Time: 857 PM Mon August 12, 2024 Forecaster: Justin Brooks

Internal Message Status
Flash Flood Prediction Program

MESSAGE 2’S & MESSAGE 1’S WILL BE ALLOWED TO EXPIRE AT 9:00 PM
Message 2s and Message 1s will be allowed to expire at 9pm as the threat of heavy rain has come to an end.

A few strong storms clipped southern and eastern portions of the District resulting in some isolated heavy rainfall this afternoon. Storms have since moved onto the eastward plains. A few additional showers could develop over portions of the District late this evening. Movement speeds have increased this evening and convection should remain minimal due to the loss of diurnal heating.

Skies will clear out overnight with temperatures dropping into the upper 50s to low 60s by daybreak tomorrow. Another chance for moderate to heavy rain tomorrow, once again favoring areas east of I-25. Tomorrow could potentially bring a couple of rounds of storms, with a slight chance storms will become severe, including gusty winds and large hail.
STORM RAINFALL POTENTIAL AND DURATION: A shower will produce a trace to 0.10” total in 10-30 minutes.

WORST CASE SCENARIO: A weak thunderstorm will have the potential to produce 0.10”-0.30” total in 10-30 minutes.

County Message Valid Times Prime Time
Lakewood 1 Current TO 900 PM Current TO 900 PM
Wheat Ridge 1 Current TO 900 PM Current TO 900 PM
Arvada 1 Current TO 900 PM Current TO 900 PM
the City of Aurora 2 Current TO 900 PM Current TO 900 PM
Arapahoe County 2 Current TO 900 PM Current TO 900 PM
DIA 2 Current TO 900 PM Current TO 900 PM
Denver County 2 Current TO 900 PM Current TO 900 PM
Adams County 2 Current TO 900 PM Current TO 900 PM
Douglas County 2 Current TO 900 PM Current TO 900 PM
Broomfield County 2 Current TO 900 PM Current TO 900 PM
Jefferson County 2 Current TO 900 PM Current TO 900 PM
Boulder County 2 Current TO 900 PM Current TO 900 PM

County-specific Quantitative
Precipitation Outlook
Precipitation Time 30-Minute Rainfall
and % Probability
Message
Potential
Plains      
Adams Current TO 900 PM MON
Trace (15%) to 0.1" (10%) to 0.3" (5%) ISSUED
Arapahoe Current TO 900 PM MON
Trace (15%) to 0.1" (10%) to 0.3" (5%) ISSUED
Boulder Current TO 900 PM MON
Trace (15%) to 0.1" (10%) to 0.3" (5%) ISSUED
Broomfield Current TO 900 PM MON
Trace (15%) to 0.1" (10%) to 0.3" (5%) ISSUED
Denver Current TO 900 PM MON
Trace (15%) to 0.1" (10%) to 0.3" (5%) ISSUED
Douglas Current TO 900 PM MON
Trace (15%) to 0.1" (10%) to 0.3" (5%) ISSUED
Jefferson Current TO 900 PM MON
Trace (15%) to 0.1" (10%) to 0.3" (5%) ISSUED
Foothills above 6500ft      
Boulder Current TO 900 PM MON
Trace (15%) to 0.1" (10%) to 0.3" (5%) ISSUED
Douglas Current TO 900 PM MON
Trace (15%) to 0.1" (10%) to 0.3" (5%) ISSUED
Jefferson Current TO 900 PM MON
Trace (15%) to 0.1" (10%) to 0.3" (5%) ISSUED
MONITOR NATIONAL WEATHER SERVICE FOR SEVERE WEATHER STATEMENTS.
https://f2p2.udfcd.org/generator/