Alert archive / Colorado / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 273, NWS Pueblo, CO

August 12, 2021El Paso County, Colorado

NWS Pueblo, CO issued this severe thunderstorm warning at Aug 12, 2021, 7:56 PM MDT for El Paso County, Colorado. It was in force for 34 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
Aug 12, 2021, 7:56 PM MDT (01:56 UTC)
Expired
Aug 12, 2021, 8:30 PM MDT
In force
34 min
Issued by
NWS Pueblo, CO
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County El Paso County, CO

The radar

The Pueblo radar (KPUX), 71 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 143 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 2021-08-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 616 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 2021-08-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 1 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
616 J/kg
Mixed-layer CIN
-65 J/kg
Mixed-layer LCL
2322 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
1 m²/s²
0-3 km storm-relative helicity
98 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

436 
WUUS55 KPUB 130156
SVRPUB
COC041-130230-
/O.NEW.KPUB.SV.W.0273.210813T0156Z-210813T0230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Pueblo CO
756 PM MDT Thu Aug 12 2021

The National Weather Service in Pueblo has issued a

* Severe Thunderstorm Warning for...
  North central El Paso County in east central Colorado...

* Until 830 PM MDT.

* At 756 PM MDT, a severe thunderstorm was located near Peyton, or 21
  miles northeast of Colorado Springs, moving southwest at 10 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...
  Peyton.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3901 10441 3893 10457 3913 10469 3913 10446
TIME...MOT...LOC 0156Z 066DEG 8KT 3906 10454 

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

$$

Rodriguez
2 follow-up statements
034 
WWUS55 KPUB 130210
SVSPUB

Severe Weather Statement
National Weather Service Pueblo CO
810 PM MDT Thu Aug 12 2021

COC041-130230-
/O.CON.KPUB.SV.W.0273.000000T0000Z-210813T0230Z/
El Paso CO-
810 PM MDT Thu Aug 12 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 830 PM MDT
FOR NORTH CENTRAL EL PASO COUNTY...

At 810 PM MDT, a severe thunderstorm was located near Peyton, or 21
miles northeast of Colorado Springs, moving west at 5 mph.

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

SOURCE...Trained weather spotters.

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

Locations impacted include...
Peyton.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3901 10441 3893 10457 3913 10469 3913 10446
TIME...MOT...LOC 0210Z 068DEG 6KT 3906 10455 

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

$$

Rodriguez
378 
WWUS55 KPUB 130225
SVSPUB

Severe Weather Statement
National Weather Service Pueblo CO
825 PM MDT Thu Aug 12 2021

COC041-130234-
/O.EXP.KPUB.SV.W.0273.000000T0000Z-210813T0230Z/
El Paso CO-
825 PM MDT Thu Aug 12 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL EL PASO COUNTY
WILL EXPIRE AT 830 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 and heavy rain with localized flooding are still possible with 
this thunderstorm.

LAT...LON 3901 10441 3893 10457 3913 10469 3913 10446
TIME...MOT...LOC 0224Z 066DEG 8KT 3905 10458 

$$

Rodriguez

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 12, 6:38 PM MDTSpecial Weather StatementPUBElbert37 min
Aug 12, 7:48 PM MDTSpecial Weather StatementPUBEl Paso27 min
Aug 12, 8:05 PM MDTSpecial Weather StatementPUB25 min
Aug 13, 3:49 PM MDTSpecial Weather StatementPUBSaguache26 min
Aug 13, 4:37 PM MDTSpecial Weather StatementPUBSaguache23 min
Aug 13, 5:00 PM MDTSpecial Weather StatementPUBSaguache30 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.