Alert archive / Colorado / Red Flag Warnings in 2026

Red Flag Warning 50, NWS Pueblo, CO

April 27, 20265 counties in Colorado

NWS Pueblo, CO issued this red flag warning at Apr 27, 2026, 1:16 PM MDT for 5 counties in Colorado. It took effect at Apr 28, 2026, 12:00 PM MDT. It was in force for 7 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Apr 27, 2026, 1:16 PM MDT (19:16 UTC)
In effect from
Apr 28, 2026, 12:00 PM MDT
Expired
Apr 28, 2026, 7:00 PM MDT
In force
7 hr
Issued by
NWS Pueblo, CO

Counties Alamosa County, CO, Conejos County, CO, Costilla County, CO, Rio Grande County, CO, Saguache County, CO

The radar

The Pueblo radar (KPUX), 190 km from the middle of the area, began a volume at 19:20 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.

The text

As transmitted.

235 
WWUS85 KPUB 271916
RFWPUB

URGENT - FIRE WEATHER MESSAGE
National Weather Service Pueblo CO
116 PM MDT Mon Apr 27 2026

COZ224-281130-
/O.NEW.KPUB.FW.W.0050.260428T1800Z-260429T0100Z/
San Luis Valley Including Alamosa/Del Norte/Fort Garland/Saguache-
116 PM MDT Mon Apr 27 2026

...RED FLAG WARNING IN EFFECT FROM NOON TO 7 PM MDT TUESDAY FOR
FOR FIRE WEATHER ZONE 224...

The National Weather Service in Pueblo has issued a Red Flag
Warning for gusty winds and low relative humidity, which is in 
effect from noon to 7 PM MDT Tuesday.

* AFFECTED AREA...Fire Weather Zone 224.

* TIMING...From noon to 7 PM MDT Tuesday.

* WINDS...West 15 to 25 mph with gusts up to 40 mph.

* RELATIVE HUMIDITY...As low as 14 percent.

* IMPACTS...Fires will catch and spread quickly. Exercise 
  extreme caution with any outdoor burning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are either occurring now, or will shortly. A combination of
strong winds, low relative humidity, and warm temperatures can
contribute to extreme fire behavior.

&&

$$
3 follow-up statements
340 
WWUS85 KPUB 280739
RFWPUB

URGENT - FIRE WEATHER MESSAGE
National Weather Service Pueblo CO
139 AM MDT Tue Apr 28 2026

COZ224-282345-
/O.CON.KPUB.FW.W.0050.260428T1800Z-260429T0100Z/
San Luis Valley Including Alamosa/Del Norte/Fort Garland/Saguache-
139 AM MDT Tue Apr 28 2026

...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 7 PM MDT
THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE
WEATHER ZONE 224...

* AFFECTED AREA...Fire Weather Zone 224.

* TIMING...From noon today to 7 PM MDT this evening.

* WINDS...West 15 to 25 mph with gusts up to 35 mph.

* RELATIVE HUMIDITY...As low as 12 percent.

* IMPACTS...Fires will catch and spread quickly. Exercise 
  extreme caution with any outdoor burning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are either occurring now, or will shortly. A combination of
strong winds, low relative humidity, and warm temperatures can
contribute to extreme fire behavior.

&&

$$
439 
WWUS85 KPUB 281738
RFWPUB

URGENT - FIRE WEATHER MESSAGE
National Weather Service Pueblo CO
1138 AM MDT Tue Apr 28 2026

COZ224-290100-
/O.CON.KPUB.FW.W.0050.260428T1800Z-260429T0100Z/
San Luis Valley Including Alamosa/Del Norte/Fort Garland/Saguache-
1138 AM MDT Tue Apr 28 2026

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM MDT THIS EVENING
FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE
224...

* AFFECTED AREA...Fire Weather Zone 224.

* TIMING...Until 7 PM MDT this evening.

* WINDS...West 15 to 25 mph with gusts up to 40 mph.

* RELATIVE HUMIDITY...As low as 11 percent.

* IMPACTS...Fires will catch and spread quickly. Avoid any 
  outdoor burning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are either occurring now, or will shortly. A combination of
strong winds, low relative humidity, and warm temperatures can
contribute to extreme fire behavior.

&&

$$
791 
WWUS85 KPUB 290053
RFWPUB

URGENT - FIRE WEATHER MESSAGE
National Weather Service Pueblo CO
653 PM MDT Tue Apr 28 2026

COZ224-290200-
/O.EXP.KPUB.FW.W.0050.000000T0000Z-260429T0100Z/
San Luis Valley Including Alamosa/Del Norte/Fort Garland/Saguache-
653 PM MDT Tue Apr 28 2026

...RED FLAG WARNING WILL EXPIRE AT 7 PM MDT THIS EVENING FOR FIRE
WEATHER ZONE 224...

