M-1 Street Flooding Potential
by f2p2＠udfcd.org
Time: 1105 AM Tue July 29, 2025
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),
JEFFERSON, BROOMFIELD, ADAMS, DENVER, ARAPAHOE
including: DIA, THE CITY OF AURORA, ARVADA, WHEAT RIDGE, LAKEWOOD
------------------------------------------------------------------------------
from: 100 PM
to 900 PM
.
Prime time for flooding: 200 PM
to 800 PM
.
------------------------------------------------------------------------------
Forecast rainfall: Typical showers and thunderstorms will produce
0.25”-0.75” total in 10-30 minutes. A moderate to strong
thunderstorm will produce 0.75”-1.50” total in 10-30 minutes.
An anchored moderate thunderstorm, or training of moderate to strong
thunderstorms will have the potential to produce 2.50” 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
X
Mountain locations subject to mud/rock/debris slide
------------------------------------------------------------------------------
Additional Information: Strong thunderstorms may also contain 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]
9 months
M-1 Street Flooding Potential
by f2p2＠udfcd.org
Time: 341 PM Fri July 25, 2025
Forecaster: James Miezejeski
-------------------------
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 800 PM
.
------------------------------------------------------------------------------
Forecast rainfall: Typical showers and weak thunderstorms will produce
0.10”-0.30” total in 10-30 minutes. A moderate to strong
thunderstorm will produce 0.30”-0.60” total in 10-30 minutes.
An anchored moderate thunderstorm, or training of moderate to strong
thunderstorms will have the potential to produce 1.20” 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 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]
9 months, 1 week
M-1 Street Flooding Potential
by f2p2＠udfcd.org
Time: 116 PM Thu July 24, 2025
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: THE CITY OF AURORA, DIA, ARVADA, WHEAT RIDGE, LAKEWOOD
------------------------------------------------------------------------------
from: Current
to 1000 PM
.
Prime time for flooding: 200 PM
to 900 PM
.
------------------------------------------------------------------------------
Forecast rainfall: Typical showers and thunderstorms will produce
0.10”-0.60” total in 10-30 minutes. A moderate to strong
thunderstorm will produce 0.60”-1.20” total in 10-30 minutes.
An anchored strong thunderstorm, or training of moderate to strong
thunderstorms will have the potential to produce 2.20” 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 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]
9 months, 1 week
M-3 Flash Flood Warning
by f2p2＠udfcd.org
Time: 757 PM Wed July 23, 2025
Forecaster: Aaron O'Brien
-------------------------
MESSAGE 3
Flash Flood Prediction Program
-------------------------
FLASH FLOOD WARNING
PRIORITY DISSEMINATION RECOMMENDED
The National Weather Service has issued a FLASH FLOOD WARNING for the
following counties: ADAMS, DENVER, ARAPAHOE
including: THE CITY OF AURORA
------------------------------------------------------------------------------
from: Current
to 1100 PM
. AT 754 PM MDT, DOPPLER RADAR AND AUTOMATED RAIN GAUGES INDICATED
THUNDERSTORMS PRODUCING HEAVY RAIN ACROSS THE WARNED AREA. UP TO 1.5
INCHES OF RAIN HAVE FALLEN. FLASH FLOODING IS ONGOING OR EXPECTED TO
BEGIN SHORTLY.
Prime time for flooding: Current
to 1030 PM
.
------------------------------------------------------------------------------
Forecast rainfall: Current rainfall up to 1.50" has resulted in
Flooding over the area.
------------------------------------------------------------------------------
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 explanation: This strong thunderstorm may also contain
large hail, gusty winds, and frequent cloud-to-ground lightning.
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]
9 months, 1 week
M-1 Low Impact Flooding
by f2p2＠udfcd.org
Time: 738 PM Wed July 23, 2025
Forecaster: Aaron O'Brien
-------------------------
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, ARAPAHOE
including: THE CITY OF AURORA
------------------------------------------------------------------------------
from: Current
to 900 PM
.
Prime time for flooding: Current
to 830 PM
.
