Alert archive / Colorado / Flash Flood Warnings in 2026

Flash Flood Warning 76, NWS Pueblo, CO

August 24, 2026Custer County, Pueblo County, Colorado

NWS Pueblo, CO issued this flash flood warning at Aug 24, 2026, 5:33 PM MDT for Custer County, Pueblo County, Colorado. It was in force for 112 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Aug 24, 2026, 5:33 PM MDT (23:33 UTC)
Expired
Aug 24, 2026, 7:25 PM MDT
In force
112 min
Issued by
NWS Pueblo, CO
Area
Storm-based polygon
Damage threat
Considerable
Flood severity
None

Counties Custer County, CO, Pueblo County, CO

The radar

The Pueblo radar (KPUX), 88 km from the middle of the area, began a volume at 23:34 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this flash flood warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The text

As transmitted.

513 
WGUS55 KPUB 242333
FFWPUB
COC027-101-250230-
/O.NEW.KPUB.FF.W.0076.260824T2333Z-260825T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Pueblo CO
533 PM MDT Mon Aug 24 2026

The National Weather Service in Pueblo has issued a

* Flash Flood Warning for...
  The Middle Aspen Acres Burn Scar in...
  East Central Custer County in southeastern Colorado...
  West Central Pueblo County in southeastern Colorado...

* Until 830 PM MDT.

* At 533 PM MDT, Doppler radar indicated thunderstorms producing
  heavy rain over the Middle Aspen Acres Burn Scar. Between 0.5 and
  0.8 inches of rain have fallen. Flash flooding is ongoing or
  expected to begin shortly. Excessive rainfall over the burn scar
  will result in debris flow moving through the North Saint Charles,
  South Creek, Squirrel Creek, Middle Creek, and North Creek
  Drainages. The debris flow can consist of rock, mud, vegetation and
  other loose materials.

  HAZARD...Life threatening flash flooding. Thunderstorms producing
           flash flooding in and around the Middle Aspen Acres Burn
           Scar.

  SOURCE...Radar indicated.

  IMPACT...Life threatening flash flooding of areas in and around the
           Middle Aspen Acres Burn Scar.

* Some locations that will experience flash flooding include...
  Beulah and San Isabel.

This includes the following high risk locations...
Beulah Water Intake, Northcreek Road county line to Red Mountain Camp
and Northcreek Road from Red Mountain Camp to Beulah.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This is a life-threatening situation for in and around the middle
Aspen Acres Burn Scar. Move away and to higher ground immediately.

&&

LAT...LON 3801 10515 3807 10511 3810 10512 3814 10508
      3815 10503 3813 10498 3811 10498 3808 10487
      3804 10483 3802 10490 3796 10502 3793 10505
      3792 10507 3794 10507 3796 10508 3795 10509

FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE

$$
1 follow-up statement
400 
WGUS75 KPUB 250125
FFSPUB

Flash Flood Statement
National Weather Service Pueblo CO
725 PM MDT Mon Aug 24 2026

COC027-101-250135-
/O.CAN.KPUB.FF.W.0076.000000T0000Z-260825T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Custer CO-Pueblo CO-
725 PM MDT Mon Aug 24 2026

...FLASH FLOOD WARNING FOR THE MIDDLE ASPEN ACRES BURN SCAR IS
CANCELLED FOR EAST CENTRAL CUSTER AND WEST CENTRAL PUEBLO COUNTIES...

The heavy rain has ended. Flooding is no longer expected to pose a
threat. Please continue to heed remaining road closures.

A Flash Flood Watch remains in effect until 900 PM MDT for a portion
of southeast Colorado.

&&

LAT...LON 3801 10515 3807 10511 3810 10512 3814 10508
      3815 10503 3813 10498 3811 10498 3808 10487
      3804 10483 3802 10490 3796 10502 3793 10505
      3792 10507 3794 10507 3796 10508 3795 10509

$$

Simcoe

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Pueblo, CO wrote its last area forecast discussion before this flash flood warning went out at Aug 24, 12:44 PM MDT, 4 hours 49 minutes earlier. Its key messages:

  • Showers and storms continue into tonight, with flash flooding concerns for the Aspen Acres burn scar.
  • Showers and storms will continue across the area each day this week. Heavy rain/flash flood risks continue.
  • Gradual downturn in thunderstorm chances for the end of the week into the weekend, though threat of storms never completely goes away, with at least isolated activity over the mountains possible each day.
Area forecast discussion, Aug 24, 12:44 PM MDT, 4 hours 49 minutes before
Area Forecast Discussion
National Weather Service Pueblo CO
1244 PM MDT Mon Aug 24 2026

.KEY MESSAGES...

