Time: 647 PM Tue August 1, 2023 Forecaster: Justin Brooks

Internal Message Status
Flash Flood Prediction Program

MESSAGE 2’S CONTINUE VALID UNTIL MIDNIGHT
Message 2’s will remain valid until midnight, although the strongest storm development has moved well east of the District at this time. A few showers persist towards the northwestern portions of the District and will continue to slowly progress eastward over the next few hours. Rainfall rates have decreased, however elevated surface dew points suggest even moderate showers can produce brief heavy rainfall. Storms should gradually weaken through the rest of the evening, with off and on light showers possible through the overnight.
STORM RAINFALL POTENTIAL AND DURATION: Typical rain showers, weak thunderstorms will produce a 0.05-0.25” total in 10-30 minute. A moderate to strong thunderstorm will produce 0.25-1.00” total in 10-30 minutes.

WORST CASE SCENARIO: A strong, anchored thunderstorm will have the potential to produce 2.00” in 45-60 minutes.

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

County-specific Quantitative
Precipitation Outlook
Precipitation Time 30-Minute Rainfall
and % Probability
Message
Potential
Plains      
Adams Current TO 1159 PM TUE
0.05" (50%) to 0.25" (25%) to 1" (10%) ISSUED
Arapahoe Current TO 1159 PM TUE
0.05" (50%) to 0.25" (25%) to 1" (10%) ISSUED
Boulder Current TO 1159 PM TUE
0.05" (60%) to 0.25" (30%) to 1" (15%) ISSUED
Broomfield Current TO 1159 PM TUE
0.05" (60%) to 0.25" (30%) to 1" (15%) ISSUED
Denver Current TO 1159 PM TUE
0.05" (50%) to 0.25" (25%) to 1" (10%) ISSUED
Douglas Current TO 1159 PM TUE
0.05" (50%) to 0.25" (25%) to 1" (10%) ISSUED
Jefferson Current TO 1159 PM TUE
0.05" (50%) to 0.25" (25%) to 1" (10%) ISSUED
Foothills above 6500ft      
Boulder Current TO 1159 PM TUE
0.05" (60%) to 0.25" (30%) to 1" (15%) ISSUED
Douglas Current TO 1159 PM TUE
0.05" (50%) to 0.25" (25%) to 1" (10%) ISSUED
Jefferson Current TO 1159 PM TUE
0.05" (50%) to 0.25" (25%) to 1" (10%) ISSUED
MONITOR NATIONAL WEATHER SERVICE FOR SEVERE WEATHER STATEMENTS.
https://f2p2.udfcd.org/generator/