M-2 Flash Flood Watch
by f2p2＠udfcd.org
Time: 1146 AM Mon August 12, 2024
Forecaster: Justin Brooks
-------------------------
MESSAGE 2
Flash Flood Prediction Program
-------------------------
FLOOD WATCH
The National Weather Service has issued a FLOOD WATCH for: the
following counties: JEFFERSON, BOULDER (CITY OF BOULDER NOT AFFECTED)
including:
------------------------------------------------------------------------------
from: 1200 PM
to 900 PM
. The National Weather Service has issued a Flood Watch for the Front
Range Foothills, areas between 6,000-9,000ft, effective from noon
today until 9pm.
Note: This Message 2 superceeds the previously issued Message 2 for
FOOTHILLS AREAS ONLY. All previous Messages 2's & 1's are in effect
from 2pm-9pm for the rest of the District.
Prime time for flooding: 1200 PM
to 900 PM
.
------------------------------------------------------------------------------
Forecast rainfall: Weak to moderate thunderstorms will produce
rainfall rates of 0.3-0.8” total in 10- 30 minutes. Strong to severe
thunderstorms will have the potential to produce rainfall rates of
0.8- 1.5” total of rain in 10-30 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: Excessive runoff may result in flooding of
creeks, streams, and other low-lying and flood-prone locations. Debris
flows and rockslides will be possible in recent burn areas.The highest
risk in recent burn scars including the Alexander Mountain and Quarry
burn areas.
A Flood Watch means that 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 F2P2 Website
[http://udfcd.org/Flash+Flood+Prediction+Program]
2 months, 2 weeks
M-1 Street Flooding Potential
by f2p2＠udfcd.org
Time: 1028 AM Mon August 12, 2024
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: BROOMFIELD, JEFFERSON, BOULDER (CITY OF
BOULDER AFFECTED)
including: LAKEWOOD, WHEAT RIDGE, ARVADA
------------------------------------------------------------------------------
from: 200 PM
to 900 PM
.
Prime time for flooding: 200 PM
to 800 PM
.
------------------------------------------------------------------------------
Forecast rainfall: Weak to moderate thunderstorms will produce
rainfall rates of 0.3-0.8” total in 10-30 minutes. Strong to severe
thunderstorms will have the potential to produce rainfall rates of
0.8-1.5” total of rain in 10-30 minutes. A slow-moving strong
thunderstorm or a large thunderstorm complex may result in up to
3.0” of rain in 60-90 minutes.
------------------------------------------------------------------------------
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: Strong thunderstorms may also contain large
hail, gusty winds, and frequent cloud-to-ground lightning. Excessive
runoff and flooding of small streams and low-lying areas may occur.
This Message 1 is to include the threat of heavy rain for the Boulder
suburbs, western Broomfield and the Jefferson County suburbs in
conjunction with the Flood Watch for the remainder of the District.
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]
2 months, 2 weeks
M-2 Flash Flood Watch
by f2p2＠udfcd.org
Time: 1024 AM Mon August 12, 2024
Forecaster: Justin Brooks
-------------------------
MESSAGE 2
Flash Flood Prediction Program
-------------------------
FLOOD WATCH
The National Weather Service has issued a FLOOD WATCH for: the
following counties: BOULDER (CITY OF BOULDER NOT AFFECTED), JEFFERSON,
BROOMFIELD, DOUGLAS, ADAMS, DENVER, ARAPAHOE
including: DIA, THE CITY OF AURORA
------------------------------------------------------------------------------
from: 200 PM
to 900 PM
. The National Weather Service in Boulder has issued a Flood Watch for
most of the District which includes the threat of Flash Flooding from
2:00 PM today until
9:00 PM tonight.
Prime time for flooding: 200 PM
to 900 PM
.
------------------------------------------------------------------------------
Forecast rainfall: Weak to moderate thunderstorms will produce
rainfall rates of 0.3-0.8” total in 10-30 minutes. Strong to severe
thunderstorms will have the potential to produce rainfall rates of
0.8-1.5” total of rain in 10-30 minutes. A slow-moving strong
thunderstorm or a large thunderstorm complex may result in up to
3.0” of rain in 60-90 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: Heavy rainfall may result in excessive runoff
and possibly flash flooding over the District this afternoon into the
late evening. Strong to severe thunderstorms may also contain large
hail, gusty winds, and frequent cloud-to-ground lightning.
This Flood Watch does NOT include City of Boulder, western Broomfield
of the Jefferson County suburbs; however, will be followed up with a
Message 1 to include those areas for the potential for heavy rain this
afternoon and evening.
A Flood Watch means that 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 F2P2 Website
[http://udfcd.org/Flash+Flood+Prediction+Program]
2 months, 2 weeks
M-1 Street Flooding Potential
by f2p2＠udfcd.org
Time: 318 PM Sat August 10, 2024
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)
including: WHEAT RIDGE, ARVADA, THE CITY OF AURORA, DIA, LAKEWOOD
------------------------------------------------------------------------------
from: Current
to 1100 PM
.
