Alert archive / Texas / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 21, NWS Lubbock, TX

April 1, 2013Floyd County, Texas

NWS Lubbock, TX issued this severe thunderstorm warning at Apr 1, 2013, 4:28 PM CDT for Floyd County, Texas. It was in force for 32 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 1, 2013, 4:28 PM CDT (21:28 UTC)
Expired
Apr 1, 2013, 5:00 PM CDT
In force
32 min
Issued by
NWS Lubbock, TX
Area
Storm-based polygon

County Floyd County, TX

The radar

The Lubbock radar (KLBB), 66 km from the middle of the area, began a volume at 21:28 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 1, 3:36 PM CDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 12:00Z, 9.5 hours before the alert went out and 124 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, Amarillo Airport, TX at 12:00Z on 2013-04-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 53 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Amarillo Airport, TX at 12:00Z on 2013-04-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 297 square meters per square second.1939587897Sfc1 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
53 J/kg
Mixed-layer CIN
-411 J/kg
Mixed-layer LCL
1662 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
297 m²/s²
0-3 km storm-relative helicity
327 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

054 
WUUS54 KLUB 012128
SVRLUB
TXC153-012200-
/O.NEW.KLUB.SV.W.0021.130401T2128Z-130401T2200Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LUBBOCK TX
428 PM CDT MON APR 1 2013

THE NATIONAL WEATHER SERVICE IN LUBBOCK HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN FLOYD COUNTY IN NORTHWEST TEXAS.

* UNTIL 500 PM CDT

* AT 424 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL.  THIS
  STORM WAS LOCATED NEAR AIKEN...OR 10 MILES EAST OF PLAINVIEW...AND
  MOVING EAST AT 25 MPH.

* SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE AIKEN...LOCKNEY 
  AND SOUTH PLAINS.

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 900 PM CDT MONDAY
EVENING FOR THE PANHANDLE AND NORTHWEST TEXAS.

&&

LAT...LON 3410 10121 3405 10157 3407 10157 3422 10157
      3431 10134
TIME...MOT...LOC 2128Z 260DEG 24KT 3415 10152

$$
3 follow-up statements
900 
WWUS54 KLUB 012142
SVSLUB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LUBBOCK TX
442 PM CDT MON APR 1 2013

TXC153-012200-
/O.CON.KLUB.SV.W.0021.000000T0000Z-130401T2200Z/
FLOYD TX-
442 PM CDT MON APR 1 2013

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR CENTRAL FLOYD
COUNTY UNTIL 500 PM CDT...

AT 437 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
LOCKNEY...OR 14 MILES NORTHWEST OF FLOYDADA...MOVING EAST AT 30 MPH.

LOCATIONS IMPACTED INCLUDE...
LOCKNEY AND SOUTH PLAINS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3410 10121 3407 10141 3407 10145 3424 10151
      3431 10134
TIME...MOT...LOC 2140Z 260DEG 24KT 3416 10142

$$
549 
WWUS54 KLUB 012150
SVSLUB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LUBBOCK TX
450 PM CDT MON APR 1 2013

TXC153-012200-
/O.CON.KLUB.SV.W.0021.000000T0000Z-130401T2200Z/
FLOYD TX-
450 PM CDT MON APR 1 2013

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR CENTRAL FLOYD
COUNTY UNTIL 500 PM CDT...

AT 445 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR 
LOCKNEY...OR 13 MILES NORTH OF FLOYDADA...MOVING EAST AT 30 MPH. 
SPOTTERS HAVE REPORTED A PERSISTENT WALL CLOUD WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
LOCKNEY AND SOUTH PLAINS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3410 10121 3407 10139 3426 10146 3431 10134
TIME...MOT...LOC 2149Z 260DEG 24KT 3417 10135

$$
825 
WWUS54 KLUB 012159
SVSLUB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LUBBOCK TX
459 PM CDT MON APR 1 2013

TXC153-012209-
/O.EXP.KLUB.SV.W.0021.000000T0000Z-130401T2200Z/
FLOYD TX-
459 PM CDT MON APR 1 2013

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL FLOYD COUNTY WILL
EXPIRE AT 500 PM CDT...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
HOWEVER SMALL HAIL IS STILL POSSIBLE WITH THIS THUNDERSTORM.

LAT...LON 3410 10121 3407 10139 3426 10146 3431 10134
TIME...MOT...LOC 2159Z 260DEG 24KT 3418 10127

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 1, 2:25 PM CDTSpecial Weather StatementLUBHall35 min
Apr 1, 3:09 PM CDTSpecial Weather StatementLUBSwisher36 min
Apr 1, 3:14 PM CDTSevere Thunderstorm WarningLUBBriscoe, Swisher46 min
Apr 1, 3:31 PM CDTSpecial Weather StatementLUBHall44 min
Apr 1, 3:44 PM CDTSevere Thunderstorm WarningLUBChildress, Hall31 min
Apr 1, 3:44 PM CDTSevere Thunderstorm WarningLUBHale46 min
Apr 1, 3:58 PM CDTSevere Thunderstorm WarningLUBBriscoe, Swisher47 min
Apr 1, 4:06 PM CDTSpecial Weather StatementLUBHall24 min
Apr 1, 4:14 PM CDTSevere Thunderstorm WarningLUBBriscoe, Hall46 min
Apr 1, 4:16 PM CDTSevere Thunderstorm WarningLUBChildress, Hall44 min
Apr 1, 4:46 PM CDTSevere Thunderstorm WarningLUBBriscoe44 min
Apr 1, 4:57 PM CDTSevere Thunderstorm WarningLUBChildress, Cottle, Hall, Motley48 min
Apr 1, 4:57 PM CDTTornado WarningLUBBriscoe33 min
Apr 1, 4:59 PM CDTSevere Thunderstorm WarningLUBChildress31 min
Apr 1, 5:25 PM CDTSevere Thunderstorm WarningLUBFloyd, Motley35 min
Apr 1, 5:30 PM CDTSevere Thunderstorm WarningLUBBriscoe, Hall30 min
Apr 1, 5:42 PM CDTSevere Thunderstorm WarningLUBCottle, Motley48 min
Apr 1, 5:59 PM CDTSevere Thunderstorm WarningLUBMotley31 min
Apr 1, 6:30 PM CDTSevere Thunderstorm WarningLUBCottle, Dickens, King, Motley30 min
Apr 1, 6:53 PM CDTSevere Thunderstorm WarningLUBCottle, Dickens, King, Motley52 min

Nearby

Severe Thunderstorm Warnings in Texas, 2013Every severe thunderstorm warning in 2013

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.