Time: 946 PM Wed July 5, 2023 Forecaster: Justin Brooks

Internal Message Status
Flash Flood Prediction Program

MESSAGE 1’S WILL BE ALLOWED TO EXPIRE AT 10:00 PM
Message 1’s will be allowed to expire at 10:00 pm as the threat of heavy rain has come to an end.

A few showers and a weak thunderstorm or two will be possible over the next few hours as the tail end of today’s disturbance continues eastward. Storms will favor northern portions of the District through midnight. Quick storm motions from west to east, between 20-30 mph will limit any point rainfall amounts. After midnight, storm chances taper off with a few off and on showers possible through daybreak tomorrow.

Overnight lows will remain in the mid to upper 50’s across most of the District. Temperatures should warm a bit more tomorrow with a better chance of some sunshine during the morning. Warmer daytime temperatures tomorrow will increase storm potential into the afternoon and early evening hours.
STORM RAINFALL POTENTIAL AND DURATION: Typical showers will produce a trace to 0.20” total, in 10-30 minutes. A weak thunderstorm could produce 0.20-0.40” total, in 10-30 minutes.

WORST CASE SCENARIO: A moderate to strong thunderstorm has the potential to produce up to 0.80” total, in 45-60 minutes.

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

County-specific Quantitative
Precipitation Outlook
Precipitation Time 30-Minute Rainfall
and % Probability
Message
Potential
Plains      
Adams Current TO 600 AM THU
Trace (75%) to 0.2" (40%) to 0.4" (20%) NONE
Arapahoe Current TO 600 AM THU
Trace (60%) to 0.2" (30%) to 0.4" (15%) NONE
Boulder Current TO 600 AM THU
Trace (75%) to 0.2" (40%) to 0.4" (20%) NONE
Broomfield Current TO 600 AM THU
Trace (75%) to 0.2" (40%) to 0.4" (20%) NONE
Denver Current TO 600 AM THU
Trace (70%) to 0.2" (35%) to 0.4" (15%) NONE
Douglas Current TO 600 AM THU
Trace (60%) to 0.2" (30%) to 0.4" (15%) NONE
Jefferson Current TO 600 AM THU
Trace (70%) to 0.2" (35%) to 0.4" (15%) NONE
Foothills above 6500ft      
Boulder Current TO 600 AM THU
Trace (75%) to 0.2" (50%) to 0.4" (20%) NONE
Douglas Current TO 600 AM THU
Trace (60%) to 0.2" (30%) to 0.4" (15%) NONE
Jefferson Current TO 600 AM THU
Trace (70%) to 0.2" (40%) to 0.4" (15%) NONE
MONITOR NATIONAL WEATHER SERVICE FOR SEVERE WEATHER STATEMENTS.
https://f2p2.udfcd.org/generator/