Alert archive / Colorado / Flash Flood Warnings in 2026

Flash Flood Warning 85, NWS Pueblo, CO

August 27, 2026Huerfano County, Colorado

NWS Pueblo, CO issued this flash flood warning at Aug 27, 2026, 5:32 PM MDT for Huerfano County, Colorado. It was in force for 3 hr. 2 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Aug 27, 2026, 5:32 PM MDT (23:32 UTC)
Expired
Aug 27, 2026, 8:30 PM MDT
In force
3 hr
Issued by
NWS Pueblo, CO
Area
Storm-based polygon
Flood severity
None

County Huerfano County, CO

The radar

The Pueblo radar (KPUX), 108 km from the middle of the area, began a volume at 23:33 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.

What was reported inside it

TimeReportWhereRemark
Aug 27, 5:50 PM MDTFLASH FLOODWalsenburg, COPine street is impassible, HWY 160 has flooding, but still passable.
Aug 27, 6:06 PM MDTFLASH FLOOD1 W Walsenburg, COStreets, gutters and sidewalks are flooded, debris everywhere. 1.67 inches of rain in 60 minutes.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched 2 storm reports to this flash flood warning; the first came 18 minutes after it went out.

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.

857 
WGUS55 KPUB 272332
FFWPUB
COC055-280230-
/O.NEW.KPUB.FF.W.0085.260827T2332Z-260828T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Pueblo CO
532 PM MDT Thu Aug 27 2026

The National Weather Service in Pueblo has issued a

* Flash Flood Warning for...
  Central Huerfano County in southeastern Colorado...

* Until 830 PM MDT.

* At 532 PM MDT, Doppler radar indicated thunderstorms producing
  heavy rain across the warned area. Between 1 and 2 inches of rain
  have fallen. Flash flooding is ongoing or expected to begin
  shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Radar indicated.

  IMPACT...Flash flooding of small creeks and streams, urban areas,
           highways, streets and underpasses as well as other poor
           drainage and low-lying areas.

* Some locations that will experience flash flooding include...
  Walsenburg.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Be aware of your surroundings and do not drive on flooded roads.

Please report observed flooding to local emergency services or law
enforcement and request they pass this information to the National
Weather Service when you can do so safely.

&&

LAT...LON 3771 10499 3761 10498 3753 10488 3755 10473
      3767 10469 3773 10483 3773 10486

FLASH FLOOD...RADAR INDICATED

$$
2 follow-up statements
273 
WGUS75 KPUB 272353
FFSPUB

Flash Flood Statement
National Weather Service Pueblo CO
553 PM MDT Thu Aug 27 2026

COC055-280230-
/O.CON.KPUB.FF.W.0085.000000T0000Z-260828T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Huerfano CO-
553 PM MDT Thu Aug 27 2026

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 830 PM MDT THIS
EVENING FOR CENTRAL HUERFANO COUNTY...

At 553 PM MDT, emergency management reported thunderstorms producing
heavy rain in Walsenburg. Between 1 and 2 inches of rain have fallen.
Flash flooding is already occurring.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Emergency management reported.

IMPACT...Flash flooding of small creeks and streams, urban areas,
         highways, streets and underpasses as well as other poor
         drainage and low-lying areas.

Some locations that will experience flash flooding include...
  Walsenburg.

Emergency Managers reported Pine Street in Walsenburg is impassible
due to flash flooding.  Highway 160 also has flooding.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Be aware of your surroundings and do not drive on flooded roads.

Please report observed flooding to local emergency services or law
enforcement and request they pass this information to the National
Weather Service when you can do so safely.

&&

LAT...LON 3771 10499 3761 10498 3753 10488 3755 10473
      3767 10469 3773 10483 3773 10486

FLASH FLOOD...OBSERVED

$$

kam
933 
WGUS75 KPUB 280123
FFSPUB

Flash Flood Statement
National Weather Service Pueblo CO
723 PM MDT Thu Aug 27 2026

COC055-280230-
/O.CON.KPUB.FF.W.0085.000000T0000Z-260828T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Huerfano CO-
723 PM MDT Thu Aug 27 2026

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 830 PM MDT THIS
EVENING FOR CENTRAL HUERFANO COUNTY...

At 723 PM MDT, Doppler radar indicated that the rain has ended over
the Walsenburg area. However, high water and ponding of water is
still likely ongoing in and around the Walsenburg region. Do not
drive where water covers the road. Obey and roadway closures.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Radar indicated.

IMPACT...Flash flooding of small creeks and streams, urban areas,
         highways, streets and underpasses as well as other poor
         drainage and low-lying areas.

