M-1 Low Impact Flooding
by f2p2＠udfcd.org
Time: 516 PM Sat August 30, 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 730 PM
.
Prime time for flooding: Current
to 700 PM
.
------------------------------------------------------------------------------
Forecast rainfall: Typical showers or weak thunderstorm will produce a
0.05”-0.30” total in 10-30 minutes. A moderate shower/thunderstorm
will produce 0.30”-0.80” total in 10-30 minutes.
An anchored moderate thunderstorm, or training of moderate
showers/thunderstorms will have the potential to produce up to 1.40”
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 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]
8 months
M-1 Street Flooding Potential
by f2p2＠udfcd.org
Time: 402 PM Sat August 30, 2025
Forecaster: Aaron O'Brien
-------------------------
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: Current
to 900 PM
.
------------------------------------------------------------------------------
Forecast rainfall: Typical showers or weak thunderstorm will produce
0.05”-0.30” total in 10-30 minutes. A moderate shower/thunderstorm
will produce 0.30”-0.80” total in 10-30 minutes.
An anchored moderate thunderstorm, or training of moderate
showers/thunderstorms will have the potential to produce up to 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.
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]
8 months
M-1 Low Impact Flooding
by f2p2＠udfcd.org
Time: 626 PM Thu August 28, 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: ADAMS, ARAPAHOE
including: THE CITY OF AURORA
------------------------------------------------------------------------------
from: Current
to 830 PM
.
Prime time for flooding: Current
to 800 PM
.
------------------------------------------------------------------------------
Forecast rainfall: Typical showers or weak thunderstorm will produce a
0.10”-0.50” total in 10-30 minutes. A moderate shower/thunderstorm
will produce 0.50”-1.00” total in 10-30 minutes.
An anchored moderate thunderstorm, or training of moderate
showers/thunderstorms will have the potential to produce up to 2.00”
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 Adams County, Arapahoe County, and the City of Aurora.
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]
8 months
M-1 Street Flooding Potential
by f2p2＠udfcd.org
Time: 557 PM Thu August 28, 2025
Forecaster: Aaron O'Brien
-------------------------
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: Typical showers or weak thunderstorm will produce a
0.10”-0.50” total in 10-30 minutes. A moderate shower/thunderstorm
will produce 0.50”-1.00” total in 10-30 minutes.
An anchored moderate thunderstorm, or training of moderate
showers/thunderstorms will have the potential to produce up to 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.
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]
8 months
M-1 Street Flooding Potential
by f2p2＠udfcd.org
Time: 106 PM Wed August 27, 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, DOUGLAS, ADAMS, DENVER, ARAPAHOE
including: DIA, THE CITY OF AURORA, ARVADA, WHEAT RIDGE, LAKEWOOD
------------------------------------------------------------------------------
from: Current
to 1000 PM
.
Prime time for flooding: 130 PM
to 930 PM
.
------------------------------------------------------------------------------
Forecast rainfall: Typical showers or weak thunderstorm will produce a
0.20”-0.60” total in 10-30 minutes. A moderate shower/thunderstorm
will produce 0.60”-1.20” total in 10-30 minutes.
An anchored moderate thunderstorm, or training of moderate
showers/thunderstorms will have the potential to produce up to 2.40”
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]
8 months, 1 week
M-3 Flash Flood Warning
by f2p2＠udfcd.org
Time: 641 PM Tue August 26, 2025
Forecaster: Justin Brooks
-------------------------
MESSAGE 3
Flash Flood Prediction Program
-------------------------
FLASH FLOOD WARNING
PRIORITY DISSEMINATION RECOMMENDED
The National Weather Service has issued a FLASH FLOOD WARNING for
ARAPAHOE COUNTY
including: THE CITY OF AURORA
------------------------------------------------------------------------------
from: Current
to 930 PM
. AT 637 PM MDT, TRAINED WEATHER SPOTTERS REPORTED FLOODING NEAR THE
ARAPAHOE AND ELBERT COUNTY LINE. BETWEEN 2.5 AND 3.5 INCHES OF RAIN
HAVE FALLEN.
Prime time for flooding: Current
to 930 PM
.
------------------------------------------------------------------------------
Forecast rainfall: Additional rainfall amounts of 0.5 to 1 inch are
possible in the warned area. Flash flooding is ongoing or expected to
begin shortly.
------------------------------------------------------------------------------
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]
8 months, 1 week
M-1 Low Impact Flooding
by f2p2＠udfcd.org
Time: 621 PM Tue August 26, 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 830 PM
.
Prime time for flooding: Current
to 800 PM
.
------------------------------------------------------------------------------
Forecast rainfall: Typical showers or weak thunderstorm will produce a
0.20”-0.60” total in 10-30 minutes. A moderate shower/thunderstorm
will produce 0.60”-1.20” total in 10-30 minutes.
An anchored moderate thunderstorm, or training of moderate
showers/thunderstorms will have the potential to produce up to 2.40”
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 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]
8 months, 1 week
M-1 Low Impact Flooding
by f2p2＠udfcd.org
Time: 424 PM Tue August 26, 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 600 PM
.
Prime time for flooding: Current
to 530 PM
.
------------------------------------------------------------------------------
Forecast rainfall: Typical showers or weak thunderstorm will produce a
0.20”-0.60” total in 10-30 minutes. A moderate shower/thunderstorm
will produce 0.60”-1.20” total in 10-30 minutes.
An anchored moderate thunderstorm, or training of moderate
showers/thunderstorms will have the potential to produce up to 2.40”
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 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]
8 months, 1 week
M-1 Street Flooding Potential
by f2p2＠udfcd.org
Time: 1201 PM Tue August 26, 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: 100 PM
to 900 PM
.
------------------------------------------------------------------------------
Forecast rainfall: Typical showers or weak thunderstorm will produce a
0.20”-0.60” total in 10-30 minutes. A moderate shower/thunderstorm
will produce 0.60”-1.20” total in 10-30 minutes.
An anchored moderate thunderstorm, or training of moderate
showers/thunderstorms will have the potential to produce up to 2.40”
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]
8 months, 1 week
M-1 Street Flooding Potential
by f2p2＠udfcd.org
Time: 1251 PM Mon August 25, 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: WHEAT RIDGE, THE CITY OF AURORA, DIA, ARVADA, LAKEWOOD
------------------------------------------------------------------------------
from: Current
to 1000 PM
.
Prime time for flooding: Current
to 900 PM
.
------------------------------------------------------------------------------
Forecast rainfall: Typical showers or weak thunderstorm will produce a
0.20”-0.60” total in 10-30 minutes. A moderate shower/thunderstorm
will produce 0.60”-1.20” total in 10-30 minutes.
An anchored moderate thunderstorm, or training of moderate
showers/thunderstorms will have the potential to produce up to 2.40”
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]
8 months, 1 week