M-2 Flash Flood Watch
by f2p2＠udfcd.org
Time: 342 PM Mon July 31, 2023
Forecaster: Brad Simmons
-------------------------
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 AFFECTED, FOUR MILE BURN
AREA AFFECTED), JEFFERSON, BROOMFIELD, DOUGLAS, ADAMS, DENVER,
ARAPAHOE
including: DIA, THE CITY OF AURORA, ARVADA, WHEAT RIDGE, LAKEWOOD
------------------------------------------------------------------------------
from: 400 PM
to 1159 PM
. THE NATIONAL WEATHER SERVICE IN BOULDER HAS ISSUED A FLOOD WATCH FOR
THE ENTIRE DISTRICT WHICH INCLUDES THE THREAT OF FLASH FLOODING FROM
4:00 PM TODAY UNTIL MIDNIGHT TONIGHT. THE MESSAGE 2'S MAY BE EXTENDED
BEYOND MIDNIGHT SHOULD CONDITIONS WARRANT.
Prime time for flooding: 500 PM
to 1130 PM
.
------------------------------------------------------------------------------
Forecast rainfall: Weak to moderate thunderstorms will produce
rainfall rates of 0.2-0.8” in 10-30 minutes. Strong thunderstorms
will have the potential to produce rainfall rates of 0.8-2.0” of
rain in 10-30 minutes. A slow moving strong thunderstorm or a large
thunderstorm complex may result in up to 3.5” 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 thunderstorms may also contain large hail, gusty
winds, and frequent cloud-to-ground lightning.
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]
1 year, 3 months
M-4 All Clear
by f2p2＠udfcd.org
Time: 650 PM Sun July 30, 2023
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), DOUGLAS,
BROOMFIELD, JEFFERSON, 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 F2P2 Website
[http://udfcd.org/Flash+Flood+Prediction+Program]
1 year, 3 months
M-1 Street Flooding Potential
by f2p2＠udfcd.org
Time: 408 PM Sun July 30, 2023
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, JEFFERSON, BROOMFIELD,
DOUGLAS, ADAMS, BOULDER (CITY OF BOULDER AFFECTED, FOUR MILE BURN AREA
AFFECTED)
including: LAKEWOOD, WHEAT RIDGE, ARVADA, THE CITY OF AURORA, DIA
------------------------------------------------------------------------------
from: Current
to 900 PM
.
Prime time for flooding: 430 PM
to 830 PM
.
------------------------------------------------------------------------------
Forecast rainfall: Moderate to strong thunderstorms have the potential
to produce heavy rainfall rates of 0.5-1.2” 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: A slow moving strong thunderstorm may result
in up to 2.0” of rain in 45-60 minutes.
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]
1 year, 3 months
M-1 Street Flooding Potential
by f2p2＠udfcd.org
Time: 328 PM Sat July 29, 2023
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: WHEAT RIDGE, THE CITY OF AURORA, DIA, LAKEWOOD, ARVADA
------------------------------------------------------------------------------
from: Current
to 900 PM
.
Prime time for flooding: 400 PM
to 830 PM
.
------------------------------------------------------------------------------
Forecast rainfall: Moderate to strong thunderstorms have the potential
to produce heavy rainfall rates of 0.5-1.5” 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: A slow moving strong thunderstorm may result
in up to 2.5” of rain in 60-75 minutes.
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]
1 year, 3 months
M-1 Street Flooding Potential
by f2p2＠udfcd.org
Time: 347 PM Fri July 28, 2023
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 900 PM
.
Prime time for flooding: Current
to 800 PM
.
------------------------------------------------------------------------------
Forecast rainfall: Moderate to strong thunderstorms have the potential
to produce heavy rainfall up to 0.50-1.25” 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: Anchored or training thunderstorms have the
potential to produce 1.50” to 2.25” in 45-60 minutes.
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]
1 year, 3 months
M-1 Street Flooding Potential
by f2p2＠udfcd.org
Time: 220 PM Wed July 26, 2023
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 830 PM
.
Prime time for flooding: 300 PM
to 730 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
slower moving strong thunderstorm or training of thunderstorm cells
may result in up to 1.4" of 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
------------------------------------------------------------------------------
Additional Information: Strong thunderstorms may also contain hail,
gusty winds in excess of 50mph, 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]
1 year, 3 months
M-4 All Clear
by f2p2＠udfcd.org
Time: 701 PM Tue July 25, 2023
Forecaster: Brad Simmons
-------------------------
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 F2P2 Website
[http://udfcd.org/Flash+Flood+Prediction+Program]
1 year, 3 months
M-1 Street Flooding Potential
by f2p2＠udfcd.org
Time: 419 PM Tue July 25, 2023
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: Current
to 830 PM
.
------------------------------------------------------------------------------
Forecast rainfall: Moderate to strong thunderstorms will have the
potential to produce rainfall rates of 0.3-0.8” in 10-30 minutes. A
nearly stationary thunderstorm or training of thunderstorm cells may
result in up to 1.4" of 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
------------------------------------------------------------------------------
Additional Information: Strong thunderstorms may also contain hail,
gusty winds in excess of 50mph, 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]
1 year, 3 months
M-1 Low Impact Flooding
by f2p2＠udfcd.org
Time: 820 PM Fri July 21, 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 ARAPAHOE
COUNTY
including: THE CITY OF AURORA
------------------------------------------------------------------------------
from: Current
to 945 PM
.
Prime time for flooding: Current
to 930 PM
.
------------------------------------------------------------------------------
Forecast rainfall: Moderate to strong thunderstorms will have the
potential to produce rainfall rates of 0.4-1.0" in 10-30 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: Excessive runoff is imminent or already
occurring in Arapahoe County and the City of Aurora. 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]
1 year, 3 months
M-1 Street Flooding Potential
by f2p2＠udfcd.org
Time: 716 PM Fri July 21, 2023
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 1030 PM
.
Prime time for flooding: Current
to 1000 PM
.
------------------------------------------------------------------------------
Forecast rainfall: Moderate to strong thunderstorms will have the
potential to produce rainfall rates of 0.3-0.8” in 10-30 minutes.
Training of moderate to strong thunderstorm cells may result in up to
1.2" 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 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]
1 year, 3 months