------------------------------------------------------------------------------
Forecast rainfall: Typical showers and thunderstorms will produce a
0.10”-0.60” total in 10-30 minutes. A moderate to strong
thunderstorm will produce 0.60”-1.20” total in 10-30 minutes.
An anchored strong thunderstorm, or training of moderate to strong
thunderstorms will have the potential to produce 2.20” in under 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 Denver County, Arapahoe County, and the City of Aurora.
Strong thunderstorms may also contain some 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]
9 months, 1 week
M-1 Street Flooding Potential
by f2p2＠udfcd.org
Time: 1241 PM Wed July 23, 2025
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: THE CITY OF AURORA, DIA, ARVADA, WHEAT RIDGE, LAKEWOOD
------------------------------------------------------------------------------
from: Current
to 900 PM
.
Prime time for flooding: 100 PM
to 800 PM
.
------------------------------------------------------------------------------
Forecast rainfall: Typical showers and thunderstorms will produce a
0.10”-0.60” total in 10-30 minutes. A moderate to strong
thunderstorm will produce 0.60”-1.20” total in 10-30 minutes.
An anchored strong thunderstorm, or training of moderate to strong
thunderstorms will have the potential to produce 2.20” 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 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]
9 months, 1 week
M-1 Low Impact Flooding
by f2p2＠udfcd.org
Time: 516 PM Tue July 22, 2025
Forecaster: Aaron O'Brien
-------------------------
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 700 PM
.
Prime time for flooding: Current
to 630 PM
.
------------------------------------------------------------------------------
Forecast rainfall: Moderate thunderstorms will produce rainfall rates
of 0.40"- 0.80" total in 10-30 minutes.
A strong stationary storm, or training of thunderstorms will have the
potential to produce up to 1.60" in under 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 Arapahoe County and the City of Aurora. Strong
thunderstorms may also contain some 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]
9 months, 1 week
M-1 Street Flooding Potential
by f2p2＠udfcd.org
Time: 423 PM Tue July 22, 2025
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, JEFFERSON,
BROOMFIELD, DOUGLAS, BOULDER (CITY OF BOULDER AFFECTED)
including: WHEAT RIDGE, ARVADA, THE CITY OF AURORA, DIA, LAKEWOOD
------------------------------------------------------------------------------
from: Current
to 1100 PM
.
Prime time for flooding: Current
to 1000 PM
.
------------------------------------------------------------------------------
Forecast rainfall: Typical showers and thunderstorms will produce a
0.05”-0.40” total in 10-30 minutes. A moderate to strong
thunderstorm will produce 0.40”-0.80” total in 10-30 minutes.
An anchored strong thunderstorm, or training of moderate to strong
thunderstorms will have the potential to produce 1.60” 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 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]
9 months, 1 week
M-1 Street Flooding Potential
by f2p2＠udfcd.org
Time: 405 PM Fri July 18, 2025
Forecaster: James Miezejeski
-------------------------
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 900 PM
.
Prime time for flooding: Current
to 800 PM
.
------------------------------------------------------------------------------
Forecast rainfall: Typical showers and thunderstorms will produce a
0.05”-0.30” total in 10-30 minutes.
A moderate to strong thunderstorm will produce 0.30”-0.60” total
in 10-30 minutes.
An anchored strong thunderstorm, or training of moderate to strong
thunderstorms will have the potential to produce 1.40” 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 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]
9 months, 2 weeks
M-1 Street Flooding Potential
by f2p2＠udfcd.org
Time: 405 PM Thu July 17, 2025
Forecaster: James Miezejeski
-------------------------
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 1000 PM
.
Prime time for flooding: Current
to 900 PM
.
------------------------------------------------------------------------------
Forecast rainfall: Typical showers and thunderstorms will produce a
0.10”-0.50” total in 10-30 minutes.
A moderate to strong thunderstorm will produce 0.50”-1.00” total
in 10-30 minutes.
An anchored strong thunderstorm, or training of moderate to strong
thunderstorms will have the potential to produce 2.00” 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 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]
9 months, 2 weeks