Alert archive / Colorado / Severe Thunderstorm Warnings in 2024

Severe Thunderstorm Warning 312, NWS Pueblo, CO

October 20, 2024Las Animas County, Colorado

NWS Pueblo, CO issued this severe thunderstorm warning at Oct 20, 2024, 4:57 PM MDT for Las Animas County, Colorado. It was in force for 48 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: Oct 20, 2024, 4:57 PM MDT (22:57 UTC)
Expired: Oct 20, 2024, 5:45 PM MDT
In force: 48 min
Issued by: NWS Pueblo, CO
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Las Animas County, CO

The radar

The Pueblo radar (KPUX), 128 km from the middle of the area, began a volume at 22:58 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 nearest sounding before it

Amarillo Airport, TX (KAMA), launched 12:00Z, 11.0 hours before the alert went out and 313 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1139 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 178 m²/s²
0-3 km storm-relative helicity: 186 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

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 Oct 20, 2:46 PM MDT, 2 hours 11 minutes earlier.

Area forecast discussion, Oct 20, 2:46 PM MDT, 2 hours 11 minutes before

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Hazardous weather outlook, Oct 20, 11:03 AM MDT, 5 hours 54 minutes before

Hazardous Weather Outlook
National Weather Service Pueblo CO
1103 AM MDT Sun Oct 20 2024

COZ058>089-093>099-211715-
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-
1103 AM MDT Sun Oct 20 2024

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

.DAY ONE...This afternoon and Tonight

Thunderstorms, some strong, are likely from late afternoon into
the evening hours across all of the plains. The storms will have
the potential to produce wind gusts to 40 to 50 mph and small
hail. One or two of the storms may become marginally severe, and
produce wind gusts to 60 mph and hail up to one inch. The
strongest storms over the plains are expected to develop south of
highway 50.

The thunderstorm activity over the plains this afternoon will be
isolated, but will become more widespread this evening as a broken
line of storms push across the plains.

This thunderstorm activity will be associated with an upper level
low which will push across the region during the evening hours.

Over the mountains, snow showers, some intense, will continue
this afternoon into tonight, The heaviest snow will fall along
the Continental Divide late this afternoon and overnight, where
several inches of accumulation are likely by early Monday morning.
Over the remaining mountains, accumulations will be lighter, with
2 to 4 inches possible. Isolated thunderstorm will also be
possible this afternoon and overnight, bringing a risk of cloud to
ground lightning, gusty winds to 45 mph and a brief period of
very heavy snow down to much lower elevations. Graupel and small
hail will be possible with the stronger storms.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

Light snow showers are expected Monday morning along the central and
Rampart Mountains, with totals less than 2 inches. Additionally,
rain showers are expected over the eastern plains, with embedded
weak thunderstorms, Monday morning as well. Any precipitation
present Monday morning is anticipated to dissipate during the early
to mid afternoon hours.

.SPOTTER INFORMATION STATEMENT...

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

Hodanish

In the hours before

Special weather statement, Oct 20, 12:22 PM MDT, 4 hours 35 minutes before

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Special weather statement, Oct 20, 2:40 PM MDT, 2 hours 17 minutes before

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Special weather statement, Oct 20, 3:27 PM MDT, 1 hour 30 minutes before

Special Weather Statement
National Weather Service Pueblo CO
327 PM MDT Sun Oct 20 2024

COZ060>062-064>066-069-072-202200-
La Garita Mountains Above 10000 Ft CO-
Central Chaffee County Below 9000 Ft CO-
Saguache County East of Continental Divide below 10000 Ft CO-
Del Norte Vicinity/Northern San Luis Valley Below 8500 Ft CO-
Western Chaffee County Between 9000 and 11000 Ft CO-
Northern Sangre de Cristo Mountains Between 8500 And 11000 Ft CO-
Saguache County West of Continental Divide Below 10000 Ft CO-
Eastern Sawatch Mountains above 11000 Ft CO-
327 PM MDT Sun Oct 20 2024

...A STRONG THUNDERSTORM WILL IMPACT SOUTH CENTRAL CHAFFEE AND
CENTRAL SAGUACHE COUNTIES THROUGH 400 PM MDT...

