Alert archive / Texas / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 49, NWS Lubbock, TX

May 6, 1997Swisher County, Texas

NWS Lubbock, TX issued this severe thunderstorm warning at May 6, 1997, 9:36 PM CDT for Swisher County, Texas. It was in force for 64 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
May 6, 1997, 9:36 PM CDT (02:36 UTC)
Expired
May 6, 1997, 10:40 PM CDT
In force
64 min
Issued by
NWS Lubbock, TX
Area
Whole counties

County Swisher County, TX

The radar

The Amarillo radar (KAMA), 78 km from the middle of the area, began a volume at 02:36 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
May 6, 8:45 PM CDTTornado WatchSPC6 hr

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 00:00Z, 2.6 hours before the alert went out and 78 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 00:00Z on 1997-05-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1294 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 00:00Z on 1997-05-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 165 square meters per square second.19395878Sfc1 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
1294 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
1869 m above ground
0-6 km bulk shear
55 kt
0-1 km storm-relative helicity
165 m²/s²
0-3 km storm-relative helicity
365 m²/s²
Significant tornado parameter
0.3
Supercell composite
14.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KLBB 070238 RRA
SVRLBB
TXC437-070340-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LUBBOCK TX
936 PM CDT TUE MAY 6 1997

THE NATIONAL WEATHER SERVICE IN LUBBOCK TX HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1040 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN THE TEXAS PANHANDLE

   ...SWISHER COUNTY
 
AT 935 PM CDT...A SEVERE THUNDERSTORM WAS INDICATED BY LUBBOCK
DOPPLER RADAR 16 MILES SOUTHWEST OF TULIA OR 12 MILES WEST OF KRESS
MOVING EAST SOUTHEAST AT 25 MPH.  THIS STORM HAS A HISTORY OF
PRODUCING NICKEL-SIZED HAIL.

THIS STORM IS EXPECTED TO BE IN THE VICINITY OF...
     KRESS             BY  1000 PM CDT

A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA.
REMEMBER...SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE
TORNADOES WITH LITTLE OR NO ADVANCE WARNING. REMAIN CALM BUT BE
ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS.



GW/LP

The office that day

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

IssuedProductOfficeCountiesLasted
May 6, 7:18 PM CDTSevere Thunderstorm WarningLUBParmer62 min
May 6, 7:39 PM CDTSevere Thunderstorm WarningLUBCastro66 min
May 6, 8:14 PM CDTTornado WarningLUBCastro51 min
May 6, 8:18 PM CDTSevere Thunderstorm WarningLUBParmer62 min
May 6, 9:05 PM CDTSevere Thunderstorm WarningLUBCastro65 min
May 6, 9:57 PM CDTSevere Thunderstorm WarningLUBHale63 min
May 7, 6:05 PM CDTSevere Thunderstorm WarningLUBHale50 min

Nearby

Severe Thunderstorm Warnings in Texas, 1997Every severe thunderstorm warning in 1997

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.