M-1 Street Flooding Potential
by f2p2＠udfcd.org
Time: 922 AM Fri June 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: 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 530 PM
.
------------------------------------------------------------------------------
Forecast rainfall: Moderate to strong thunderstorm will have the
potential to produce rainfall rates of 0.5-1.5" in 10-30 minutes. A
nearly stationary strong thunderstorm will have the potential to
produce up to 2.5" 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, frequent cloud-to-ground lightning and possibly and
isolated land spout/tornado.
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]
10 months, 3 weeks
M-1 Low Impact Flooding
by f2p2＠udfcd.org
Time: 117 AM Fri June 30, 2023
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 DOUGLAS
COUNTY
including:
------------------------------------------------------------------------------
from: Current
to 300 AM
.
Prime time for flooding: Current
to 230 AM
.
------------------------------------------------------------------------------
Forecast rainfall: Moderate to strong thunderstorm will have the
potential to produce rainfall rates of 0.3-1.2" in 10-30 minutes. A
nearly stationary strong thunderstorm will have the potential to
produce up to 2.0" of rain in 45-60 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 Douglas County. Strong thunderstorms may also contain
large hail, gusty winds, 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]
10 months, 3 weeks
M-1 Street Flooding Potential
by f2p2＠udfcd.org
Time: 115 AM Fri June 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: DOUGLAS, ARAPAHOE
including: THE CITY OF AURORA
------------------------------------------------------------------------------
from: Current
to 400 AM
.
Prime time for flooding: Current
to 300 AM
.
------------------------------------------------------------------------------
Forecast rainfall: Moderate to strong thunderstorm will have the
potential to produce rainfall rates of 0.3-0.9" in 10-30 minutes. A
nearly stationary strong thunderstorm will have the potential to
produce up to 1.8" of rain in 45-60 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, 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]
10 months, 3 weeks
M-1 Street Flooding Potential
by f2p2＠udfcd.org
Time: 1147 AM Thu June 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: DIA, THE CITY OF AURORA, ARVADA, WHEAT RIDGE, LAKEWOOD
------------------------------------------------------------------------------
from: 100 PM
to 1159 PM
.
Prime time for flooding: 200 PM
to 1159 PM
.
------------------------------------------------------------------------------
Forecast rainfall: Moderate to strong thunderstorm will have the
potential to produce rainfall rates of 0.5-1.5" in 10-30 minutes. A
nearly stationary strong thunderstorm will have the potential to
produce up to 2.4" 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, frequent cloud-to-ground lightning and possibly an
isolated tornado or two.
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]
10 months, 3 weeks
M-1 Low Impact Flooding
by f2p2＠udfcd.org
Time: 321 PM Thu June 22, 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 DOUGLAS
COUNTY
including:
------------------------------------------------------------------------------
from: Current
to 600 PM
.
Prime time for flooding: Current
to 530 PM
.
------------------------------------------------------------------------------
Forecast rainfall: Moderate to strong thunderstorms will have the
potential to produce rainfall rates of 0.5-1.5" in 10-30 minutes. A
nearly stationary strong thunderstorm will have the potential to
produce up to 2.5" 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
------------------------------------------------------------------------------
Additional Information: Excessive runoff is imminent or already
occurring in Douglas County. Strong thunderstorms may also contain
large hail, gusty winds, and frequent cloud-to-ground lightning.
The Message 2 (NWS Flood/Flash Flood Watch) remains valid until
midnight.
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]
11 months
M-2 Flash Flood Watch
by f2p2＠udfcd.org
Time: 1054 AM Thu June 22, 2023
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 AFFECTED, FOUR MILE BURN
AREA AFFECTED), JEFFERSON, BROOMFIELD, DOUGLAS, ADAMS, DENVER,
ARAPAHOE
including: DIA, THE CITY OF AURORA, ARVADA, WHEAT RIDGE, LAKEWOOD
------------------------------------------------------------------------------
from: 1200 PM
to 1159 PM
. THE NATIONAL WEATHER SERVICE IN BOULDER HAS ISSUED A FLOOD WATCH FOR
THE ENTIRE DISTRICT FROM 12:00 PM TODAY UNTIL 11:59 PM TONIGHT. THE
MESSAGE 2 MAY BE RESCINDED PRIOR TO 11:59 PM IF CONDITIONS WARRANT.
Prime time for flooding: 1200 PM
to 1100 PM
.
------------------------------------------------------------------------------
Forecast rainfall: Typical thunderstorms have the potential to produce
moderate to heavy rainfall of 0.50” to 1.00” total, in 10-30
minutes. Strong thunderstorms have the potential to produce very heavy
rainfall of 1.00” to 1.50” total, in 10-30 minutes. Anchored or
slow-moving thunderstorms have the potential to produce 1.50” to
2.20” in 45 to 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: 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, frequent cloud-to-ground lightning and possibly an isolated
tornado.
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]
11 months
M-1 Low Impact Flooding
by f2p2＠udfcd.org
Time: 1037 PM Wed June 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 DOUGLAS
COUNTY
including:
------------------------------------------------------------------------------
from: Current
to 100 AM
.
