Alert archive / Colorado / Flash Flood Warnings in 2026

Flash Flood Warning 17, NWS Pueblo, CO

July 23, 2026Custer County, Pueblo County, Colorado

NWS Pueblo, CO issued this flash flood warning at Jul 23, 2026, 3:13 PM MDT for Custer County, Pueblo County, Colorado. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jul 23, 2026, 3:13 PM MDT (21:13 UTC)
Expired
Jul 23, 2026, 6:15 PM MDT
In force
3 hr
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), 85 km from the middle of the area, began a volume at 21:15 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.

583 
WGUS55 KPUB 232113
FFWPUB
COC027-101-240015-
/O.NEW.KPUB.FF.W.0017.260723T2113Z-260724T0015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Pueblo CO
313 PM MDT Thu Jul 23 2026

The National Weather Service in Pueblo has issued a

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

* Until 615 PM MDT.

* At 313 PM MDT, Doppler radar indicated thunderstorms producing
  heavy rain over the Middle and South Aspen Acres Burn Scar. Up to
  0.2 inches of rain have fallen. The expected rainfall rate is 1
  inch in 1 hour. Additional rainfall amounts up to 1 inch are
  possible in the warned area. Flash flooding is ongoing or expected
  to begin shortly. Excessive rainfall over the burn scar will result
  in debris flow. 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 and South Aspen
           Acres Burn Scar.

  SOURCE...Radar indicated.

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

* Some locations that will experience flash flooding include...
  Rye, San Isabel, Beulah and Colorado City.

This includes the following high risk locations...
Beulah Water Intake.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This is a life threatening situation. Heavy rainfall will cause
extensive and severe flash flooding of creeks...streams...and ditches
in the Middle and South Aspen Acres Burn Scar. Severe debris flows
can also be anticipated across roads. Roads and driveways may be
washed away in places. If you encounter flood waters...climb to
safety.

&&

LAT...LON 3810 10505 3809 10499 3811 10498 3808 10487
      3804 10483 3803 10491 3800 10484 3797 10486
      3793 10485 3791 10491 3793 10498 3792 10502
      3794 10505 3796 10504 3801 10513 3810 10508

FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
EXPECTED RAINFALL RATE...1 INCH IN 1 HOUR

$$
3 follow-up statements
588 
WGUS75 KPUB 232140
FFSPUB

Flash Flood Statement
National Weather Service Pueblo CO
340 PM MDT Thu Jul 23 2026

COC027-101-240015-
/O.CON.KPUB.FF.W.0017.000000T0000Z-260724T0015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Custer CO-Pueblo CO-
340 PM MDT Thu Jul 23 2026

...FLASH FLOOD WARNING FOR THE MIDDLE AND SOUTH ASPEN ACRES BURN SCAR
REMAINS IN EFFECT UNTIL 615 PM MDT THIS EVENING FOR EAST CENTRAL
CUSTER AND WEST CENTRAL PUEBLO COUNTIES...

At 340 PM MDT, Doppler radar indicated thunderstorms producing heavy
rain over the Middle and South Aspen Acres Burn Scar. Up to 0.6
inches of rain have fallen. The expected rainfall rate is 2 inches in
1 hour. Additional rainfall amounts up to 1 inch are possible in the
warned area. Flash flooding is ongoing or expected to begin shortly.
Excessive rainfall over the burn scar will result in debris flow. 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 and South Aspen
         Acres Burn Scar.

SOURCE...Radar indicated.

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

Some locations that will experience flash flooding include...
  Rye, San Isabel, Beulah and Colorado City.

This includes the following high risk locations...
Beulah Water Intake.

This includes the following streams and drainages...
 Saint Charles River, Muddy Creek and its tributaries, Spring Branch
 and South Creek and its tributaries.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This is a life threatening situation. Heavy rainfall will cause
extensive and severe flash flooding of creeks...streams...and ditches
in the Middle and South Aspen Acres Burn Scar. Severe debris flows
can also be anticipated across roads. Roads and driveways may be
washed away in places. If you encounter flood waters...climb to
safety.