Prime time for flooding: 400 PM
to 1000 PM
.
------------------------------------------------------------------------------
Forecast rainfall: Moderate to strong thunderstorms will have the
potential to produce rainfall rates of 0.30”-0.80” total in 10-30
minutes. A stationary/slow-moving thunderstorm or a large thunderstorm
complex may result in up to 1.60” of rain 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 large
hail, gusty winds, and frequent cloud-to-ground lightning. Excessive
runoff and flooding of small streams and low-lying areas may occur.
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]
2 months, 3 weeks
M-1 Street Flooding Potential
by f2p2＠udfcd.org
Time: 426 PM Thu August 8, 2024
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)
including: WHEAT RIDGE, ARVADA, THE CITY OF AURORA, DIA, LAKEWOOD
------------------------------------------------------------------------------
from: Current
to 900 PM
.
Prime time for flooding: Current
to 830 PM
.
------------------------------------------------------------------------------
Forecast rainfall: Moderate to strong thunderstorms will have the
potential to produce rainfall rates of 0.25”-0.75” in 10-30
minutes.
A slow-moving thunderstorm or a large thunderstorm complex may result
in up to 1.50” of rain 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. Excessive
runoff and flooding of small streams and lowlying areas may occur.
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]
2 months, 3 weeks
M-1 Street Flooding Potential
by f2p2＠udfcd.org
Time: 154 PM Wed August 7, 2024
Forecaster: Laura Smith
-------------------------
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),
JEFFERSON, BROOMFIELD, DOUGLAS, ADAMS, DENVER, ARAPAHOE
including: DIA, THE CITY OF AURORA, ARVADA, WHEAT RIDGE, LAKEWOOD
------------------------------------------------------------------------------
from: Current
to 1000 PM TUESDAY
.
Prime time for flooding: 230 PM
to 930 PM
.
------------------------------------------------------------------------------
Forecast rainfall: Thunderstorms will have the potential to produce
rainfall rates of 0.30”-0.90” in 10-30 minutes.
A slow-moving thunderstorm or a large thunderstorm complex may result
in up to 1.80” of rain 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. Excessive
runoff and flooding of small streams and low-lying areas may occur.
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]
2 months, 3 weeks
M-1 Low Impact Flooding
by f2p2＠udfcd.org
Time: 412 PM Tue August 6, 2024
Forecaster: Justin Brooks
-------------------------
MESSAGE 1
Flash Flood Prediction Program
-------------------------
**** LOW IMPACT FLOODING ****
PRIORITY DISSEMINATION RECOMMENDED
We have determined that low impact flooding is likely in BOULDER
COUNTY (CITY OF BOULDER NOT AFFECTED)
including:
------------------------------------------------------------------------------
from: Current
to 530 PM
.
Prime time for flooding: Current
to 500 PM
.
------------------------------------------------------------------------------
Forecast rainfall: Moderate to strong thunderstorms will produce
rainfall rates of 0.25-0.80" total in 10-30 minutes. A strong
stationary storm, or training of thunderstorms will have the potential
to produce up to 1.50" in under 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 in Boulder County. 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 F2P2 Website
[http://udfcd.org/Flash+Flood+Prediction+Program]
2 months, 3 weeks
M-1 Street Flooding Potential
by f2p2＠udfcd.org
Time: 1256 PM Tue August 6, 2024
Forecaster: Laura Smith
-------------------------
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),
JEFFERSON, BROOMFIELD, DOUGLAS, ADAMS, DENVER, ARAPAHOE
including: DIA, THE CITY OF AURORA, ARVADA, WHEAT RIDGE, LAKEWOOD
------------------------------------------------------------------------------
from: Current
to 1000 PM
.
Prime time for flooding: Current
to 900 PM
.
------------------------------------------------------------------------------
Forecast rainfall: Thunderstorms will have the potential to produce
rainfall rates of 0.25”-0.75” in 10-30 minutes.
A slow-moving thunderstorm or a large thunderstorm complex may result
in up to 1.50” of rain 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. Excessive
runoff and flooding of small streams and low-lying areas may occur.
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]
2 months, 3 weeks
M-1 Street Flooding Potential
by f2p2＠udfcd.org
Time: 305 PM Mon August 5, 2024
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)
including: ARVADA, THE CITY OF AURORA, DIA, WHEAT RIDGE, LAKEWOOD
------------------------------------------------------------------------------
from: Current
to 1000 PM
.
Prime time for flooding: 400 PM
to 900 PM
.
------------------------------------------------------------------------------
Forecast rainfall: Moderate to strong thunderstorms will produce
rainfall rates of 0.30”-0.80” in 10-30 minutes. A slow-moving
thunderstorm or training of thunderstorm cells will have the potential
to produce up to 1.25” of rain in 30-60 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 large
hail, gusty winds, and frequent cloud-to-ground lightning. Excessive
runoff and flooding of small streams and
low lying areas may occur.
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]
2 months, 3 weeks