Alert archive / Texas / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 9, NWS Lubbock, TX

April 26, 1998Swisher County, Texas

NWS Lubbock, TX issued this severe thunderstorm warning at Apr 26, 1998, 3:30 PM CDT for Swisher County, Texas. It was in force for 35 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
Apr 26, 1998, 3:30 PM CDT (20:30 UTC)
Expired
Apr 26, 1998, 4:05 PM CDT
In force
35 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 20:32 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

Amarillo Airport, TX (KAMA), launched 12:00Z, 8.5 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 12:00Z on 1998-04-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 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 1998-04-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 30 square meters per square second.1939587897117Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1762 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
30 m²/s²
0-3 km storm-relative helicity
-1 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.

199 
WUUS1 KLBB 262031 RRA
SVRLBB
TXC437-262105-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LUBBOCK TX
330 PM CDT SUN APR 26 1998

THE NATIONAL WEATHER SERVICE IN LUBBOCK HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN SWISHER COUNTY IN THE TEXAS PANHANDLE

* UNTIL 405 PM CDT

* SOME LOCATIONS THAT MAY BE AFFECTED BY THIS STORM INCLUDE:
         TULIA                       AROUND 335 PM CDT

* AT 328 PM CDT... A SEVERE THUNDERSTORM WAS LOCATED 5 MILES WEST OF
  TULIA... INDICATED BY NWS DOPPLER RADAR AND SPOTTERS... MOVING
  NORTHEAST 15 MPH.

DAMAGING WINDS AND LARGE HAIL ARE LIKELY. GO INSIDE A STURDY
BUILDING AND STAY AWAY FROM WINDOWS.

LV

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Apr 26, 11:38 AM CDT, 3 hours 52 minutes before
TXZ021>044-262000-

AREA THUNDERSTORM OUTLOOK
NATIONAL WEATHER SERVICE LUBBOCK TX
1138 AM CDT SUN APR 26 1998

SEVERE THUNDERSTORMS ARE POSSIBLE OVER THE SOUTHEASTERN SOUTH
PLAINS AND SOUTHERN PORTIONS OF THE LOW ROLLING PLAINS THIS
AFTERNOON AND EVENING.  THE FAVORED AREA FOR THESE SEVERE
THUNDERSTORMS WILL BE SOUTH OF A CROSBYTON-GUTHRIE LINE AND EAST
OF THE CAPROCK. ELSEWHERE SCATTERED THUNDERSTORMS ARE EXPECTED TO
DEVELOP WITH A FEW STORMS APPROACHING SEVERE LEVELS.

A STRONG DISTURBANCE MOVING ACROSS SOUTHERN NEW MEXICO WILL
MOVE INTO THE AREA DURING THE AFTERNOON AND EVENING.  THE STORMS ARE
EXPECTED TO DEVELOP ALONG A COLD FRONT THAT WILL VERY SLOWLY SINK
ACROSS THE SOUTHERN PORTIONS OF THE SOUTH PLAINS AND LOW ROLLING
PLAINS.

SPOTTER ACTIVATION MAY BE REQUIRED ACROSS THE SOUTHEASTERN SOUTH
PLAINS AND SOUTHERN LOW ROLLING PLAINS THIS AFTERNOON AND EVENING.

TECHNICAL DISCUSSION

AN AREA OF LOW PRESSURE WILL STRENGTHEN AND MOVE EASTWARD ALONG A
COLD FRONT THAT WAS DRAPED ACROSS THE CENTRAL SOUTH PLAINS.  THIS
LOW WILL DRAG A DRYLINE ACROSS THE SOUTHERN SOUTH PLAINS WITH THE
TRIPLE POINT EXPECTED IN THE ABOVE FAVORED AREA BY 21Z. LI'S AS LOW
AS -8 AND CAPES UP TO 1500 JOULES ARE EXPECTED WHERE MAXIMUM HEATING
CAN BE REALIZED.

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 26, 1:13 PM CDTSevere Thunderstorm WarningLUBCastro, Lamb62 min
Apr 26, 1:32 PM CDTSevere Thunderstorm WarningLUBParmer33 min
Apr 26, 2:00 PM CDTTornado WarningLUBCastro35 min
Apr 26, 2:09 PM CDTSevere Thunderstorm WarningLUBHale66 min
Apr 26, 2:25 PM CDTSevere Thunderstorm WarningLUBParmer50 min
Apr 26, 2:52 PM CDTSevere Thunderstorm WarningLUBLubbock48 min
Apr 26, 3:03 PM CDTTornado WarningLUBCrosby, Floyd32 min
Apr 26, 3:09 PM CDTTornado WarningLUBKent31 min
Apr 26, 3:35 PM CDTTornado WarningLUBCrosby, Floyd50 min
Apr 26, 3:39 PM CDTTornado WarningLUBKent, Stonewall46 min
Apr 26, 4:25 PM CDTTornado WarningLUBStonewall35 min
Apr 26, 4:27 PM CDTSevere Thunderstorm WarningLUBKent48 min
Apr 26, 4:57 PM CDTSevere Thunderstorm WarningLUBBailey, Parmer33 min
Apr 26, 5:30 PM CDTSevere Thunderstorm WarningLUBBailey30 min
Apr 26, 5:41 PM CDTSevere Thunderstorm WarningLUBLamb64 min
Apr 26, 5:57 PM CDTSevere Thunderstorm WarningLUBHockley58 min

Nearby

Severe Thunderstorm Warnings in Texas, 1998Every severe thunderstorm warning in 1998

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.