Time: 901 PM Sun June 30, 2019 Forecaster: Nick Barlow

Internal Message Status
Flash Flood Prediction Program

MESSAGES WILL BE ALLOWED TO EXPIRE AT 10:00PM
-Message 1's issued for the entire District will be allowed to expire at 10:00pm, as the threat for heavy rainfall has come to an end.
-It was an active afternoon and early evening across portions of NE Colorado, due to an influx of mid/upper-level moisture and a well-timed cold front dropping out of Wyoming. The atmosphere has largely stabilized at this hour, and thunderstorms capable of heavy rainfall are no longer expected.
-Additional showers and perhaps a weak thunderstorm remain possible through about midnight over the District.
STORM RAINFALL POTENTIAL AND DURATION: Showers and isolated thunderstorms will produce rainfall amounts between 0.05-0.25" in 10-30 minutes.

WORST CASE SCENARIO: An isolated stronger thunderstorm produces up to 0.60" in 45-75 minutes.

County Message Valid Times Prime Time
Adams County 1 Current TO 1000 PM Current TO 1000 PM
Douglas County 1 Current TO 1000 PM Current TO 1000 PM
Broomfield County 1 Current TO 1000 PM Current TO 1000 PM
Jefferson County 1 Current TO 1000 PM Current TO 1000 PM
Boulder 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 1200 AM MON
Trace (80%) to 0.1" (70%) to 0.3" (15%) ISSUED
Arapahoe Current TO 1200 AM MON
Trace (80%) to 0.1" (70%) to 0.3" (15%) ISSUED
Boulder Current TO 1200 AM MON
Trace (70%) to 0.1" (50%) to 0.3" (10%) ISSUED
Broomfield Current TO 1200 AM MON
Trace (70%) to 0.1" (50%) to 0.3" (10%) ISSUED
Denver Current TO 1200 AM MON
Trace (80%) to 0.1" (70%) to 0.3" (15%) ISSUED
Douglas Current TO 1200 AM MON
Trace (70%) to 0.1" (50%) to 0.3" (10%) ISSUED
Jefferson Current TO 1200 AM MON
Trace (70%) to 0.1" (50%) to 0.3" (10%) ISSUED
Foothills above 6500ft      
Boulder Current TO 1200 AM MON
Trace (90%) to 0.1" (75%) to 0.3" (20%) ISSUED
Douglas Current TO 1200 AM MON
Trace (70%) to 0.1" (50%) to 0.3" (10%) ISSUED
Jefferson Current TO 1200 AM MON
Trace (90%) to 0.1" (75%) to 0.3" (20%) ISSUED
MONITOR NATIONAL WEATHER SERVICE FOR SEVERE WEATHER STATEMENTS.