Time: 828 PM Tue May 7, 2019 Forecaster: Nick Barlow

Internal Message Status
Flash Flood Prediction Program

MESSAGE 1'S WILL BE ALLOWED TO EXPIRE AT 9:00PM
-Message 1's issued for the entire District will be allowed to expire at 9:00pm, as the threat for heavy rainfall has come to an end.
-With the loss of daytime heating, thunderstorms capable of producing heavy rainfall are no longer expected this evening and overnight.
-With a nearby trough of low pressure currently spinning over New Mexico, additional showers and weak thunderstorms remain possible into the early-overnight period.
STORM RAINFALL POTENTIAL AND DURATION: Rain showers will produce rainfall amounts of Trace-0.10" in 10-30 minutes. Thunderstorms will produce rainfall amounts of 0.10-0.30" in 10-30 minutes.

WORST CASE SCENARIO: An isolated, stronger thunderstorm produces rainfall up to 0.50" in 25-50 minutes.

County Message Valid Times Prime Time
Boulder County 1 Current TO 900 PM Current TO 900 PM
Jefferson County 1 Current TO 900 PM Current TO 900 PM
Broomfield County 1 Current TO 900 PM Current TO 900 PM
Douglas County 1 Current TO 900 PM Current TO 900 PM
Adams County 1 Current TO 900 PM Current TO 900 PM
Denver County 1 Current TO 900 PM Current TO 900 PM
DIA 1 Current TO 900 PM Current TO 900 PM
Arapahoe County 1 Current TO 900 PM Current TO 900 PM
the City of Aurora 1 Current TO 900 PM Current TO 900 PM
Arvada 1 Current TO 900 PM Current TO 900 PM
Wheat Ridge 1 Current TO 900 PM Current TO 900 PM
Lakewood 1 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 1200 AM WED
Trace (80%) to 0.2" (40%) to 0.4" (10%) ISSUED
Arapahoe Current TO 1200 AM WED
Trace (80%) to 0.2" (40%) to 0.4" (10%) ISSUED
Boulder Current TO 1200 AM WED
Trace (80%) to 0.2" (40%) to 0.4" (10%) ISSUED
Broomfield Current TO 1200 AM WED
Trace (80%) to 0.2" (40%) to 0.4" (10%) ISSUED
Denver Current TO 1200 AM WED
Trace (80%) to 0.2" (40%) to 0.4" (10%) ISSUED
Douglas Current TO 1200 AM WED
Trace (80%) to 0.2" (50%) to 0.4" (10%) ISSUED
Jefferson Current TO 1200 AM WED
Trace (80%) to 0.2" (50%) to 0.4" (10%) ISSUED
Foothills above 6500ft      
Boulder Current TO 1200 AM WED
Trace (80%) to 0.2" (40%) to 0.4" (10%) ISSUED
Douglas Current TO 1200 AM WED
Trace (80%) to 0.2" (50%) to 0.4" (20%) ISSUED
Jefferson Current TO 1200 AM WED
Trace (80%) to 0.2" (50%) to 0.4" (20%) ISSUED
MONITOR NATIONAL WEATHER SERVICE FOR SEVERE WEATHER STATEMENTS.