Time: 931 PM Sat July 8, 2023 Forecaster: Laura Smith

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 10:00PM 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. If any storms develop, they are expected to favor eastern portions of the District through 2:00AM. Quick storm motions from northwest to southeast, between 25-35 mph will limit any point rainfall amounts.

Overnight lows will remain in the mid to upper 50’s across most of the District. Warmer daytime temperatures are expected tomorrow as high pressure ridging expands across the Desert Southwest with only a slight chance for showers and thunderstorms Sunday.
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 SUN
Trace (25%) to 0.2" (20%) to 0.4" (15%) NONE
Arapahoe Current TO 600 AM SUN
Trace (20%) to 0.2" (15%) to 0.4" (10%) NONE
Boulder Current TO 600 AM SUN
Trace (20%) to 0.2" (15%) to 0.4" (10%) NONE
Broomfield Current TO 600 AM SUN
Trace (20%) to 0.2" (15%) to 0.4" (10%) NONE
Denver Current TO 600 AM SUN
Trace (20%) to 0.2" (15%) to 0.4" (10%) NONE
Douglas Current TO 600 AM SUN
Trace (20%) to 0.2" (15%) to 0.4" (10%) NONE
Jefferson Current TO 600 AM SUN
Trace (20%) to 0.2" (15%) to 0.4" (10%) NONE
Foothills above 6500ft      
Boulder Current TO 600 AM SUN
Trace (20%) to 0.2" (15%) to 0.4" (10%) NONE
Douglas Current TO 600 AM SUN
Trace (20%) to 0.2" (15%) to 0.4" (10%) NONE
Jefferson Current TO 600 AM SUN
Trace (20%) to 0.2" (15%) to 0.4" (10%) NONE
MONITOR NATIONAL WEATHER SERVICE FOR SEVERE WEATHER STATEMENTS.
https://f2p2.udfcd.org/generator/