Alert archive / Colorado / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 277, NWS Pueblo, CO

August 20, 2026El Paso County, Colorado

NWS Pueblo, CO issued this severe thunderstorm warning at Aug 20, 2026, 6:12 PM MDT for El Paso County, Colorado. It was in force for 33 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Aug 20, 2026, 6:12 PM MDT (00:12 UTC)
Expired
Aug 20, 2026, 6:45 PM MDT
In force
33 min
Issued by
NWS Pueblo, CO
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County El Paso County, CO

What forecasters said that day

The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at Aug 20, 5:56 PM MDT, 16 minutes earlier.

Area forecast discussion, Aug 20, 5:56 PM MDT, 16 minutes before
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Hazardous weather outlook, Aug 20, 11:40 AM MDT, 6 hours 32 minutes before
Hazardous Weather Outlook
National Weather Service Pueblo CO
1140 AM MDT Thu Aug 20 2026

COZ058>089-093>099-211745-
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-
1140 AM MDT Thu Aug 20 2026

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

.DAY ONE...This Afternoon and Tonight

Scattered thunderstorms are forecast mainly across the mountains
this afternoon and early evening. Thunderstorms will move
southeast off the higher terrain and into the Intrastate 25
corridor this evening, mainly south of Highway 50. Lightning,
outflow wind gusts near 45 mph and locally heavy rainfall may
accompany thunderstorms. If a storm happens to move over the Aspen
Acres burn scar, flash flooding could occur.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

Showers and thunderstorms are expected to be scattered over the
mountains and isolated over the plains during this period. The
best chance for heavier rain, and increased flash flooding, will
be on Saturday.

.SPOTTER INFORMATION STATEMENT...

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

88/34

In the hours before

Special weather statement, Aug 20, 2:20 PM MDT, 3 hours 52 minutes before
Special Weather Statement
National Weather Service Pueblo CO
220 PM MDT Thu Aug 20 2026

COZ081>083-085-086-202045-
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-Pikes Peak above 11000 Ft CO-
Teller County/Rampart Range above 7500fT/Pike's Peak Between 7500 And
11000 Ft CO-
220 PM MDT Thu Aug 20 2026

...A STRONG THUNDERSTORM WILL IMPACT NORTHEASTERN FREMONT...
SOUTHEASTERN TELLER...SOUTHWESTERN EL PASO AND NORTHERN PUEBLO
COUNTIES THROUGH 245 PM MDT...

At 220 PM MDT, Doppler radar was tracking a strong thunderstorm near
Victor, or 13 miles southwest of Colorado Springs, moving south at 25
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.

Locations impacted include...
Penrose.

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 3878 10510 3880 10494 3848 10479 3846 10512
TIME...MOT...LOC 2020Z 349DEG 20KT 3872 10502

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

kam
Special weather statement, Aug 20, 2:43 PM MDT, 3 hours 29 minutes before
Special Weather Statement
National Weather Service Pueblo CO
243 PM MDT Thu Aug 20 2026

COZ083-085-086-202115-
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-
243 PM MDT Thu Aug 20 2026

...A STRONG THUNDERSTORM WILL IMPACT EAST CENTRAL FREMONT...
SOUTHWESTERN EL PASO AND NORTHWESTERN PUEBLO COUNTIES THROUGH 315 PM
MDT...

At 243 PM MDT, Doppler radar was tracking a strong thunderstorm near
Penrose, or 21 miles northwest of Pueblo, moving east 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.

Locations impacted include...
Penrose and Pueblo West.

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 3839 10500 3854 10497 3859 10471 3835 10475
TIME...MOT...LOC 2043Z 269DEG 13KT 3848 10491

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

kam
Special weather statement, Aug 20, 3:36 PM MDT, 2 hours 36 minutes before
Special Weather Statement
National Weather Service Pueblo CO
336 PM MDT Thu Aug 20 2026

COZ065-066-069-202200-
La Garita Mountains Above 10000 Ft CO-
Saguache County East of Continental Divide below 10000 Ft CO-
Del Norte Vicinity/Northern San Luis Valley Below 8500 Ft CO-
336 PM MDT Thu Aug 20 2026

...A STRONG THUNDERSTORM WILL IMPACT SOUTH CENTRAL SAGUACHE COUNTY
THROUGH 400 PM MDT...

At 336 PM MDT, Doppler radar was tracking a strong thunderstorm near
La Garita, or 38 miles northwest of Alamosa, moving southeast 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.

Locations impacted include...
La Garita.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3790 10642 3802 10630 3793 10607 3775 10622
TIME...MOT...LOC 2136Z 304DEG 14KT 3791 10629

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

MG
Special weather statement, Aug 20, 4:06 PM MDT, 2 hours 6 minutes before
Special Weather Statement
National Weather Service Pueblo CO
406 PM MDT Thu Aug 20 2026

COZ079-083-202230-
Wet Mountains between 6300 and 10000Ft CO-
Canon City Vicinity/Eastern Fremont County CO-
406 PM MDT Thu Aug 20 2026

...A STRONG THUNDERSTORM WILL IMPACT SOUTHEASTERN FREMONT COUNTY
THROUGH 430 PM MDT...

At 406 PM MDT, Doppler radar was tracking a strong thunderstorm near
Canon City, or 32 miles west of Pueblo, moving south at 15 mph.

HAZARD...Wind gusts up to 50 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...
Florence, Canon City, and Penrose.

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 3848 10524 3849 10508 3834 10502 3831 10523
TIME...MOT...LOC 2206Z 354DEG 12KT 3842 10517

MAX HAIL SIZE...0.88 IN
MAX WIND GUST...50 MPH

MG
Special weather statement, Aug 20, 4:09 PM MDT, 2 hours 3 minutes before
Special Weather Statement
National Weather Service Pueblo CO
409 PM MDT Thu Aug 20 2026

COZ081>083-202245-
Canon City Vicinity/Eastern Fremont County CO-
Pikes Peak above 11000 Ft CO-
Teller County/Rampart Range above 7500fT/Pike's Peak Between 7500 And
11000 Ft CO-
409 PM MDT Thu Aug 20 2026

...A STRONG THUNDERSTORM WILL IMPACT NORTHEASTERN FREMONT AND
SOUTHEASTERN TELLER COUNTIES THROUGH 445 PM MDT...

At 409 PM MDT, Doppler radar was tracking a strong thunderstorm over
Victor, or 17 miles southwest of Colorado Springs, moving south at 15
mph.

HAZARD...Wind gusts up to 40 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.

Locations impacted include...
Cripple Creek and Victor.

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 3878 10521 3878 10499 3859 10495 3854 10518
TIME...MOT...LOC 2209Z 354DEG 12KT 3870 10510

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH

MG
Special weather statement, Aug 20, 5:31 PM MDT, 41 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Aug 20, 6:38 PM MDTSpecial Weather StatementPUBEl Paso37 min
Aug 21, 3:58 PM MDTSpecial Weather StatementPUBEl Paso32 min

Nearby

Severe Thunderstorm Warnings in Colorado, 2026Every severe thunderstorm 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.