Alert archive / Colorado / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 279, NWS Pueblo, CO

September 12, 2021Bent County, Colorado

NWS Pueblo, CO issued this severe thunderstorm warning at Sep 12, 2021, 7:55 PM MDT for Bent County, Colorado. It was in force for 50 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, 7:55 PM MDT (01:55 UTC)
Expired: Sep 12, 2021, 8:45 PM MDT
In force: 50 min
Issued by: NWS Pueblo, CO
Area: Storm-based polygon
Hail: 1.5 in
Wind: 60.0 mph

County Bent County, CO

The radar

The Pueblo radar (KPUX), 118 km from the middle of the area, began a volume at 01:56 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, 1.9 hours before the alert went out and 208 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.

250 
WUUS55 KPUB 130155
SVRPUB
COC011-130245-
/O.NEW.KPUB.SV.W.0279.210913T0155Z-210913T0245Z/

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

The National Weather Service in Pueblo has issued a

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

* Until 845 PM MDT.

* At 755 PM MDT, a severe thunderstorm was located 7 miles south of
  John Martin Reservoir, or 24 miles west of Lamar, moving northeast
  at 20 mph.

  HAZARD...Ping pong ball size hail and 60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...People and animals outdoors will be injured. Expect hail 
           damage to roofs, siding, windows, and vehicles. Expect 
           wind damage to roofs, siding, and trees.

* Locations impacted include...
  Hasty and McClave.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3786 10300 3795 10317 3825 10310 3814 10274
      3802 10274
TIME...MOT...LOC 0155Z 213DEG 17KT 3798 10304 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.50 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

KTS

3 follow-up statements

478 
WWUS55 KPUB 130215
SVSPUB

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

COC011-130245-
/O.CON.KPUB.SV.W.0279.000000T0000Z-210913T0245Z/
Bent CO-
815 PM MDT Sun Sep 12 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 PM MDT
FOR NORTHEASTERN BENT COUNTY...

At 815 PM MDT, a severe thunderstorm was located near John Martin
Reservoir, or 20 miles west of Lamar, 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...
Hasty, McClave, John Martin Reservoir and Caddoa. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3797 10306 3823 10304 3814 10274 3802 10274
      3795 10285
TIME...MOT...LOC 0215Z 213DEG 14KT 3804 10299 

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

$$

KTS

457 
WWUS55 KPUB 130231
SVSPUB

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

COC011-130245-
/O.CON.KPUB.SV.W.0279.000000T0000Z-210913T0245Z/
Bent CO-
831 PM MDT Sun Sep 12 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 PM MDT
FOR NORTHEASTERN BENT COUNTY...

At 831 PM MDT, a severe thunderstorm was located over Hasty, or 17
miles west of Lamar, moving northeast at 20 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...
Hasty, McClave, John Martin Reservoir and Caddoa. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3804 10274 3802 10283 3804 10298 3815 10299
      3820 10295 3814 10274
TIME...MOT...LOC 0231Z 213DEG 17KT 3810 10294 

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

$$

KTS

980 
WWUS55 KPUB 130235
SVSPUB

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

COC011-130245-
/O.EXP.KPUB.SV.W.0279.000000T0000Z-210913T0245Z/
Bent CO-
835 PM MDT Sun Sep 12 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN BENT COUNTY WILL
EXPIRE AT 845 PM MDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire.  However small hail
and gusty winds are still possible with this thunderstorm.

LAT...LON 3804 10274 3802 10283 3804 10298 3815 10299
      3820 10295 3814 10274
TIME...MOT...LOC 0235Z 213DEG 17KT 3811 10293 

$$

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, 7:27 PM MDT	Severe Thunderstorm Warning	PUB	Bent	33 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.