Some locations that will experience flash flooding include...
  Walsenburg.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Be aware of your surroundings and do not drive on flooded roads.



&&

LAT...LON 3771 10499 3761 10498 3753 10488 3755 10473
      3767 10469 3773 10483 3773 10486

FLASH FLOOD...RADAR INDICATED

$$

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 27, 5:29 PM MDT, 3 minutes earlier. Its key messages:

  • Showers and storms into tonight. Flash flooding possible for the Aspen Acres burn scar, with a few severe storms possible along I-25.
  • Daily showers and storms will continue over the mountains each day into next week. The eastern plains will be a bit warmer and much drier.
Area forecast discussion, Aug 27, 5:29 PM MDT, 3 minutes before
Area Forecast Discussion
National Weather Service Pueblo CO
529 PM MDT Thu Aug 27 2026

.KEY MESSAGES...

- Showers and storms into tonight. Flash flooding possible for the
Aspen Acres burn scar, with a few severe storms possible along I-25.

- Daily showers and storms will continue over the mountains each
  day into next week. The eastern plains will be a bit warmer
  and much drier.

&&

.SHORT TERM /THROUGH FRIDAY/...
Issued at 109 PM MDT Thu Aug 27 2026

Yet another round of scattered to widespread thunderstorms this
afternoon and evening. Storms will continue forming across the
higher terrain through mid-afternoon, pushing southeast into this
evening. Latest CAMs and mesoanalysis, as of 130PM, show 1000-1500
J/kg of CAPE across our eastern plains, with 25-30 knots or so of
shear. Dewpoint depressions are on the large side, with dewpoints in
the 40s-50s along I-25, and subsequently there's a good bit of DCAPE
out there as well.

As storms shift to the southeast, they should intensify through the
next several hours. Brief periods of moderate to heavy rainfall will
be possible, along with gusty outflow to around 60 mph and
marginally severe hail, mainly along I-25. Most storms won't make it
too far east before dissipating, though once they gust out there's
always the chance for some lingering storms from outflow/boundary
interactions.

Storms will dissipate during the overnight hours, lingering longest
over our far southern plains. Moving into Friday, the upper ridge
flattens a bit over our region. Westerly flow aloft will still bring
some monsoon moisture to the mountains, allowing for scattered
afternoon storms. However, drier air will move onto the eastern
plains, limiting precipitation potential anywhere east of I-25.
Flash flooding will still be a concern over the Aspen Acres burn
scar, but otherwise thunderstorms will be more isolated in nature,
largely just producing breezy outflow winds, lightning, and brief
periods of moderate to occasionally heavy rainfall. Temperatures
will warm across the area, with mid-80s over the valleys and high-
90s over the eastern plains.

&&

.LONG TERM /FRIDAY NIGHT THROUGH THURSDAY/...
Issued at 109 PM MDT Thu Aug 27 2026

The upper ridge will continue slowly shifting east this weekend,
with strengthening southwest flow aloft. Temperatures will continue
to warm, with the far eastern plains hitting the 100-degree mark in
some places. Meanwhile, monsoon moisture will return the our
mountains, allowing for increased coverage of afternoon
showers/thunderstorms over the Continental Divide, with isolated to
scattered storms over our eastern mountains. Mid-level steering flow
will likely push a few storms onto the I-25 corridor as well, but
lingering dry air and downsloping winds near the surface will keep
most activity away from the eastern plains.

Late Sunday into early Monday, and upper wave will swing past to our
north, sending a cold front south across the eastern plains.
Activity over the plains remains limited, and temperatures behind
the front only cool a few degrees in the latest guidance. The
mountains will continue to see daily showers and storms. Looking
further into next week, long-range models suggest a slightly drier
pattern returning as the monsoon plume shifts a bit further to our
west.

&&

.AVIATION /00Z TAFS THROUGH 00Z SATURDAY/...
Issued at 527 PM MDT Thu Aug 27 2026

VFR conditions are anticipated during the next 24 hours at all 3 taf
sites, KPUB, KALS and KCOS. Surface Winds will be light and
diurnally driven.

With westerly flow returning to the region aloft, weak lee
troughing is expected to develop and tsra activity in the
regions of the TAF sites will be few and far between.