Winds across the San Luis Valley continue to diminish, as
temperatures cool and humidity levels increase. With critical fire
weather conditions expected, the Red Flag Warning will expire at 
7 pm MDT.

$$

What forecasters said that day

The local office's own words before this red flag 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 red flag warning went out at Apr 27, 11:52 AM MDT, 1 hour 24 minutes earlier. Its key messages:

  • Isolated to scattered showers and thunderstorms today through Wednesday, with the best coverage along and north of Highway 50.
  • Spotty critical fire weather conditions across portions of Huerfano County today, with potentially more widespread conditions across the interior valleys and gap flow areas Tuesday and Wednesday.
  • Cooler and unsettled Thursday and Friday with increasing chances of widespread precipitation.
  • Warmer and drier for next weekend.
Area forecast discussion, Apr 27, 11:52 AM MDT, 1 hour 24 minutes before
Area Forecast Discussion
National Weather Service Pueblo CO
1152 AM MDT Mon Apr 27 2026

.KEY MESSAGES...

- Isolated to scattered showers and thunderstorms today through
  Wednesday, with the best coverage along and north of Highway
  50.

- Spotty critical fire weather conditions across portions of
  Huerfano County today, with potentially more widespread
  conditions across the interior valleys and gap flow areas
  Tuesday and Wednesday.

- Cooler and unsettled Thursday and Friday with increasing
  chances of widespread precipitation.

- Warmer and drier for next weekend.

&&

.SHORT TERM /THROUGH TONIGHT/...
Issued at 140 AM MDT Mon Apr 27 2026

Current water vapor imagery and upper air analysis continues to
indicate moderate southwest flow aloft across the region, with a
broad upper trough in place across the West Coast. Water vapor
imagery also indicates one embedded wave translating across the
the Northern Rockies at this time, with another wave moving across
the Great Basin. Regional radars have a few showers lifting out
across the northeast plains, with more scattered showers lifting
out across western Colorado at this time.

There are no big changes to the ongoing forecast through tonight,
as latest  model data continues to indicate moderate west to
southwest flow in place across the region, as the Great Basin
embedded wave continues to translate across Western Colorado and
into the Northern Rockies through tonight. Increasing moisture
and lift ahead of the wave will bring another round of showers and
thunderstorms across the region this afternoon and evening, with
the best coverage expected along and north of the Highway 50
Corridor. Some light snow accumulations of 1 to 2 inches will be
possible across the higher peaks of the Central mtns into the Pikes
Peak region, with snow levels aoa 9,000 feet. Further east across
the plains, tonight's passing wave across the Northern Rockies sends
another weak northerly surge across the plains through the morning,
with low level flow becoming more east to southeast through the
afternoon. With a slight increase low level moisture, latest models
do indicate cape up to 400 j/kg across the higher terrain, along with
a ribbon of cape of 400-800 j/kg across the Pikes Peak region. This,
along with enough shear in place could support a few stronger storms
and the potential for low topped super cells with the help of "Palmer
Divide magic". Time will tell, however, will need to watch for
the potential for some bigger hail with said stronger storms,
though the main threats from most storms being gusty outflow winds.

With the front moving across the plains through the morning,
latest models continue to indicating breezy westerly developing
across the southern I-25 Corridor through the late afternoon,
leading to spotty critical fire weather conditions across western
portions of Huerfano county late this afternoon. Currently, these
conditions are too spotty to issue any fire weather highlights.

Showers diminish through the overnight hours with partial clearing
leading to lows in the 30s across the plains, and mainly in teens
and 20s across the higher terrain.

&&

.LONG TERM /TUESDAY THROUGH SUNDAY/...
Issued at 140 AM MDT Mon Apr 27 2026

A similar setup is expected across the region on Tuesday, as the
main West Coast trough translates across the Northern Rockies.
The more westerly flow aloft across the region on Tuesday will bring
the potential for more Critical Fire Conditions to the interior
valleys and into the gap flow areas of the I-25 Corridor. However,
with latest models indicating mixing generally up to 550-600 MB, we
are not realizing the strongest winds to the surface, leading to only
marginal critical fire weather conditions. With that said, we did not
issue any fire weather highlights for Tuesday at this time. Otherwise,
there is enough available moisture to support isolated to scattered
afternoon showers and storms, once again favoring northern portions
of the region.

