Alert archive / Colorado / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 277, NWS Pueblo, CO

September 12, 2021Kiowa County, Prowers County, Colorado

NWS Pueblo, CO issued this severe thunderstorm warning at Sep 12, 2021, 6:29 PM MDT for Kiowa County, Prowers County, Colorado. It was in force for 46 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, 6:29 PM MDT (00:29 UTC)
Expired
Sep 12, 2021, 7:15 PM MDT
In force
46 min
Issued by
NWS Pueblo, CO
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Kiowa County, CO, Prowers County, CO

The radar

The Goodland radar (KGLD), 124 km from the middle of the area, began a volume at 00:29 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, 0.5 hours before the alert went out and 165 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-pSkew-T log-p diagram, Denver, CO at 00:00Z on 2021-09-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Denver, CO at 00:00Z on 2021-09-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -12 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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.

215 
WUUS55 KPUB 130029
SVRPUB
COC061-099-130115-
/O.NEW.KPUB.SV.W.0277.210913T0029Z-210913T0115Z/

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

The National Weather Service in Pueblo has issued a

* Severe Thunderstorm Warning for...
  North central Prowers County in southeastern Colorado...
  Central Kiowa County in southeastern Colorado...

* Until 715 PM MDT.

* At 628 PM MDT, a severe thunderstorm was located near Eads, or 32
  miles southwest of Cheyenne Wells, moving east at 40 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 be near...
  Eads around 635 PM MDT.

Other locations in the path of this severe thunderstorm include
Chivington and Brandon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3818 10238 3826 10256 3844 10305 3861 10295
      3861 10258 3862 10255 3861 10246 3862 10245
      3861 10229
TIME...MOT...LOC 0028Z 289DEG 35KT 3856 10285 

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

$$

KTS
2 follow-up statements
556 
WWUS55 KPUB 130051
SVSPUB

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

COC099-130100-
/O.CAN.KPUB.SV.W.0277.000000T0000Z-210913T0115Z/
Prowers CO-
651 PM MDT Sun Sep 12 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL PROWERS COUNTY
IS CANCELLED...
    
The severe thunderstorm which prompted the warning is not expected 
to impact this region, therefore, the warning has been cancelled.

LAT...LON 3827 10236 3827 10245 3845 10272 3857 10282
      3861 10282 3861 10258 3862 10256 3861 10246
      3862 10245 3861 10229
TIME...MOT...LOC 0050Z 290DEG 29KT 3850 10267 

$$

COC061-130115-
/O.CON.KPUB.SV.W.0277.000000T0000Z-210913T0115Z/
Kiowa CO-
651 PM MDT Sun Sep 12 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM MDT
FOR EASTERN KIOWA COUNTY...

At 650 PM MDT, a severe thunderstorm was located near Eads, or 28
miles southwest of Cheyenne Wells, moving east at 35 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...
  Chivington and Brandon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3827 10236 3827 10245 3845 10272 3857 10282
      3861 10282 3861 10258 3862 10256 3861 10246
      3862 10245 3861 10229
TIME...MOT...LOC 0050Z 290DEG 29KT 3850 10267 

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

$$

KTS
706 
WWUS55 KPUB 130111
SVSPUB

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

COC061-130121-
/O.EXP.KPUB.SV.W.0277.000000T0000Z-210913T0115Z/
Kiowa CO-
711 PM MDT Sun Sep 12 2021

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN KIOWA COUNTY WILL
EXPIRE AT 715 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 gusty
winds are still possible with this thunderstorm.

LAT...LON 3827 10236 3827 10245 3845 10272 3857 10282
      3861 10282 3861 10258 3862 10256 3861 10246
      3862 10245 3861 10229
TIME...MOT...LOC 0111Z 289DEG 35KT 3844 10245 

$$

KTS

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 12, 6:03 PM MDTSpecial Weather StatementPUBKiowa42 min
Sep 12, 6:33 PM MDTSpecial Weather StatementPUBBent42 min
Sep 12, 7:09 PM MDTSpecial Weather StatementPUBKiowa66 min
Sep 12, 7:22 PM MDTSpecial Weather StatementPUBBent38 min
Sep 12, 7:27 PM MDTSevere Thunderstorm WarningPUBBent33 min
Sep 12, 7:55 PM MDTSevere Thunderstorm WarningPUBBent50 min
Sep 12, 8:27 PM MDTSpecial Weather StatementPUBProwers63 min
Sep 12, 8:34 PM MDTSpecial Weather StatementPUBKiowa56 min
Sep 12, 8:47 PM MDTSevere Thunderstorm WarningPUBProwers28 min
Sep 12, 9:16 PM MDTSpecial Weather StatementPUBKiowa59 min

Nearby

Severe Thunderstorm Warnings in Colorado, 2021Every 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.