&&

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

&&

SHORT TERM...GARBEROGLIO
LONG TERM...GARBEROGLIO
AVIATION...HODANISH
Hazardous weather outlook, Aug 27, 11:19 AM MDT, 6 hours 13 minutes before
Hazardous Weather Outlook
National Weather Service Pueblo CO
1119 AM MDT Thu Aug 27 2026

COZ058>089-093>099-281730-
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-
1119 AM MDT Thu Aug 27 2026

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

.DAY ONE...This Afternoon and Tonight

Scattered showers and thunderstorms will develop over the higher
terrain this afternoon, with activity again spreading across lower
elevations and the plains from mid-afternoon into the evening. The
main hazard from storms again 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. One
or two storms along the I-25 corridor may become strong to briefly
severe late this afternoon and into the evening, with winds to 60
mph and quarter sized hail possible. Many storms today and this
evening may produce gusty winds of 50 to 60 mph, frequent cloud to
ground lightning and small hail

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

Isolated to scattered showers and thunderstorms are possible Friday
afternoon and evening mainly over the mountains, though storm
coverage and strength will generally be less than the past several
days. Moisture gradually returns to the mountains starting Saturday
and continuing into early next week, with scattered to numerous
showers and thunderstorms over the high terrain each day. The
heaviest rainfall during this period will be along the Continental
Divide, with lighter rainfall over the valleys and eastern mountain
ranges. On the plains, mainly isolated storms are expected. Any
storms over the next several days will have the potential to produce
frequent cloud to ground lightning, gusty winds to 55 mph, small
hail and brief heavy rainfall.

.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

Local storm report, Aug 27, 4:25 PM MDT, 1 hour 7 minutes before
Preliminary Local Storm Report
National Weather Service Pueblo CO
425 PM MDT Thu Aug 27 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0419 PM     Flash Flood      3 NE San Isabel         38.02N 105.01W
08/27/2026                   Pueblo             CO   Emergency Mngr

            10 inches of water coming down and across
            the dirt portion of 12 mile road.

&&

kam
Local storm report, Aug 27, 4:28 PM MDT, 1 hour 4 minutes before
Preliminary Local Storm Report
National Weather Service Pueblo CO
428 PM MDT Thu Aug 27 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0355 PM     Tornado          3 NE Rosita             38.13N 105.30W
08/27/2026                   Custer             CO   Public

            Relayed via Fremont County dispatch,
            location estimated.

&&

kam
Special weather statement, Aug 27, 4:30 PM MDT, 1 hour 2 minutes before
Special Weather Statement
National Weather Service Pueblo CO
430 PM MDT Thu Aug 27 2026

COZ079-080-086-087-272300-
Pueblo Vicinity/Pueblo County Below 6300 Feet CO-
Wet Mountains between 6300 and 10000Ft CO-
Walsenburg Vicinity/Upper Huerfano River Basin Below 7500 Ft CO-
Wet Mountains above 10000 Ft CO-
430 PM MDT Thu Aug 27 2026

...A STRONG THUNDERSTORM WILL IMPACT NORTH CENTRAL HUERFANO AND
SOUTHWESTERN PUEBLO COUNTIES THROUGH 500 PM MDT...

At 430 PM MDT, Doppler radar was tracking a strong thunderstorm near
Greenhorn Mountain, or 32 miles southwest of Pueblo, moving southeast
at 15 mph.

HAZARD...Wind gusts up to 40 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.

Locations impacted include...
Greenhorn Mountain, Rye, and Colorado City.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

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

&&

LAT...LON 3792 10503 3795 10496 3787 10476 3776 10482
      3771 10493
TIME...MOT...LOC 2230Z 310DEG 12KT 3786 10494

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...40 MPH

kam
Special weather statement, Aug 27, 5:01 PM MDT, 31 minutes before
Special Weather Statement
National Weather Service Pueblo CO
501 PM MDT Thu Aug 27 2026

COZ079-087-272330-
Wet Mountains between 6300 and 10000Ft CO-
Walsenburg Vicinity/Upper Huerfano River Basin Below 7500 Ft CO-
501 PM MDT Thu Aug 27 2026

...STRONG THUNDERSTORMS WILL IMPACT CENTRAL HUERFANO COUNTY THROUGH
530 PM MDT...

At 501 PM MDT, Doppler radar was tracking a cluster of strong
thunderstorms over Farisita, or 42 miles southwest of Pueblo, moving
southeast at 10 mph.

HAZARD...Wind gusts up to 40 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.

