Alert archive / Texas / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 113, NWS Lubbock, TX

April 30, 2012Kent County, Stonewall County, Texas

NWS Lubbock, TX issued this severe thunderstorm warning at Apr 30, 2012, 7:00 PM CDT for Kent County, Stonewall County, Texas. It was in force for 60 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
Apr 30, 2012, 7:00 PM CDT (00:00 UTC)
Expired
Apr 30, 2012, 8:00 PM CDT
In force
60 min
Issued by
NWS Lubbock, TX
Area
Storm-based polygon

Counties Kent County, TX, Stonewall County, TX

The radar

The Lubbock radar (KLBB), 129 km from the middle of the area, began a volume at 00:00 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Apr 30, 3:36 PM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Midland Regional, TX (KMAF), launched 00:00Z, 0.0 hours before the alert went out and 189 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, Midland Regional, TX at 00:00Z on 2012-05-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1782 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, Midland Regional, TX at 00:00Z on 2012-05-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 65 square meters per square second.193958Sfc1 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
1782 J/kg
Mixed-layer CIN
-44 J/kg
Mixed-layer LCL
1883 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
65 m²/s²
0-3 km storm-relative helicity
203 m²/s²
Significant tornado parameter
0.1
Supercell composite
5.2

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

745 
WUUS54 KLUB 010000
SVRLUB
TXC263-433-010100-
/O.NEW.KLUB.SV.W.0113.120501T0000Z-120501T0100Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LUBBOCK TX
700 PM CDT MON APR 30 2012

THE NATIONAL WEATHER SERVICE IN LUBBOCK HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN KENT COUNTY IN NORTHWEST TEXAS.
  SOUTHWESTERN STONEWALL COUNTY IN NORTHWEST TEXAS.

* UNTIL 800 PM CDT

* AT 656 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING GOLF BALL SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 6 MILES
  SOUTH OF CLAIREMONT...OR 16 MILES SOUTHWEST OF JAYTON...AND MOVING
  EAST AT 20 MPH.

* THE SEVERE THUNDERSTORM WILL OTHERWISE IMPACT MAINLY RURAL AREAS OF
  THE INDICATED COUNTIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

LARGE HAIL...DAMAGING WINDS...AND VERY HEAVY RAINS ARE EXPECTED WITH
THIS STORM. TAKE COVER IN A SUBSTANTIAL SHELTER.

TO REPORT SEVERE WEATHER...PLEASE CALL THE NATIONAL WEATHER SERVICE
AT 8067451290.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT
MONDAY EVENING FOR THE PANHANDLE AND NORTHWEST TEXAS.

&&

LAT...LON 3296 10071 3300 10086 3318 10081 3314 10034
      3296 10042
TIME...MOT...LOC 0000Z 283DEG 15KT 3307 10074

$$
JORDAN
1 follow-up statement
794 
WWUS54 KLUB 010018
SVSLUB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LUBBOCK TX
718 PM CDT MON APR 30 2012

TXC263-433-010100-
/O.CON.KLUB.SV.W.0113.000000T0000Z-120501T0100Z/
KENT TX-STONEWALL TX-
718 PM CDT MON APR 30 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHWESTERN
STONEWALL AND SOUTHEASTERN KENT COUNTIES UNTIL 800 PM CDT...

AT 712 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING GOLF BALL SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 6 MILES
SOUTHEAST OF CLAIREMONT...OR 13 MILES SOUTHWEST OF JAYTON...MOVING 
EAST AT 15 MPH.  A TRAINED STORM SPOTTER ALSO REPORTED A FUNNEL 
CLOUD WITH THIS STORM AT 702 PM CDT HOWEVER THE ROTATION WITH THIS 
STORM HAS WEAKENED ON DOPPLER RADAR.

LOCATIONS IMPACTED INCLUDE...
  MAINLY RURAL AREAS OF EASTERN KENT AND EXTREME WESTERN STONEWALL
  COUNTIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM HAS EXHIBITED SOME WEAK ROTATION. TORNADOES CAN DEVELOP
QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH ONE IS NOT IMMEDIATELY
LIKELY...IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF
SAFETY INSIDE A STURDY STRUCTURE... SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.

TO REPORT SEVERE WEATHER...PLEASE CALL THE NATIONAL WEATHER SERVICE
IN LUBBOCK AT 8067451290.

&&

LAT...LON 3300 10072 3307 10077 3317 10071 3314 10034
      3296 10042
TIME...MOT...LOC 0016Z 267DEG 12KT 3309 10068

$$
JORDAN

The office that day

Everything else NWS Lubbock, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 30, 7:14 PM CDTSevere Thunderstorm WarningLUBGarza46 min
Apr 30, 7:20 PM CDTSevere Thunderstorm WarningLUBCottle, Dickens, King, Motley40 min
Apr 30, 7:51 PM CDTSevere Thunderstorm WarningLUBDickens27 min
Apr 30, 7:58 PM CDTSevere Thunderstorm WarningLUBGarza47 min
Apr 30, 7:59 PM CDTSevere Thunderstorm WarningLUBCottle18 min
Apr 30, 8:29 PM CDTAreal Flood AdvisoryLUBGarza91 min
Apr 30, 8:44 PM CDTSevere Thunderstorm WarningLUBGarza, Kent46 min
Apr 30, 8:50 PM CDTSpecial Weather StatementLUBStonewall25 min
Apr 30, 8:55 PM CDTSpecial Weather StatementLUBHall35 min
Apr 30, 9:04 PM CDTSevere Thunderstorm WarningLUBChildress11 min
Apr 30, 9:23 PM CDTSevere Thunderstorm WarningLUBChildress, Hall37 min
Apr 30, 9:27 PM CDTSpecial Weather StatementLUBStonewall33 min
Apr 30, 9:56 PM CDTSevere Thunderstorm WarningLUBChildress34 min
Apr 30, 9:58 PM CDTSpecial Weather StatementLUBStonewall32 min

Nearby

Severe Thunderstorm Warnings in Texas, 2012Every severe thunderstorm warning in 2012

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.