M-1 Street Flooding Potential
by f2p2@udfcd.org
Time: 1240 PM Mon August 22, 2022
Forecaster: Brad Simmons
-------------------------
MESSAGE 1
Flash Flood Prediction Program
-------------------------
STREET FLOODING POTENTIAL
We have determined that street and small stream flooding is possible
in the following counties: JEFFERSON, DOUGLAS, ADAMS, DENVER, ARAPAHOE
including: DIA, THE CITY OF AURORA
------------------------------------------------------------------------------
from: 100 PM
to 830 PM
.
Prime time for flooding: 200 PM
to 730 PM
.
------------------------------------------------------------------------------
Forecast rainfall: Moderate to strong thunderstorms will have the
potential to produce rainfall rates of 0.3-0.9" in 10-30 minutes. A
strong nearly stationary thunderstorm may result in heavy rainfall
rates of up to 1.6" in 45-60 minutes.
------------------------------------------------------------------------------
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
------------------------------------------------------------------------------
Additional Information: Strong thunderstorms may also contain large
hail, gusty winds and frequent cloud-to-ground lightning.
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 Â Â Â F2P2 Website
[http://udfcd.org/Flash+Flood+Prediction+Program]
1 year, 8 months
M-1 Street Flooding Potential
by f2p2@udfcd.org
Time: 1255 PM Sun August 21, 2022
Forecaster: Justin Brooks
-------------------------
MESSAGE 1
Flash Flood Prediction Program
-------------------------
STREET FLOODING POTENTIAL
We have determined that street and small stream flooding is possible
in the following counties: ARAPAHOE, DENVER, ADAMS, DOUGLAS,
BROOMFIELD, JEFFERSON, BOULDER (CITY OF BOULDER AFFECTED, FOUR MILE
BURN AREA AFFECTED)
including: ARVADA, THE CITY OF AURORA, DIA, WHEAT RIDGE, LAKEWOOD
------------------------------------------------------------------------------
from: 100 PM
to 900 PM
.
Prime time for flooding: 200 PM
to 830 PM
.
------------------------------------------------------------------------------
Forecast rainfall: Moderate to strong thunderstorms will have the
potential to produce rainfall rates of 0.4-1.2" in 10-30 minutes. A
strong/slower moving or stationary thunderstorm may result in heavy
rainfall rates of up to 2.5" in 45-75 minutes.
------------------------------------------------------------------------------
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
------------------------------------------------------------------------------
Additional Information: Strong thunderstorms may also contain large
hail, gusty winds and frequent cloud-to-ground lightning.
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 Â Â Â F2P2 Website
[http://udfcd.org/Flash+Flood+Prediction+Program]
1 year, 9 months
M-1 Low Impact Flooding
by f2p2@udfcd.org
Time: 413 PM Sat August 20, 2022
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 JEFFERSON
COUNTY
including: ARVADA
------------------------------------------------------------------------------
from: Current
to 630 PM
.
Prime time for flooding: Current
to 600 PM
.
------------------------------------------------------------------------------
Forecast rainfall: Moderate to strong thunderstorms will have the
potential to produce rainfall rates of 0.4-1.0" in 10-30 minutes. A
strong/slower moving or stationary thunderstorm may result in heavy
rainfall rates of up to 2.0" in 45-60 minutes.
------------------------------------------------------------------------------
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
------------------------------------------------------------------------------
Additional Information: Excessive runoff is imminent or already
occurring over portions of Jefferson County including the City of
Arvada. Strong thunderstorms may also contain large hail, gusty winds
and frequent cloud-to-ground lightning.
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 Â Â Â F2P2 Website
[http://udfcd.org/Flash+Flood+Prediction+Program]
1 year, 9 months
M-1 Street Flooding Potential
by f2p2@udfcd.org
Time: 202 PM Sat August 20, 2022
Forecaster: Brad Simmons
-------------------------
MESSAGE 1
Flash Flood Prediction Program
-------------------------
STREET FLOODING POTENTIAL
We have determined that street and small stream flooding is possible
in the following counties: BOULDER (CITY OF BOULDER AFFECTED, FOUR
MILE BURN AREA AFFECTED), JEFFERSON, BROOMFIELD, DOUGLAS, ADAMS,
DENVER, ARAPAHOE
including: DIA, THE CITY OF AURORA, ARVADA, WHEAT RIDGE, LAKEWOOD
------------------------------------------------------------------------------
from: Current
to 930 PM
.