&&

LAT...LON 3810 10505 3809 10499 3811 10498 3808 10487
      3804 10483 3803 10491 3800 10484 3797 10486
      3793 10485 3791 10491 3793 10498 3792 10502
      3794 10505 3796 10504 3801 10513 3810 10508

FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
EXPECTED RAINFALL RATE...2 INCHES IN 1 HOUR

$$
183 
WGUS75 KPUB 232300
FFSPUB

Flash Flood Statement
National Weather Service Pueblo CO
500 PM MDT Thu Jul 23 2026

COC027-101-240015-
/O.CON.KPUB.FF.W.0017.000000T0000Z-260724T0015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Custer CO-Pueblo CO-
500 PM MDT Thu Jul 23 2026

...FLASH FLOOD WARNING FOR THE MIDDLE AND SOUTH ASPEN ACRES BURN SCAR
REMAINS IN EFFECT UNTIL 615 PM MDT THIS EVENING FOR EAST CENTRAL
CUSTER AND WEST CENTRAL PUEBLO COUNTIES...

At 500 PM MDT, Doppler radar indicated thunderstorms producing heavy
rain have moved across the Middle and South Aspen Acres Burn Scar. Up
to 0.7 inches of rain have fallen in the Muddy Creek Basin with up to
a half inch falling across a larger portion of the southern Aspen
Acres Burn scars. Flooding impacts will continue until the water has
a chance to recede. Flash flooding is ongoing or expected to begin
shortly. Excessive rainfall over the burn scar will result in debris
flow. 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 and South Aspen
         Acres Burn Scar.

SOURCE...Radar indicated.

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

Some locations that will experience flash flooding include...
  Rye, San Isabel, Beulah and Colorado City.

This includes the following high risk locations...
Beulah Water Intake.

This includes the following streams and drainages...
 Saint Charles River, Muddy Creek and its tributaries, Spring Branch
 and South Creek and its tributaries.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This is a life threatening situation. Heavy rainfall will cause
extensive and severe flash flooding of creeks...streams...and ditches
in the Middle and South Aspen Acres Burn Scar. Severe debris flows
can also be anticipated across roads. Roads and driveways may be
washed away in places. If you encounter flood waters...climb to
safety.

&&

LAT...LON 3810 10505 3809 10499 3811 10498 3808 10487
      3804 10483 3803 10491 3800 10484 3797 10486
      3793 10485 3791 10491 3793 10498 3792 10502
      3794 10505 3796 10504 3801 10513 3810 10508

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

$$
700 
WGUS75 KPUB 240015
FFSPUB

Flash Flood Statement
National Weather Service Pueblo CO
615 PM MDT Thu Jul 23 2026

COC027-101-240025-
/O.EXP.KPUB.FF.W.0017.000000T0000Z-260724T0015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Custer CO-Pueblo CO-
615 PM MDT Thu Jul 23 2026

...FLASH FLOOD WARNING FOR THE MIDDLE AND SOUTH ASPEN ACRES BURN SCAR
WILL EXPIRE AT 615 PM MDT THIS EVENING FOR EAST CENTRAL CUSTER AND
WEST CENTRAL PUEBLO COUNTIES...

The heavy rain has ended. Flooding is no longer expected to pose a
threat although some additional light rain will be possible through 7
PM. Please continue to heed remaining road closures.

A Flash Flood Watch remains in effect until 1200 AM MDT for a portion
of southeast Colorado.

&&

LAT...LON 3810 10505 3809 10499 3811 10498 3808 10487
      3804 10483 3803 10491 3800 10484 3797 10486
      3793 10485 3791 10491 3793 10498 3792 10502
      3794 10505 3796 10504 3801 10513 3810 10508

$$

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 Jul 23, 2:42 PM MDT, 31 minutes earlier. Its key messages:

  • Flash flood threat continues through this evening as widespread showers and thunderstorms are expected across the region.
  • Hot temperatures continue this weekend, along with mountain rain.
Area forecast discussion, Jul 23, 2:42 PM MDT, 31 minutes before
Area Forecast Discussion
National Weather Service Pueblo CO
242 PM MDT Thu Jul 23 2026

.KEY MESSAGES...

- Flash flood threat continues through this evening as
  widespread showers and thunderstorms are expected across the
  region.

- Hot temperatures continue this weekend, along with mountain
  rain.

