Time: 819 PM Mon May 6, 2019 Forecaster: Brad Simmons

Internal Message Status
Flash Flood Prediction Program

MESSAGE 1'S ISSUED FOR REMAINDER OF DISTRICT/EXTENDED FOR ADAMS COUNTY UNTIL MIDNIGHT
-Message 1's have been issued for the remainder of the District and will be valid through midnight tonight. The previous Message 1 issued for Adams County has been extended to midnight.
-Additional thunderstorms are currently developing over the District and will have the potential for moderate to brief heavy rainfall and hail into the evening.
-Thunderstorms will move from SW to NE at 20-25mph.
STORM RAINFALL POTENTIAL AND DURATION: Thunderstorms will produce 0.3-0.8" in 10-30 minutes.

WORST CASE SCENARIO: An isolated strong/severe thunderstorm stalls along a wind convergence boundary and produces heavy rainfall of up to 1.4" in 45-60 minutes.

County Message Valid Times Prime Time
Lakewood 1 Current TO 1100 PM Current TO 1159 PM
Wheat Ridge 1 Current TO 1100 PM Current TO 1159 PM
Arvada 1 Current TO 1100 PM Current TO 1159 PM
the City of Aurora 1 Current TO 1100 PM Current TO 1159 PM
Arapahoe County 1 Current TO 1100 PM Current TO 1159 PM
DIA 1 Current TO 1100 PM Current TO 1159 PM
Denver County 1 Current TO 1100 PM Current TO 1159 PM
Adams County 1 Current TO 1100 PM Current TO 1159 PM
Douglas County 1 Current TO 1100 PM Current TO 1159 PM
Broomfield County 1 Current TO 1100 PM Current TO 1159 PM
Jefferson County 1 Current TO 1100 PM Current TO 1159 PM
Boulder County 1 Current TO 1100 PM Current TO 1159 PM

County-specific Quantitative
Precipitation Outlook
Precipitation Time 30-Minute Rainfall
and % Probability
Message
Potential
Plains      
Adams Current TO 1159 PM MON
0.1" (80%) to 0.3" (60%) to 0.8" (30%) ISSUED
Arapahoe Current TO 1159 PM MON
0.1" (90%) to 0.3" (65%) to 0.8" (30%) ISSUED
Boulder Current TO 1159 PM MON
0.1" (80%) to 0.3" (60%) to 0.8" (30%) ISSUED
Broomfield Current TO 1159 PM MON
0.1" (90%) to 0.3" (65%) to 0.8" (30%) ISSUED
Denver Current TO 1159 PM MON
0.1" (90%) to 0.3" (65%) to 0.8" (30%) ISSUED
Douglas Current TO 1159 PM MON
0.1" (80%) to 0.3" (60%) to 0.8" (30%) ISSUED
Jefferson Current TO 1159 PM MON
0.1" (80%) to 0.3" (60%) to 0.8" (30%) ISSUED
Foothills above 6500ft      
Boulder Current TO 1159 PM MON
0.1" (80%) to 0.3" (60%) to 0.8" (30%) ISSUED
Douglas Current TO 1159 PM MON
0.1" (80%) to 0.3" (60%) to 0.8" (30%) ISSUED
Jefferson Current TO 1159 PM MON
0.1" (80%) to 0.3" (60%) to 0.8" (30%) ISSUED
MONITOR NATIONAL WEATHER SERVICE FOR SEVERE WEATHER STATEMENTS.