Time: 436 PM Sat July 6, 2019 Forecaster: Alan Smith

Internal Message Status
Flash Flood Prediction Program

MESSAGES WILL CONTINUE VALID
-Message 1's will continue valid for the entire District until 10:00pm.
-The earlier round of strong thunderstorms that passed just south of the District have now weakened and moved east. The atmosphere has remained capped over the lower elevations of the District this afternoon, which has limited thunderstorm activity. However, with a couple of hours of heating left, the potential for thunderstorm development will remain across the District.
-Moisture remains elevated with dewpoints well into the 50s. Any storms that develop will be relatively slow-moving to the E/SE at 10-15mph and will be capable of producing heavy rainfall.
STORM RAINFALL POTENTIAL AND DURATION: Thunderstorms will be capable of producing rainfall amounts of 0.4-1.2" in 10-30 minutes.

WORST CASE SCENARIO: A strong/severe thunderstorm produces heavy rainfall of up to 2.5" in 45-60 minutes.

County Message Valid Times Prime Time
the City of Aurora 1 Current TO 1000 PM Current TO 800 PM
Arapahoe County 1 Current TO 1000 PM Current TO 800 PM
DIA 1 Current TO 1000 PM Current TO 800 PM
Denver County 1 Current TO 1000 PM Current TO 800 PM
Adams County 1 Current TO 1000 PM Current TO 800 PM
Douglas County 1 Current TO 1000 PM Current TO 800 PM
Broomfield County 1 Current TO 1000 PM Current TO 800 PM
Jefferson County 1 Current TO 1000 PM Current TO 800 PM
Boulder County 1 Current TO 1000 PM Current TO 800 PM
Arvada 1 Current TO 1000 PM Current TO 800 PM
Wheat Ridge 1 Current TO 1000 PM Current TO 800 PM
Lakewood 1 Current TO 1000 PM Current TO 800 PM

County-specific Quantitative
Precipitation Outlook
Precipitation Time 30-Minute Rainfall
and % Probability
Message
Potential
Plains      
Adams Current TO 1000 PM SAT
0.1" (70%) to 0.4" (40%) to 1.2" (15%) ISSUED
Arapahoe Current TO 1000 PM SAT
0.1" (70%) to 0.4" (40%) to 1.2" (15%) ISSUED
Boulder Current TO 1000 PM SAT
0.1" (70%) to 0.4" (40%) to 1.2" (15%) ISSUED
Broomfield Current TO 1000 PM SAT
0.1" (70%) to 0.4" (40%) to 1.2" (15%) ISSUED
Denver Current TO 1000 PM SAT
0.1" (70%) to 0.4" (40%) to 1.2" (15%) ISSUED
Douglas Current TO 1000 PM SAT
0.1" (70%) to 0.4" (40%) to 1.2" (15%) ISSUED
Jefferson Current TO 1000 PM SAT
0.1" (70%) to 0.4" (40%) to 1.2" (15%) ISSUED
Foothills above 6500ft      
Boulder Current TO 1000 PM SAT
0.1" (70%) to 0.4" (40%) to 1.2" (15%) ISSUED
Douglas Current TO 1000 PM SAT
0.1" (70%) to 0.4" (40%) to 1.2" (15%) ISSUED
Jefferson Current TO 1000 PM SAT
0.1" (70%) to 0.4" (40%) to 1.2" (15%) ISSUED
MONITOR NATIONAL WEATHER SERVICE FOR SEVERE WEATHER STATEMENTS.