current TO 1159 PM Current TO 1130 PM
Douglas County 1 Current TO 1159 PM Current TO 1130 PM
Broomfield County 1 Current TO 1159 PM Current TO 1130 PM
Jefferson County 2 Current TO 1159 PM Current TO 1130 PM
Boulder County 2 Current TO 1159 PM Current TO 1130 PM
Arvada 2 Current TO 1159 PM Current TO 1130 PM
Wheat Ridge 2 Current TO 1159 PM Current TO 1130 PM
Lakewood 2 Current TO 1159 PM Current TO 1130 PM

County-specific Quantitative
Precipitation Outlook
Precipitation Time 30-Minute Rainfall
and % Probability
Message
Potential
Plains      
Adams Current TO 1159 PM MON
Trace (50%) to 0.2" (25%) to 0.4" (5%) ISSUED
Arapahoe Current TO 1159 PM MON
Trace (50%) to 0.2" (25%) to 0.4" (5%) ISSUED
Boulder Current TO 1159 PM MON
Trace (50%) to 0.2" (25%) to 0.4" (5%) ISSUED
Broomfield Current TO 1159 PM MON
Trace (50%) to 0.2" (25%) to 0.4" (5%) ISSUED
Denver Current TO 1159 PM MON
Trace (50%) to 0.2" (25%) to 0.4" (5%) ISSUED
Douglas Current TO 1159 PM MON
Trace (60%) to 0.2" (30%) to 0.4" (10%) ISSUED
Jefferson Current TO 1159 PM MON
Trace (60%) to 0.2" (30%) to 0.4" (10%) ISSUED
Foothills above 6500ft      
Boulder Current TO 1159 PM MON
Trace (60%) to 0.2" (30%) to 0.4" (10%) ISSUED
Douglas Current TO 1159 PM MON
Trace (60%) to 0.2" (30%) to 0.4" (10%) ISSUED
Jefferson Current TO 1159 PM MON
Trace (60%) to 0.2" (30%) to 0.4" (10%) ISSUED
MONITOR NATIONAL WEATHER SERVICE FOR SEVERE WEATHER STATEMENTS.
https://f2p2.udfcd.org/generator/