&&

.SHORT TERM /THROUGH FRIDAY/...
Issued at 239 PM MDT Thu Jul 23 2026

Tonight: Active weather is expected heading into Thursday
evening for parts of south central and southeastern Colorado. A
wave will be passing over the region during the evening hours,
bringing a modest uptick in forcing and support. These factors,
in combination with high moisture in place, will allow for
scattered to numerous showers and thunderstorms to develop
during the evening hours and into the early overnight hours. The
greatest coverage of precipitation is expected across the
eastern plains though, where outflows from earlier storms will
help to initiate further storm development. Heavy rain, frequent
lighting, and strong outflow winds to around 50 mph will be
possible with any more organized thunderstorm. With that all
said, as the wave pushes east and exits, any showers and storms
across the area are expected to dissipate during the mid
overnight hours, with dry conditions by Friday morning. Outside
of all of that, mostly cloudy skies early tonight with give way
to mostly clear skies by Friday morning as the wave exits, with
winds remaining light outside of storms, generally less than 10
mph. Looking at temperatures, another mild July night is
anticipated given the high moisture content. Lows for the plains
will be in the mid 60s, in the mid 50s to low 60s for the
valleys, and in the mid 40s to low 50s for the mountains.

Tomorrow: For Friday, active weather continues for south
central and southeastern Colorado. With the shortwave gone, the
ridge of high pressure will quickly reestablish itself as the
dominant synoptic feature around the four corners region. Given
this, weak and nebulous flow and support will be in place for
south central and southeastern Colorado. However, abundant
moisture will remain in place, and this, along with diurnal
terrain circulations, will allow for scattered to numerous
afternoon showers and storms to blossom along the higher
terrain. In addition, some spillage across the valleys is
anticipated as outflows push off the terrain, though generally
lesser in coverage, with more isolated to scattered showers and
storms. The plains are expected to remain mostly dry, though
can't rule out an isolated shower or storm along the I-25
corridor area. Beyond all of that, mostly clear skies early will
become partly cloudy during the afternoon hours, with winds
still remaining fairly light, around and less than 10 mph,
outside of thunderstorms. As for temperatures, another warm day
is in store for south central and southeastern Colorado. The
plains will warm into the mid to upper 90s, the valleys into the
80s to low 90s, and the mountains into the upper 50s to mid
70s.

&&

.LONG TERM /FRIDAY NIGHT THROUGH WEDNESDAY/...
Issued at 1229 AM MDT Thu Jul 23 2026

This Weekend Onwards...

As the upper high moves overhead, flow weakens aloft. Forcing for
storms will significantly weaken, though recycling monsoon moisture
will be plentiful enough to keep afternoon showers and storms going
over the mountains. Meanwhile, the plains will dry out again, with
triple-digit temperatures returning. Current long-range guidance
suggests a wetter and potentially cooler (or at least less hot)
pattern as we move into next week.

&&

.AVIATION /18Z TAFS THROUGH 18Z FRIDAY/...
Issued at 1121 AM MDT Thu Jul 23 2026

KCOS, KPUB, and KALS: VFR conditions are expected over the next 24
hours. Overall winds are expected to remain light, around and less
than 10 knots, for this TAF period. With that said, showers and
thunderstorms are expected to blossom this afternoon and evening,
which could bring strong outflow winds to any of the TAF sites.
These storms may also bring heavy rain fall and sudden drops in
visibility. Outside of that, mid to high level clouds will increase
this afternoon and persist into the evening hours.

&&

.PUB WATCHES/WARNINGS/ADVISORIES...
Flash Flood Watch until midnight MDT tonight for COZ079-080-
086.

&&

SHORT TERM...SIMCOE/RODRIGUEZ
LONG TERM...GARBEROGLIO/RODRIGUEZ
AVIATION...SIMCOE
Hazardous weather outlook, Jul 23, 11:30 AM MDT, 3 hours 43 minutes before
Hazardous Weather Outlook
National Weather Service Pueblo CO
1130 AM MDT Thu Jul 23 2026

COZ058>089-093>099-241730-
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-
1130 AM MDT Thu Jul 23 2026

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

.DAY ONE...This Afternoon and Tonight

Widespread to numerous showers and thunderstorms are expected this
afternoon and this evening. Best coverage will be over and near the
mountains, with more scattered precipitation over the eastern
plains.

Biggest concern for today will be flash flooding, mainly over the
Aspen Acres and Willow burn areas, along with any other susceptible
areas like the Chalk Cliffs, alongside low-lying urban areas. Heavy
rainfall will be possible with any storms.

One or two stronger thunderstorms may be possible over the eastern
plains later this afternoon, with gusty outflow to 60 mph and
hail up to 1 inch in diameter.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

Showers and storms will continue over the higher terrain on Friday,
with little to no convection expected over the eastern plains.
However, if a storm moves over a burn scar flash flooding will still
be a concern.