- Showers and storms continue into tonight, with flash flooding
concerns for the Aspen Acres burn scar.

- Showers and storms will continue across the area each day this
week. Heavy rain/flash flood risks continue.

- Gradual downturn in thunderstorm chances for the end of the
  week into the weekend, though threat of storms never
  completely goes away, with at least isolated activity over the
  mountains possible each day.

&&

.SHORT TERM /THROUGH TUESDAY/...
Issued at 1243 PM MDT Mon Aug 24 2026

Pattern remains on track from previous estimates, with high pressure
over the area and the monsoon plume in place. Expect another round
of showers and thunderstorms this afternoon into the evening, with
storms forming over the terrain and pushing east into tonight. PWATs
remain high (>100% of normal) across the region, and with the
monsoon tap continuing, storms will be capable of producing heavy
rainfall and flash flooding concerns. The Aspen Acres burn scar will
at high risk, along with low-lying terrain and some urban areas.
Though shear will be on the low-side this afternoon, there should be
sufficient CAPE and moisture for a few stronger to marginally severe
storms, with winds 55-60 mph and some small hail. Main impact
concern from storms will be the flash flood potential, followed by
gusty outflow winds. Highs today will be warm again, with 80s over
the interior valleys and mid-high 90s out east.

Storms move off to the east and dissipate later tonight, though
outflow interactions may keep things percolating a bit later than
the CAMs suggest, which has been a pattern recently.

Largely a rinse and repeat pattern for Tuesday, with a few subtle
changes. Temperatures will be a few degrees cooler, with more cloud
cover early in the day. Storm coverage will be limited early in the
day, but by afternoon diurnal heating and low-level moisture will
help CAPE creep up above 700-800 J/kg. Activity will initiate over
the mountains as usual, pushing southeast as a weak front moves in
beneath a passing disturbance aloft. As this front moves over the
plains, localized increases to shear and lift will allow for some
strong to severe thunderstorms east of the mountains. Will again
need to watch for heavy rain and flash flooding over the burn scars,
while strong outflow winds and some possible hail remain concerns
further east.

&&

.LONG TERM /TUESDAY NIGHT THROUGH SUNDAY/...
Issued at 1243 PM MDT Mon Aug 24 2026

Looking through the rest of the week, Wednesday still appears to be
our most active day. Deeper moisture will allow for higher
instability across the plains, though morning cloud cover may
introduce a cap that delays storms until later. Heavy rain will be a
concern across much of the area, with at least marginally severe
storms possible over the eastern plains again.

The upper ridge will amplify later in the week, slowly shifting to
the west. This will give us a slight warming/drying trend through
Saturday, though scattered showers and storms will still be possible
over and near the terrain each day. The plains may see a few storms
as well, but much more isolated in nature. Flash flooding will
continue to be a concern over the burn scars. For temperatures,
highs will mostly be in the high 80s-90s, with a few areas out east
will likely hit the triple-digit mark.

Later this weekend into early next week, long-range guidance is
showing signs for an upper low to track in from the Pacific
Northwest, which could bring a quick return to cooler and wetter
conditions across the region.

&&

.AVIATION /18Z TAFS THROUGH 18Z TUESDAY/...
Issued at 1121 AM MDT Mon Aug 24 2026

VFR is mostly expected at KALS, KCOS, and KPUB through 24 hours.
Another round of showers and thunderstorms is expected across the
area today, with PROB30s at all terminals late this afternoon into
this evening. Gusts near storms will be capable of producing outflow
winds 30-40 knots. Coverage will be too scattered for high
confidence in rain at the terminals, but if something does drift
overhead, briefly heavy rainfall will be possible. Vis could also
drop into MVFR briefly.

Storms will depart the area after about 03Z this evening, though
showers may linger near KPUB for a bit longer. Light winds and VFR
will then return into Tuesday morning.

&&

.PUB WATCHES/WARNINGS/ADVISORIES...
Flash Flood Watch until 9 PM MDT this evening for COZ079-080-
086.