At 327 PM MDT, Doppler radar was tracking a strong thunderstorm 12
miles southwest of Saguache, or 45 miles northwest of Alamosa, moving
north at 50 mph.

HAZARD...Wind gusts up to 50 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...
Bonanza, Sargents, and Poncha Pass.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3842 10643 3842 10625 3844 10625 3844 10627
      3846 10629 3847 10629 3849 10631 3846 10608
      3792 10625 3795 10647
TIME...MOT...LOC 2127Z 189DEG 45KT 3802 10635

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...50 MPH

Hodanish

Special weather statement, Oct 20, 3:39 PM MDT, 1 hour 18 minutes before

Special Weather Statement
National Weather Service Pueblo CO
339 PM MDT Sun Oct 20 2024

COZ067>069-202200-
Del Norte Vicinity/Northern San Luis Valley Below 8500 Ft CO-
Upper Rio Grande Valley/Eastern San Juan Mountains Below 10000 Ft CO-
Eastern San Juan Mountains Above 10000 Ft CO-
339 PM MDT Sun Oct 20 2024

...A THUNDER SNOW STORM WILL IMPACT THE HIGHWAY 160 CORRIDOR
OVER WOLF CREEK PASS THROUGH 400 PM MDT...

At 336 PM MDT, Doppler radar was tracking a thunderstorm activity in
the San Juan Mountains along and near Wolf Creek Pass. This activity
was moving northeast at 45 mph.

HAZARD...Wind gusts up to 50 mph and periods of heavy snow and small
         hail.

SOURCE...Radar indicated.

IMPACT...Quick accumulations of slushy snow and hail will be
         possible along Highway 160 on both sides of Wolf Creek
         Pass.

Locations impacted include...
South Fork and Wolf Creek Pass.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3776 10689 3766 10639 3737 10668 3741 10668
      3740 10671 3739 10701
TIME...MOT...LOC 2136Z 199DEG 39KT 3730 10691

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...50 MPH

Hodanish

Special weather statement, Oct 20, 4:52 PM MDT, 5 minutes before

Special Weather Statement
National Weather Service Pueblo CO
452 PM MDT Sun Oct 20 2024

COZ067-068-070-071-202345-
Southern San Luis Valley CO-
Alamosa  Vicinity/Central San Luis Valley Below 8500 Ft CO-
Upper Rio Grande Valley/Eastern San Juan Mountains Below 10000 Ft CO-
Eastern San Juan Mountains Above 10000 Ft CO-
452 PM MDT Sun Oct 20 2024

...A STRONG THUNDERSTORM WILL IMPACT SOUTHWESTERN ALAMOSA...
SOUTHEASTERN RIO GRANDE AND CENTRAL CONEJOS COUNTIES THROUGH 545 PM
MDT...

At 452 PM MDT, Doppler radar was tracking a strong thunderstorm near
Chama, moving northeast at 40 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...
Capulin and Cumbres Pass.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3699 10647 3704 10651 3753 10621 3739 10591
      3699 10624
TIME...MOT...LOC 2252Z 210DEG 35KT 3687 10650

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

Hodanish

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 20, 12:22 PM MDT	Special Weather Statement	PUB	Mineral	38 min
Oct 20, 2:40 PM MDT	Special Weather Statement	PUB	Pueblo	35 min
Oct 20, 3:27 PM MDT	Special Weather Statement	PUB	Saguache	33 min
Oct 20, 3:39 PM MDT	Special Weather Statement	PUB	Rio Grande	21 min
Oct 20, 4:52 PM MDT	Special Weather Statement	PUB	Conejos	53 min
Oct 20, 5:42 PM MDT	Special Weather Statement	PUB	Saguache	48 min
Oct 20, 5:44 PM MDT	Special Weather Statement	PUB	Alamosa, Conejos	31 min
Oct 20, 5:56 PM MDT	Special Weather Statement	PUB	Las Animas	34 min

Nearby

Severe Thunderstorm Warnings in Colorado, 2024 Every severe thunderstorm warning in 2024

Sources

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