Prime time for flooding: 330 PM
to 830 PM
.
------------------------------------------------------------------------------
Forecast rainfall: Moderate to strong thunderstorms will have the
potential to produce rainfall rates of 0.4-1.0" in 10-30 minutes. A
strong/slower moving or stationary thunderstorm may result in heavy
rainfall rates of up to 2.0" in 45-60 minutes.
------------------------------------------------------------------------------
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
------------------------------------------------------------------------------
Additional Information: Strong thunderstorms may also contain large
hail, gusty winds and frequent cloud-to-ground lightning.
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 Â Â Â F2P2 Website
[http://udfcd.org/Flash+Flood+Prediction+Program]
1 year, 9 months
M-1 Street Flooding Potential Update
by f2p2@udfcd.org
Time: 947 PM Fri August 19, 2022
Forecaster: Justin Brooks
-------------------------
MESSAGE 1 UPDATE
Flash Flood Prediction Program
-------------------------
STREET FLOODING POTENTIAL
We previously determined that street and small stream flooding is
possible in the following counties: BOULDER (CITY OF BOULDER AFFECTED,
FOUR MILE BURN AREA AFFECTED), JEFFERSON, BROOMFIELD, DOUGLAS, ADAMS,
DENVER, ARAPAHOE
including: DIA, THE CITY OF AURORA, ARVADA, WHEAT RIDGE, LAKEWOOD
------------------------------------------------------------------------------
from: Current
to 400 AM
.
Prime time for flooding: Current
to 300 AM
.
------------------------------------------------------------------------------
Forecast rainfall: Moderate to strong thunderstorms will have the
potential to produce rainfall rates of 0.3-0.9" in 10-30 minutes. A
strong/slower moving or stationary thunderstorm may result in heavy
rainfall rates of up to 1.8" in 45-60 minutes.
------------------------------------------------------------------------------
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
------------------------------------------------------------------------------
Additional Information: Strong thunderstorms may also contain hail up
to 1", gusty winds and frequent cloud-to-ground lightning.
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 Â Â Â F2P2 Website
[http://udfcd.org/Flash+Flood+Prediction+Program]
1 year, 9 months
M-1 Street Flooding Potential
by f2p2@udfcd.org
Time: 324 PM Fri August 19, 2022
Forecaster: Justin Brooks
-------------------------
MESSAGE 1
Flash Flood Prediction Program
-------------------------
STREET FLOODING POTENTIAL
We have determined that street and small stream flooding is possible
in the following counties: ARAPAHOE, DENVER, ADAMS, DOUGLAS,
BROOMFIELD, JEFFERSON, BOULDER (CITY OF BOULDER AFFECTED, FOUR MILE
BURN AREA AFFECTED)
including: DIA, THE CITY OF AURORA, ARVADA, WHEAT RIDGE, LAKEWOOD
------------------------------------------------------------------------------
from: Current
to 1000 PM
.
Prime time for flooding: 400 PM
to 900 PM
.
------------------------------------------------------------------------------
Forecast rainfall: Moderate to strong thunderstorms will have the
potential to produce rainfall rates of 0.4-0.9" in 10-30 minutes. A
strong/slower moving or stationary thunderstorm may result in heavy
rainfall rates of up to 1.8" in 45-60 minutes.
------------------------------------------------------------------------------
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
------------------------------------------------------------------------------
Additional Information: Strong thunderstorms may also contain hail up
to 1", gusty winds and frequent cloud-to-ground lightning.
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 Â Â Â F2P2 Website
[http://udfcd.org/Flash+Flood+Prediction+Program]
1 year, 9 months
M-1 Low Impact Flooding
by f2p2@udfcd.org
Time: 841 AM Tue August 16, 2022
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: JEFFERSON, ADAMS
including:
------------------------------------------------------------------------------
from: Current
to 1030 AM
.
Prime time for flooding: Current
to 100 AM
.
------------------------------------------------------------------------------
Forecast rainfall: Moderate to heavy non-thunderstorm rain showers
will have the potential to produce rainfall rates of 0.4-1.2" in 10-30
minutes and up to 2.0-2.5" in an hour.
------------------------------------------------------------------------------
The most likely areas to be impacted by flooding are:
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
------------------------------------------------------------------------------
Additional Information: Excessive runoff is imminent or already
occurring over far N/NE Jefferson County and W Adams County (W of Hwy
85). It may not take as much rain today to produce excessive runoff as
the ground is saturated in many areas and smaller creeks and streams
are still running high from rain yesterday and overnight.