&&

SHORT TERM...GARBEROGLIO
LONG TERM...GARBEROGLIO
AVIATION...GARBEROGLIO
Hazardous weather outlook, Aug 24, 11:22 AM MDT, 6 hours 11 minutes before
Hazardous Weather Outlook
National Weather Service Pueblo CO
1122 AM MDT Mon Aug 24 2026

COZ058>089-093>099-251730-
Western Mosquito Range/East Lake County Above 11000 Feet-
Leadville Vicinity/Lake County Below 11000 Feet-
Eastern Sawatch Mountains Above 11000 Feet-
Western Chaffee County Between 9000 and 11000 Feet-
Central Chaffee County Below 9000 Feet-
Western Mosquito Range/East Chaffee County Above 9000 Feet-
Saguache County West of Continental Divide Below 10000 Feet-
Saguache County East of Continental Divide Below 10000 Feet-
La Garita Mountains Above 10000 Feet-
Upper Rio Grande Valley/Eastern San Juan Mountains Below
10000 Feet-Eastern San Juan Mountains Above 10000 Feet-
Del Norte Vicinity/Northern San Luis Valley Below 8500 Feet-
Alamosa  Vicinity/Central San Luis Valley Below 8500 Feet-
Southern San Luis Valley-
Northern Sangre de Cristo Mountains Between 8500 And 11000 Feet-
Northern Sangre de Cristo Mountains Above 11000 Feet-
Southern Sangre de Cristo Mountains Between 7500 and 11000 Feet-
Southern Sangre de Cristo Mountains Above 11000 Feet-
Northwestern Fremont County Above 8500 Feet-
Western/Central Fremont County Below 8500 Feet-
Wet Mountain Valley Below 8500 Feet-
Wet Mountains between 6300 and 10000 Feet-
Wet Mountains Above 10000 Feet-
Teller County/Rampart Range Above 7500 Feet/Pikes Peak Between
7500 And 11000 Feet-Pikes Peak Above 11000 Feet-
Canon City Vicinity/Eastern Fremont County-
Northern El Paso County/Monument Ridge/Rampart Range Below
7500 Feet-
Colorado Springs Vicinity/Southern El Paso County/Rampart Range
Below 7400 Feet-Pueblo Vicinity/Pueblo County Below 6300 Feet-
Walsenburg Vicinity/Upper Huerfano River Basin Below 7500 Feet-
Trinidad Vicinity/Western Las Animas County Below 7500 Feet-
Crowley County-La Junta Vicinity/Otero County-
Eastern Las Animas County-Western Kiowa County-
Eastern Kiowa County-Las Animas Vicinity/Bent County-
Lamar Vicinity/Prowers County-Springfield Vicinity/Baca County-
1122 AM MDT Mon Aug 24 2026

This hazardous weather outlook is for portions of central...east
central...south central and southeast Colorado.

.DAY ONE...This Afternoon and Tonight

Showers and thunderstorms will develop over the mountains in the
early afternoon again today, with activity spreading across lower
elevations and the plains from mid-afternoon into the evening. The
main hazard from storms today will be locally heavy rainfall and
flash flooding, with areas over and near the Aspen Acres burn scar
continuing to be susceptible to flooding and debris flows. Storms
today and this evening may also produce gusty winds to 55 mph,
frequent cloud to ground lightning and small hail.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

Showers and thunderstorms are possible each afternoon and evening
through the week, with the greatest coverage of storms from Tuesday
and Wednesday, then drier air begins to decrease storm chances from
Friday into the weekend. Locally heavy rainfall will again be the
main hazard from storms through the period, with a flash flood risk
continuing for the Aspen Acres burn scar into at least mid-week.

.SPOTTER INFORMATION STATEMENT...

Weather conditions that meet reporting criteria for spotters will
be possible over portions of the region.