Prime time for flooding: Current
to 1230 AM
.
------------------------------------------------------------------------------
Forecast rainfall: Moderate to strong thunderstorms will have the
potential to produce rainfall rates of 0.5-1.5" in 10-30 minutes.
Higher amounts are possible should a storm linger for more than a 30
minute time frame with up to 2.8" 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: Excessive runoff is imminent or already
occurring in Douglas 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]
11 months
M-2 Flash Flood Watch
by f2p2＠udfcd.org
Time: 240 PM Wed June 21, 2023
Forecaster: Brad Simmons
-------------------------
MESSAGE 2
Flash Flood Prediction Program
-------------------------
FLASH FLOOD WATCH
The National Weather Service has issued a FLASH FLOOD WATCH for:
DOUGLAS COUNTY
including:
------------------------------------------------------------------------------
from: 300 PM
to 600 AM
. THE NATIONAL WEATHER SERVICE IN BOULDER HAS ISSUED A FLOOD/FLASH
FLOOD WATCH FOR THE EASTERN 2/3'S OF DOUGLAS COUNTY ABOVE 6,000FT FROM
6:00 PM THIS EVENING UNTIL 6:00 AM THURSDAY (6/22). THE MHFD MESSAGE 2
WILL START PRIOR TO THE NWS FLOOD/FLASH FLOOD WATCH AND BE VALID FROM
3:00 PM TODAY TO 6:00 AM THURSDAY TO ALLOW FOR LEAD TIME. THE MESSAGE
2 MAY BE RESCINDED PRIOR TO 6:00 AM THURSDAY IF CONDITIONS WARRANT.
Prime time for flooding: 400 PM
to 100 AM
.
------------------------------------------------------------------------------
Forecast rainfall: Moderate to strong thunderstorm will have the
potential to produce rainfall rates of 0.6-1.8" in 10-30 minutes. A
nearly stationary strong thunderstorm will have the potential to
produce up to 3.0" 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: Heavy rainfall may result in excessive runoff
and possibly flash flooding over portions of Douglas County late this
afternoon into the overnight period. Strong thunderstorms may also
contain large hail, gusty winds, frequent cloud-to-ground lightning
and possibly a very isolated tornado.
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 F2P2 Website
[http://udfcd.org/Flash+Flood+Prediction+Program]
11 months
M-2 Flash Flood Watch
by f2p2＠udfcd.org
Time: 1056 AM Sat June 17, 2023
Forecaster: Justin Brooks
-------------------------
MESSAGE 2
Flash Flood Prediction Program
-------------------------
FLOOD WATCH
The National Weather Service has issued a FLOOD WATCH for: DOUGLAS
COUNTY
including:
------------------------------------------------------------------------------
from: Current
to 600 PM
. THE NATIONAL WEATHER SERVICE HAS ISSUED A FLOOD WATCH THAT INCLUDES
PORTIONS OF NORTHEASTERN DOUGLAS COUNTY, INCLUDING NE HIGHLANDS RANCH
AND PARKER FROM NOON-6PM TODAY.
Prime time for flooding: Current
to 600 PM
.
------------------------------------------------------------------------------
Forecast rainfall: A moderate to strong thunderstorm will produce
0.4-1.2” total, in 10-30 minutes. A stronger thunderstorm, or
training of moderate showers/thunderstorms
will have the potential to produce 1.8” total 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
X
Mountain locations subject to mud/rock/debris slide
------------------------------------------------------------------------------
Additional information: Strong thunderstorms may also contain large
hail, frequent cloudtoground lightning and gusty winds.
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]
11 months, 1 week
M-2 Flash Flood Watch
by f2p2＠udfcd.org
Time: 918 AM Fri June 16, 2023
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 AFFECTED, FOUR MILE BURN
AREA AFFECTED), JEFFERSON, BROOMFIELD, DOUGLAS, ADAMS, DENVER,
ARAPAHOE
including: DIA, THE CITY OF AURORA, ARVADA, WHEAT RIDGE, LAKEWOOD
------------------------------------------------------------------------------
from: 1000 AM
to 1000 PM
. THE NATIONAL WEATHER SERVICE IN BOULDER HAS ISSUED A FLOOD WATCH FOR
THE ENTIRE DISTRICT EFFECTIVE FROM 12:00 PM TODAY, JUNE 16TH 2023,
UNTIL 10:00 PM.
Prime time for flooding: 1200 PM
to 1000 PM
.
------------------------------------------------------------------------------
Forecast rainfall: Moderate to strong thunderstorms will have the
potential to produce heavy rainfall rates of 0.5-1.5" total, in 10-30
minutes. A nearly stationary thunderstorm or large thunderstorm
complex
may produce up to 3.0" of heavy 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: Excessive runoff roadways is likely to develop
over the District today, this evening and possibly into the overnight
tonight with flooding of watercourses likely today should stronger
thunderstorms be observed.
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]
11 months, 1 week