Alert archive / Colorado / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 278, NWS Pueblo, CO

September 12, 2021Bent County, Colorado

NWS Pueblo, CO issued this severe thunderstorm warning at Sep 12, 2021, 7:27 PM MDT for Bent 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 outline as issued.

The facts

Issued: Sep 12, 2021, 7:27 PM MDT (01:27 UTC)
Expired: Sep 12, 2021, 8:00 PM MDT
In force: 33 min
Issued by: NWS Pueblo, CO
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Bent County, CO

The radar

The Pueblo radar (KPUX), 115 km from the middle of the area, began a volume at 01:27 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

Denver, CO (KDNR), launched 00:00Z, 1.5 hours before the alert went out and 223 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: 1 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2604 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: -12 m²/s²
0-3 km storm-relative helicity: 74 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

806 
WUUS55 KPUB 130127
SVRPUB
COC011-130200-
/O.NEW.KPUB.SV.W.0278.210913T0127Z-210913T0200Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Pueblo CO
727 PM MDT Sun Sep 12 2021

The National Weather Service in Pueblo has issued a

* Severe Thunderstorm Warning for...
  Central Bent County in southeastern Colorado...

* Until 800 PM MDT.

* At 727 PM MDT, a severe thunderstorm was located 15 miles south of
  Las Animas, or 21 miles southeast of North La Junta, moving
  northeast at 15 mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* This severe thunderstorm will remain over mainly rural areas of
  central Bent County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3778 10321 3787 10327 3809 10302 3783 10281
TIME...MOT...LOC 0127Z 242DEG 15KT 3785 10318 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

KTS

1 follow-up statement

727 
WWUS55 KPUB 130147
SVSPUB

Severe Weather Statement
National Weather Service Pueblo CO
747 PM MDT Sun Sep 12 2021

COC011-130200-
/O.CON.KPUB.SV.W.0278.000000T0000Z-210913T0200Z/
Bent CO-
747 PM MDT Sun Sep 12 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 800 PM MDT
FOR CENTRAL BENT COUNTY...

At 747 PM MDT, a severe thunderstorm was located 13 miles south of
John Martin Reservoir, or 24 miles east of North La Junta, moving
northeast at 15 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
John Martin Reservoir.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3780 10312 3792 10321 3809 10302 3783 10281
TIME...MOT...LOC 0147Z 242DEG 15KT 3789 10309 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

KTS

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 12, 6:03 PM MDT	Special Weather Statement	PUB	Kiowa	42 min
Sep 12, 6:29 PM MDT	Severe Thunderstorm Warning	PUB	Kiowa, Prowers	46 min
Sep 12, 6:33 PM MDT	Special Weather Statement	PUB	Bent	42 min
Sep 12, 7:09 PM MDT	Special Weather Statement	PUB	Kiowa	66 min
Sep 12, 7:22 PM MDT	Special Weather Statement	PUB	Bent	38 min
Sep 12, 7:55 PM MDT	Severe Thunderstorm Warning	PUB	Bent	50 min
Sep 12, 8:27 PM MDT	Special Weather Statement	PUB	Prowers	63 min
Sep 12, 8:34 PM MDT	Special Weather Statement	PUB	Kiowa	56 min
Sep 12, 8:47 PM MDT	Severe Thunderstorm Warning	PUB	Prowers	28 min
Sep 12, 9:16 PM MDT	Special Weather Statement	PUB	Kiowa	59 min

Nearby

Severe Thunderstorm Warnings in Colorado, 2021 Every severe thunderstorm warning in 2021

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.