9:52 p.m.
Time: 952 PM Thu May 11, 2023
Forecaster: Brad Simmons
-------------------------
MESSAGE 1
Flash Flood Prediction Program
-------------------------
**** LOW IMPACT FLOODING ****
PRIORITY DISSEMINATION RECOMMENDED
We have determined that low impact flooding is likely in the following
counties: DENVER, ALL OF ADAMS, ADAMS, DOUGLAS, ARAPAHOE
including: DIA, THE CITY OF AURORA
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from: Current
to 1000 AM
.
Prime time for flooding: Current
to 800 AM
.
------------------------------------------------------------------------------
Forecast rainfall: Light rain showers will produce rainfall rates of
0.1-0.3" in 60 minutes. Moderate to heavy non-thunderstorm rain
showers will produce rainfall rates of 0.3-0.9" in 60 minutes. Very
heavy rain showers or a weak to moderate thunderstorm has the
potential to produce rainfall amounts of 0.5-1.5" in 30-60 minutes.
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The most likely areas to be impacted by flooding are:
X
Mountain streams & floodplains; road crossings; canyon roads &
highways; recreational trails; adjacent open space
areas/campgrounds/parks; fishing access points & stream reaches;
buildings near streams; utilities
X
Urban streams/gulches; road crossings; recreational trails; adjacent
open space areas/campgrounds/parks; floodplain properties; utilities
X
Urban streets, intersections, low lying areas, known trouble spots
X
Mountain locations subject to mud/rock/debris slide
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Additional Information: Excessive runoff is imminent or already
occurring in Douglas County, Adams County, Denver County, DIA,
Arapahoe County, and the City of Aurora. A saturated ground due to
2.0-5.0" of rain already observed over a 1-2 day period is resulting
in even light to moderate rain showers resulting in excessive runoff
in creeks and streams. Smaller creeks and streams are already running
high and additional rainfall may exacerbate runoff further and produce
flooding/flash flooding conditions in the District. An additional
1.0-3.0" of rain is likely over the next 5-10 hours.
This message is not intended for public dissemination. Please pass
this information along to affected emergency response organizations
(police, fire, public works, etc.) within your area.
Also, please take appropriate actions to prepare for possible
flooding.
Further information will be provided to you as it becomes available.
MHFD Flood Prediction Center: 303-458-0789 F2P2 Website
[http://udfcd.org/Flash+Flood+Prediction+Program]