Locations impacted include...
Walsenburg, Farisita, and northeastern Spring Burn Scar north of
Highway 160.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

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

&&

LAT...LON 3777 10518 3784 10505 3763 10468 3751 10475
      3750 10491
TIME...MOT...LOC 2301Z 315DEG 8KT 3777 10508

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...40 MPH

kam
Local storm report, Aug 27, 5:24 PM MDT, 8 minutes before
Preliminary Local Storm Report
National Weather Service Pueblo CO
524 PM MDT Thu Aug 27 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0524 PM     Rain             1 WSW Rye               37.91N 104.95W
08/27/2026  M1.08 Inch       Pueblo             CO   CO-OP Observer

            Storm total.

&&

kam
Special weather statement, Aug 27, 5:27 PM MDT, 5 minutes before
Special Weather Statement
National Weather Service Pueblo CO
527 PM MDT Thu Aug 27 2026

COZ072-074-087-088-280000-
Southern Sangre De Cristo Mountains Between 7500 and 11000 Ft CO-
Walsenburg Vicinity/Upper Huerfano River Basin Below 7500 Ft CO-
Northern Sangre de Cristo Mountains Between 8500 And 11000 Ft CO-
Trinidad Vicinity/Western Las Animas County Below 7500 Ft CO-
527 PM MDT Thu Aug 27 2026

...STRONG THUNDERSTORMS WILL IMPACT CENTRAL HUERFANO...NORTHEASTERN
COSTILLA AND NORTHWESTERN LAS ANIMAS COUNTIES THROUGH 600 PM MDT...

At 527 PM MDT, Doppler radar was tracking a cluster of strong
thunderstorms over Walsenburg, or 35 miles northwest of Trinidad,
moving southeast at 15 mph.

HAZARD...Wind gusts of 50 to 55 mph and nickel 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...
Walsenburg, La Veta, La Veta Pass, Spring Burn Scar north of Highway
160, and northern Spring Burn Scar south of Highway 160 in Huerfano
county.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

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

&&

LAT...LON 3770 10524 3775 10485 3786 10469 3770 10447
      3744 10466 3751 10514
TIME...MOT...LOC 2327Z 302DEG 15KT 3762 10479

MAX HAIL SIZE...0.88 IN
MAX WIND GUST...55 MPH

kam

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 26, 6:05 PM MDTSpecial Weather StatementPUBKiowa25 min
Aug 26, 6:15 PM MDTSpecial Weather StatementPUBHuerfano45 min
Aug 26, 6:28 PM MDTSpecial Weather StatementPUBLas Animas32 min
Aug 26, 6:35 PM MDTFlash Flood WarningPUBHuerfano2 hr
Aug 26, 6:59 PM MDTSpecial Weather StatementPUBLas Animas31 min
Aug 26, 7:31 PM MDTSpecial Weather StatementPUBLas Animas29 min
Aug 26, 7:44 PM MDTSpecial Weather StatementPUBOtero31 min
Aug 26, 8:45 PM MDTSpecial Weather StatementPUBOtero30 min
Aug 26, 10:31 PM MDTSpecial Weather StatementPUBBent29 min
Aug 26, 10:54 PM MDTSevere Thunderstorm WarningPUBKiowa36 min
Aug 26, 11:04 PM MDTSpecial Weather StatementPUBKiowa26 min
Aug 27, 12:11 AM MDTSpecial Weather StatementPUBBaca34 min
Aug 27, 2:19 PM MDTSpecial Weather StatementPUBEl Paso26 min
Aug 27, 2:30 PM MDTSpecial Weather StatementPUBFremont30 min
Aug 27, 3:04 PM MDTSpecial Weather StatementPUBFremont26 min
Aug 27, 3:23 PM MDTFlash Flood Warning Considerable damage threatPUBCuster, Pueblo3 hr
Aug 27, 3:42 PM MDTSpecial Weather StatementPUBCuster33 min
Aug 27, 3:50 PM MDTSpecial Weather StatementPUBCuster25 min
Aug 27, 3:53 PM MDTSpecial Weather StatementPUBHuerfano37 min
Aug 27, 3:58 PM MDTTornado Warning Tornado observedPUBCuster14 min
Aug 27, 4:07 PM MDTSpecial Weather StatementPUBHuerfano23 min
Aug 27, 4:30 PM MDTSpecial Weather StatementPUBHuerfano30 min
Aug 27, 4:55 PM MDTSevere Thunderstorm WarningPUBHuerfano, Pueblo35 min
Aug 27, 5:01 PM MDTSpecial Weather StatementPUBHuerfano29 min
Aug 27, 5:14 PM MDTFlash Flood WarningPUBHuerfano, Pueblo71 min
Aug 27, 5:27 PM MDTSpecial Weather StatementPUBHuerfano33 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; local storm reports from the same archive; radar from the NEXRAD Level II archive.