Mountain rain will continue throughout the weekend, though the
plains will remain generally dry and hot with temperatures over 100
degrees. As of now, this pattern looks to persist into early next
week.

.SPOTTER INFORMATION STATEMENT...

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

GARBEROGLIO/GARBEROGLIO

In the hours before

Special weather statement, Jul 23, 11:49 AM MDT, 3 hours 24 minutes before
Special Weather Statement
National Weather Service Pueblo CO
1149 AM MDT Thu Jul 23 2026

COZ088-094-231815-
Eastern Las Animas County CO-
Trinidad Vicinity/Western Las Animas County Below 7500 Ft CO-
1149 AM MDT Thu Jul 23 2026

...A STRONG THUNDERSTORM WILL IMPACT SOUTH CENTRAL LAS ANIMAS COUNTY
THROUGH 1215 PM MDT...

At 1149 AM MDT, Doppler radar was tracking a strong thunderstorm 11
miles northwest of Trinchera, or 17 miles east of Trinidad, moving
east at 15 mph.

HAZARD...Wind gusts up to 40 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor hail damage to vegetation is
         possible.

Locations impacted include...
Trinchera.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3712 10429 3724 10425 3725 10398 3713 10397
      3703 10404
TIME...MOT...LOC 1749Z 285DEG 11KT 3715 10419

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH

Simcoe
Special weather statement, Jul 23, 1:56 PM MDT, 1 hour 17 minutes before
Special Weather Statement
National Weather Service Pueblo CO
156 PM MDT Thu Jul 23 2026

COZ094-099-232030-
Springfield Vicinity/Baca County CO-Eastern Las Animas County CO-
156 PM MDT Thu Jul 23 2026

...A STRONG THUNDERSTORM WILL IMPACT WEST CENTRAL BACA AND EAST
CENTRAL LAS ANIMAS COUNTIES THROUGH 230 PM MDT...

At 156 PM MDT, Doppler radar was tracking a strong thunderstorm 16
miles northeast of Kim, or 32 miles west of Springfield, moving
northeast at 15 mph.

HAZARD...Wind gusts up to 50 mph and half inch hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor hail damage to vegetation is
         possible.

This storm will remain over mainly rural areas of west central Baca
and east central Las Animas Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3737 10325 3748 10333 3763 10313 3751 10301
      3740 10295
TIME...MOT...LOC 1956Z 242DEG 14KT 3746 10321

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...50 MPH

Simcoe
Special weather statement, Jul 23, 2:38 PM MDT, 35 minutes before
Special Weather Statement
National Weather Service Pueblo CO
238 PM MDT Thu Jul 23 2026

COZ097-099-232115-
Springfield Vicinity/Baca County CO-
Las Animas Vicinity/Bent County CO-
238 PM MDT Thu Jul 23 2026

...A STRONG THUNDERSTORM WILL IMPACT NORTHWESTERN BACA AND
SOUTHEASTERN BENT COUNTIES THROUGH 315 PM MDT...

At 238 PM MDT, Doppler radar was tracking a strong thunderstorm 8
miles north of Pritchett, or 16 miles west of Springfield, moving
northeast at 15 mph.

HAZARD...Wind gusts up to 50 mph and penny size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor hail damage to vegetation is
         possible.

This storm will remain over mainly rural areas of northwestern Baca
and southeastern Bent Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3740 10293 3750 10301 3768 10282 3747 10261
TIME...MOT...LOC 2038Z 238DEG 14KT 3749 10291

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...50 MPH

Simcoe

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 22, 6:42 PM MDTFlash Flood Warning Considerable damage threatPUBPueblo3 hr
Jul 23, 11:49 AM MDTSpecial Weather StatementPUBLas Animas26 min
Jul 23, 1:56 PM MDTSpecial Weather StatementPUBBent34 min
Jul 23, 2:38 PM MDTSpecial Weather StatementPUBBaca37 min
Jul 23, 3:19 PM MDTSpecial Weather StatementPUBBaca41 min
Jul 23, 4:19 PM MDTSpecial Weather StatementPUBPueblo41 min
Jul 23, 4:25 PM MDTSpecial Weather StatementPUBPueblo35 min
Jul 23, 5:04 PM MDTSpecial Weather StatementPUBOtero41 min
Jul 23, 5:36 PM MDTSpecial Weather StatementPUBOtero39 min
Jul 23, 5:39 PM MDTSpecial Weather StatementPUBEl Paso51 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.