10/10

In the hours before

Special weather statement, Aug 24, 4:09 PM MDT, 1 hour 24 minutes before
Special Weather Statement
National Weather Service Pueblo CO
409 PM MDT Mon Aug 24 2026

COZ076-077-079-081>086-242300-
Pueblo Vicinity/Pueblo County Below 6300 Feet CO-
Wet Mountains between 6300 and 10000Ft CO-
Western/Central Fremont County Below 8500 Ft CO-
Canon City Vicinity/Eastern Fremont County CO-
Colorado Springs Vicinity/Southern El Paso County/Rampart Range Below
7400 Ft CO-Pikes Peak above 11000 Ft CO-
Northwestern Fremont County  Above 8500Ft CO-
Teller County/Rampart Range above 7500fT/Pike's Peak Between 7500 And
11000 Ft CO-
Northern El Paso County/Monument Ridge/Rampart Range Below 7500 Ft
CO-
409 PM MDT Mon Aug 24 2026

...STRONG THUNDERSTORMS WILL IMPACT EASTERN FREMONT...SOUTHEASTERN
TELLER...EL PASO AND NORTHWESTERN PUEBLO COUNTIES THROUGH 500 PM
MDT...

At 409 PM MDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Gleneagle to near Stratmoor to near
Florence. Movement was east at 25 mph.

HAZARD...Wind gusts of 50 to 55 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Colorado Springs, northern Pueblo, Pueblo Airport, Fountain, Woodland
Park, Monument, Air Force Academy, Manitou Springs, Florence, Palmer
Lake, Cripple Creek, Calhan, Green Mountain Falls, Victor, Hanover,
Peyton, Penrose, Pinon, Security, and Security-Widefield.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3871 10431 3828 10452 3826 10531 3869 10529
      3913 10497 3913 10430
TIME...MOT...LOC 2209Z 277DEG 22KT 3904 10479 3876 10487 3835 10505

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...55 MPH

Simcoe
Special weather statement, Aug 24, 5:01 PM MDT, 32 minutes before
Special Weather Statement
National Weather Service Pueblo CO
501 PM MDT Mon Aug 24 2026

COZ081-083-085-086-242330-
Pueblo Vicinity/Pueblo County Below 6300 Feet CO-
Canon City Vicinity/Eastern Fremont County CO-
Colorado Springs Vicinity/Southern El Paso County/Rampart Range Below
7400 Ft CO-
Teller County/Rampart Range above 7500fT/Pike's Peak Between 7500 And
11000 Ft CO-
501 PM MDT Mon Aug 24 2026

...STRONG THUNDERSTORMS WILL IMPACT EAST CENTRAL FREMONT...
SOUTHEASTERN TELLER...SOUTHERN EL PASO AND NORTHWESTERN PUEBLO
COUNTIES THROUGH 530 PM MDT...

At 501 PM MDT, Doppler radar was tracking a cluster of strong
thunderstorms along a line extending from near Ellicott to 7 miles
northeast of Pinon to Pueblo West. Movement was southeast at 20 mph.

HAZARD...Wind gusts of 50 to 55 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Southeastern Colorado Springs, Pueblo, Pueblo Airport, Fountain,
Hanover, Salt Creek, Pinon, Security, Security-Widefield, Blende,
Fort Carson, Pueblo West, Stratmoor, Pueblo Reservoir, and Pueblo
Depot.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with these storms and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 3870 10412 3836 10431 3812 10460 3848 10496
      3869 10494 3882 10467
TIME...MOT...LOC 2301Z 316DEG 18KT 3876 10441 3854 10453 3833 10473

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...55 MPH

Simcoe

The office that day

Everything else NWS Pueblo, CO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 23, 6:09 PM MDTSpecial Weather StatementPUBOtero36 min
Aug 23, 6:57 PM MDTFlash Flood WatchPUBCuster, Fremont, Huerfano, Pueblo25 hr
Aug 23, 7:46 PM MDTSpecial Weather StatementPUBBaca29 min
Aug 23, 8:19 PM MDTSpecial Weather StatementPUBBent26 min
Aug 23, 8:20 PM MDTSpecial Weather StatementPUBBaca25 min
Aug 24, 1:22 PM MDTFlash Flood WatchPUBCuster, Fremont, Huerfano, Pueblo31 hr
Aug 24, 4:09 PM MDTSpecial Weather StatementPUBEl Paso51 min
Aug 24, 5:01 PM MDTSpecial Weather StatementPUBPueblo29 min
Aug 24, 5:05 PM MDTSevere Thunderstorm WarningPUBEl Paso, Fremont, Pueblo40 min
Aug 24, 5:38 PM MDTSevere Thunderstorm WarningPUBCrowley, El Paso, Pueblo37 min

Nearby

Flash Flood Warnings in Colorado, 2026Every flash flood warning in 2026

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.