For Wednesday through Friday, models continue to indicate run to run
differences on timing and phasing of northern and southern stream energy
across the Rockies, with the latest EC a tad faster with the northern
stream sending a front and moisture across the region as early as
Wednesday evening. The EC is also slower and further south with the
southern stream system moving across the southern Rockies Thursday
night and Friday. The latest GFS and Canadian runs keep the enough
moisture across the region to support isolated to scattered showers
and storms Wednesday afternoon and evening, with a northern stream
trough digging across the Rockies Thursday and Friday, as the southern
stream system translates tad further north across central New Mexico.
Each systems ensemble data is consistent with keeping the best moisture
across the southern Rockies where PWATS are progged to be over 200 percent
of normal, with PWATS of 100 to 160 percent of normal across the Central
Rockies. With that said, we are still expecting widespread precipitation
developing across the region stating in the late Wednesday night or Thursday
timeframe, and lasting through Friday night, with the best coverage over
and near the higher terrain, with weak easterly low level upslope combined
with ample moisture within the west to southwest flow aloft.  Models do
indicate the potential for snow levels down to between 7K-8K feet, with
light to moderate snow accumulations and possible winter weather highlights
needed, especially across the Southeast Mtns. While timing of the system
remains in question, high temperatures look to be well below seasonal levels,
especially Thursday and Friday.

A warming and drying trend does remain in the offing through next weekend,
as upper level ridging builds back across the Rockies.

&&

.AVIATION /18Z TAFS THROUGH 18Z TUESDAY/...
Issued at 1138 AM MDT Mon Apr 27 2026

At KCOS, cold front has moved through the terminal, bringing a
a vcsh after 20z and prob30 for -tsra 21z-24z as air mass
moistens behind the boundary. Winds will continue to be easterly
through the afternoon and into the evening, with a few gusts
over 20 mph possible. Winds turn more sely overnight, with a
period of IFR stratus likely 05z-16z, then slowly improving cigs
after 16z Tue.

At KPUB, nw winds will switch to e-se this afternoon with the
passage of a cold front. Will include a vcsh for a few hrs
23z-02z, though best chance will likely be just north of the
terminal. Persistent e-se wind overnight will bring in MVFR
stratus after 17z, with lower clouds lingering until 18z Tue.

At KALS, VFR with gusty w-sw winds this afternoon, diminishing
this evening. Gusty w-sw winds return 17z-18z Tue.

&&

.PUB WATCHES/WARNINGS/ADVISORIES...
None.

&&

SHORT TERM...MW
LONG TERM...MW
AVIATION...PETERSEN
Hazardous weather outlook, Apr 27, 12:01 PM MDT, 1 hour 15 minutes before
Hazardous Weather Outlook
National Weather Service Pueblo CO
1201 PM MDT Mon Apr 27 2026

COZ058>089-093>099-281815-
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-
1201 PM MDT Mon Apr 27 2026

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

.DAY ONE...This Afternoon and Tonight

Isolated to scattered showers and thunderstorms are expected this
afternoon and early evening across the higher terrain and into the
southeast plains. One or two stronger storms will be possible across
the plains, mainly along the Palmer Divide, where hail up to the
size of pennies and gusty outflow winds to near 60 mph could
occur. Otherwise, the main storm threats will be cloud to ground
lightning and gusty winds up to 50 mph. Showers across the higher
terrain may produce an inch or two of snow accumulation, mainly
across the highest peaks.

Spotty critical fire weather conditions will be possible across
portions of Huerfano county later this afternoon. As always,
please be vigilant to avoid activities which could spark a fire.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

Isolated to scattered and thunderstorms will remain possible across
the area Tuesday and Wednesday, with best coverage expected north of
the Highway 50 Corridor. Light snow accumulations will again be
possible across the higher terrain.

More widespread, but more marginal, critical fire weather conditions
will be possible Tuesday and Wednesday, especially across the interior
valleys and gap prone areas of the I-25 Corridor. This is ahead of
a stronger weather system tracking across the Rockies Thursday and Friday.
This system looks to bring much needed precipitation to the region in the
form of rain and higher elevation snow, along with well below seasonal
temperatures.

.SPOTTER INFORMATION STATEMENT...

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

10/23

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 27, 2:43 PM MDTSpecial Weather StatementPUBEl Paso32 min
Apr 27, 3:11 PM MDTSpecial Weather StatementPUBEl Paso34 min
Apr 27, 5:20 PM MDTSpecial Weather StatementPUBEl Paso25 min
Apr 27, 5:47 PM MDTSpecial Weather StatementPUBEl Paso28 min

Nearby

Red Flag Warnings in Colorado, 2026Every red flag 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.