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 Â Â Â F2P2 Website
[http://udfcd.org/Flash+Flood+Prediction+Program]
1 year, 9 months
M-1 Street Flooding Potential
by f2p2@udfcd.org
Time: 738 AM Tue August 16, 2022
Forecaster: Brad Simmons
-------------------------
MESSAGE 1
Flash Flood Prediction Program
-------------------------
STREET FLOODING POTENTIAL
We have determined that street and small stream flooding is possible
in the following counties: BOULDER (CITY OF BOULDER AFFECTED, FOUR
MILE BURN AREA AFFECTED), JEFFERSON, BROOMFIELD, DOUGLAS, ADAMS,
DENVER, ARAPAHOE
including: DIA, THE CITY OF AURORA, ARVADA, WHEAT RIDGE, LAKEWOOD
------------------------------------------------------------------------------
from: Current
to 600 PM
.
Prime time for flooding: Current
to 500 PM
.
------------------------------------------------------------------------------
Forecast rainfall: Moderate rain showers will have the potential to
produce rainfall rates of up to 1.0" in an hour. Weak thunderstorms
will have the potential to produce rainfall rates of 0.4-1.2" in 10-30
minutes and up to 2" in 45-60 minutes.
------------------------------------------------------------------------------
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
------------------------------------------------------------------------------
Additional Information: It may not take as much rain today to produce
excessive runoff as the ground is saturated in many areas and smaller
creeks and streams are still running high from rain yesterday and
overnight.
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 Â Â Â F2P2 Website
[http://udfcd.org/Flash+Flood+Prediction+Program]
1 year, 9 months
M-4 All Clear
by f2p2@udfcd.org
Time: 830 PM Mon August 15, 2022
Forecaster: Justin Brooks
-------------------------
MESSAGE 4
Flash Flood Prediction Program
-------------------------
ALL CLEAR
The potential for flooding in the following counties: BOULDER (CITY
OF BOULDER AFFECTED, FOUR MILE BURN AREA AFFECTED), JEFFERSON,
BROOMFIELD, DOUGLAS, ADAMS, DENVER, ARAPAHOE
including: DIA, THE CITY OF AURORA, ARVADA, WHEAT RIDGE, LAKEWOOD has
passed.
All earlier Messages are canceled.
We will keep you advised of any changes.
Please pass this information along to the organizations you previously
notified.
MHFD Flood Prediction Center: 303-458-0789 Â Â Â F2P2 Website
[http://udfcd.org/Flash+Flood+Prediction+Program]
1 year, 9 months
M-2 Flash Flood Watch
by f2p2@udfcd.org
Time: 1252 PM Mon August 15, 2022
Forecaster: Brad Simmons
-------------------------
MESSAGE 2
Flash Flood Prediction Program
-------------------------
FLASH FLOOD WATCH
The National Weather Service has issued a FLASH FLOOD WATCH for: the
following counties: BOULDER (CITY OF BOULDER AFFECTED, FOUR MILE BURN
AREA AFFECTED), JEFFERSON, DOUGLAS
including: ARVADA, WHEAT RIDGE, LAKEWOOD
------------------------------------------------------------------------------
from: 100 PM
to 1159 PM
. THE NATIONAL WEATHER SERVICE IN BOULDER HAS ISSUED A FLOOD
WATCH/FLASH FLOOD WATCH FOR BOULDER, JEFFERSON AND DOUGLAS COUNTIES
ABOVE 6,000FT EFFECTIVE FROM 1:00 PM TO MIDNIGHT.
Prime time for flooding: 200 PM
to 1000 PM
.
------------------------------------------------------------------------------
Forecast rainfall: Moderate to strong thunderstorms will have the
potential to produce heavy rainfall rates of 0.8-2.2" in 10-30
minutes. Training of thunderstorm cells or a large/slower moving
strong thunderstorm may produce up to 3.5" of heavy rain in 45-75
minutes.
------------------------------------------------------------------------------
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
------------------------------------------------------------------------------
Additional information: MHFD Message 2's include areas above and below
6,000ft in Boulder, Jefferson and Douglas Counties. Excessive runoff
roadways is likely to develop over the District this afternoon with
Flash flooding of watercourses possible today should a stronger
thunderstorms be observed.
A Flash Flood Watch means that flash flooding is possible within the
watch area.
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 Â Â Â F2P2 Website
[http://udfcd.org/Flash+Flood+Prediction+Program]
1 year, 9 months