Alert archive / Texas / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 28, NWS Lubbock, TX

April 11, 1997Floyd County, Texas

NWS Lubbock, TX issued this severe thunderstorm warning at Apr 11, 1997, 12:48 AM CDT for Floyd County, Texas. It was in force for 62 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 11, 1997, 12:48 AM CDT (05:48 UTC)
Expired
Apr 11, 1997, 1:50 AM CDT
In force
62 min
Issued by
NWS Lubbock, TX
Area
Whole counties

County Floyd County, TX

The radar

The Lubbock radar (KLBB), 66 km from the middle of the area, began a volume at 05:48 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 10, 8:45 PM CDTTornado WatchSPC6 hr

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 00:00Z, 5.8 hours before the alert went out and 134 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 1997-04-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 1997-04-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 505 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
572 m above ground
0-6 km bulk shear
92 kt
0-1 km storm-relative helicity
505 m²/s²
0-3 km storm-relative helicity
675 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

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

735 
WUUS1 KLBB 110548 RRA
SVRLBB
TXC153-110650-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LUBBOCK TX
1248 AM CDT FRI APR 11 1997

THE NATIONAL WEATHER SERVICE IN LUBBOCK TX HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 150 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN NORTHWESTERN TEXAS

   ...FLOYD COUNTY
 
AT 1246 AM CDT...A SEVERE THUNDERSTORM WAS INDICATED BY LUBBOCK
DOPPLER RADAR 4 MILES SOUTHWEST OF CROSBYTON MOVING NORTHEAST AT 30
MPH.

THIS STORM IS EXPECTED TO PASS NEAR CROSBYTON BY 1 AM.

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.

$$

JJ

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 10, 7:23 PM CDTSevere Thunderstorm WarningLUBTerry32 min
Apr 10, 7:38 PM CDTTornado WarningLUBSwisher62 min
Apr 10, 7:47 PM CDTTornado WarningLUBHale, Lamb48 min
Apr 10, 7:49 PM CDTSevere Thunderstorm WarningLUBHockley, Lubbock36 min
Apr 10, 7:52 PM CDTFlash Flood WarningLUBSwisher3 hr
Apr 10, 7:55 PM CDTTornado WarningLUBLynn50 min
Apr 10, 8:08 PM CDTSevere Thunderstorm WarningLUBLubbock62 min
Apr 10, 8:26 PM CDTTornado WarningLUBGarza64 min
Apr 10, 8:30 PM CDTSevere Thunderstorm WarningLUBLamb60 min
Apr 10, 8:54 PM CDTSevere Thunderstorm WarningLUBSwisher61 min
Apr 10, 8:55 PM CDTTornado WarningLUBHale20 min
Apr 10, 8:59 PM CDTTornado WarningLUBLubbock36 min
Apr 10, 9:03 PM CDTSevere Thunderstorm WarningLUBTerry47 min
Apr 10, 9:09 PM CDTTornado WarningLUBCrosby46 min
Apr 10, 9:15 PM CDTSevere Thunderstorm WarningLUBBriscoe50 min
Apr 10, 9:17 PM CDTSevere Thunderstorm WarningLUBHale63 min
Apr 10, 9:28 PM CDTSevere Thunderstorm WarningLUBLynn32 min
Apr 10, 9:30 PM CDTTornado WarningLUBLubbock65 min
Apr 10, 9:41 PM CDTTornado WarningLUBDickens64 min
Apr 10, 9:54 PM CDTTornado WarningLUBCrosby61 min
Apr 10, 10:00 PM CDTSevere Thunderstorm WarningLUBLynn35 min
Apr 10, 10:07 PM CDTSevere Thunderstorm WarningLUBFloyd63 min
Apr 10, 10:34 PM CDTSevere Thunderstorm WarningLUBLubbock31 min
Apr 10, 10:43 PM CDTTornado WarningLUBDickens, Motley47 min
Apr 10, 10:55 PM CDTSevere Thunderstorm WarningLUBCrosby60 min
Apr 10, 11:08 PM CDTTornado WarningLUBCottle62 min
Apr 10, 11:51 PM CDTSevere Thunderstorm WarningLUBLynn64 min
Apr 10, 11:56 PM CDTSevere Thunderstorm WarningLUBLubbock64 min
Apr 11, 12:16 AM CDTSevere Thunderstorm WarningLUBFloyd, Motley64 min
Apr 11, 12:58 AM CDTSevere Thunderstorm WarningLUBCrosby52 min
Apr 11, 1:21 AM CDTSevere Thunderstorm WarningLUBKent49 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.