Time: 901 AM Mon September 9, 2024
Forecaster: Justin Brooks
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Heavy Precipitation Outlook
Flash Flood Prediction Program
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Warm, mostly sunny with a slight chance of a few high based
showers/thunderstorms this afternoon and evening.
A slight shift in the upper-level flow aloft today will bring more
westerly flow aloft over the region today as high-pressure continues
to churn over the desert southwest. Mild and dry conditions are
expected throughout most of the day today under mostly sunny skies.
Another very slight chance this afternoon for a few high-based showers
and possibly a thunderstorm or two. Most storm activity will remain
anchored to the foothills, likely mixing out as they move eastward and
onto the plains. Once again, the majority of, if not all precipitation
will struggle to reach the surface, resulting in gusty sprinkles
rather than any meaningful rainfall within the District. The best
chance for storm activity will be from 2-8pm with skies starting to
clear by sundown.
Overnight temperatures will drop into the upper 50s to around 60
degrees on the plains with mid to upper 50s along the foothills.
STORM RAINFALL POTENTIAL AND DURATION: Typical showers will produce
between a trace and 0.10” total in 10-30 minutes.
WORST CASE SCENARIO: A moderate to strong shower/isolated thunderstorm
will have the potential to produce 0.10”-0.30” total in 10-30
minutes.
A LOOK AHEAD: Westerly upper-level flow aloft continues bringing
another mostly mild and dry day tomorrow as high temperatures reach
the upper 80s to around 90 degrees. Another slight chance for a few
high-based showers and possibly a weak thunderstorm or two, mainly
along the higher terrain foothills and Palmer Divide. A relatively
weak disturbance will move into the region Wednesday, bringing a
slightly better chance for afternoon showers and thunderstorms with
minimal chances for any heavy rainfall at this time.
LOCATION
PRIME TIME
30-Minute Rainfall
and % Probability Message
Potential
Plains
Adams
300 PM TO 800 PM
Trace (20%) to 0.1" (10%) to 0.3" (5%)
NONE
Arapahoe
300 PM TO 800 PM
Trace (20%) to 0.1" (10%) to 0.3" (5%)
NONE
Boulder
300 PM TO 800 PM
Trace (20%) to 0.1" (10%) to 0.3" (5%)
NONE
Broomfield
300 PM TO 800 PM
Trace (20%) to 0.1" (10%) to 0.3" (5%)
NONE
Denver
300 PM TO 800 PM
Trace (20%) to 0.1" (10%) to 0.3" (5%)
NONE
Douglas
300 PM TO 800 PM
Trace (20%) to 0.1" (10%) to 0.3" (5%)
NONE
Jefferson
300 PM TO 800 PM
Trace (20%) to 0.1" (10%) to 0.3" (5%)
NONE
Foothills above 6500ft
Boulder
200 PM TO 700 PM
Trace (30%) to 0.1" (15%) to 0.3" (5%)
NONE
Douglas
200 PM TO 700 PM
Trace (30%) to 0.1" (15%) to 0.3" (5%)
NONE
Jefferson
200 PM TO 700 PM
Trace (30%) to 0.1" (15%) to 0.3" (5%)
NONE
MONITOR NATIONAL WEATHER SERVICE FOR SEVERE WEATHER STATEMENTS.
MHFD Flood Prediction Center: 303-458-0789 F2P2 Website
[
http://udfcd.org/Flash+Flood+Prediction+Program]