Time: 916 AM Mon September 9, 2019 Forecaster: Nick Barlow

Heavy Precipitation Outlook
Flash Flood Prediction Program

WARMER WITH GENERALLY-DRY CONDITIONS EXPECTED
-SW flow aloft builds into the Rockies on Monday behind Sunday’s potent trough of low pressure. Patchy fog and low clouds this morning will give way to mostly-sunny skies by afternoon.
-Dry conditions will prevail throughout the afternoon and early-evening hours, with highs topping out in the mid to upper 80s.
-There is a slight chance for a stray shower or thunderstorm during the late-evening and overnight period favoring the northern portions of the District, but most areas will remain dry.
STORM RAINFALL POTENTIAL AND DURATION: Weak overnight showers and isolated thunderstorms will produce rainfall amounts between Trace-0.10" in 10-30 minutes.

A LOOK AHEAD: Similar conditions will continue Tuesday, with generally-dry SW flow persisting across the area, along with daytime temperatures holding in the mid to upper 80s.

Location Prime Time 30-Minute Rainfall
and % Probability
Message
Potential
Plains      
Adams 800 PM TO 100 AM TUE
Trace (60%) to 0.1" (20%) NONE
Arapahoe 800 PM TO 100 AM TUE
Trace (50%) to 0.1" (10%) NONE
Boulder 800 PM TO 100 AM TUE
Trace (65%) to 0.1" (25%) NONE
Broomfield 800 PM TO 100 AM TUE
Trace (65%) to 0.1" (25%) NONE
Denver 800 PM TO 100 AM TUE
Trace (55%) to 0.1" (15%) NONE
Douglas 800 PM TO 100 AM TUE
Trace (30%) to 0.1" (5%) NONE
Jefferson 800 PM TO 100 AM TUE
Trace (40%) to 0.1" (10%) NONE
Foothills above 6500ft      
Boulder 800 PM TO 100 AM TUE
Trace (65%) to 0.1" (30%) NONE
Douglas 800 PM TO 100 AM TUE
Trace (30%) to 0.1" (5%) NONE
Jefferson 800 PM TO 100 AM TUE
Trace (40%) to 0.1" (10%) NONE
MONITOR NATIONAL WEATHER SERVICE FOR SEVERE WEATHER STATEMENTS.