Alert archive / Texas / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 53, NWS Lubbock, TX

May 7, 1997Floyd County, Texas

NWS Lubbock, TX issued this severe thunderstorm warning at May 7, 1997, 7:28 PM CDT for Floyd County, Texas. It was in force for 47 min. 2 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
May 7, 1997, 7:28 PM CDT (00:28 UTC)
Expired
May 7, 1997, 8:15 PM CDT
In force
47 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 00:30 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.

What was reported inside it

TimeReportWhereRemark
May 7, 7:30 PM CDTHail 1Lockney, TX
May 7, 7:48 PM CDTHail 1.5Lockney, TX

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

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

IssuedProductOfficeLasted
May 7, 5:00 PM CDTSevere Thunderstorm WatchSPC6 hr
May 7, 6:45 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Midland Regional, TX (KMAF), launched 00:00Z, 0.5 hours before the alert went out and 250 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 1997-05-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1891 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, Midland Regional, TX at 00:00Z on 1997-05-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 83 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
1891 J/kg
Mixed-layer CIN
-148 J/kg
Mixed-layer LCL
2000 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
83 m²/s²
0-3 km storm-relative helicity
138 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KLBB 080030 RRA
SVRLBB
TXC153-080115-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LUBBOCK TX
728 PM CDT WED MAY 7 1997

THE NATIONAL WEATHER SERVICE IN LUBBOCK TX HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 815 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN NORTHWESTERN TEXAS

   ...FLOYD COUNTY
 
AT 726 PM CDT...A SEVERE THUNDERSTORM WAS INDICATED BY LUBBOCK
DOPPLER RADAR AND SPOTTER REPORTS 11 MILES NORTH NORTHWEST OF
FLOYDADA OR 9 MILES SOUTHWEST OF SOUTH PLAINS MOVING EAST AT 20 MPH.

THIS STORM IS EXPECTED TO BE IN THE VICINITY OF...
     SOUTH PLAINS      BY  745 PM CDT
     CEDAR HILL        BY  800 PM CDT

THIS STORM HAS ALREADY PRODUCED QUARTER-SIZE HAIL NEAR LOCKNEY.

WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING. DO NOT STAND BY WINDOWS. DO NOT USE TELEPHONES OR
ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM HAS
PASSED. MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.



LV
 

&

The office that day

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

IssuedProductOfficeCountiesLasted
May 7, 7:26 PM CDTSevere Thunderstorm WarningLUBHale49 min
May 7, 8:13 PM CDTSevere Thunderstorm WarningLUBFloyd47 min
May 7, 8:23 PM CDTSevere Thunderstorm WarningLUBHale47 min
May 7, 8:30 PM CDTSevere Thunderstorm WarningLUBHockley, Lubbock45 min
May 7, 9:03 PM CDTSevere Thunderstorm WarningLUBFloyd47 min
May 8, 4:44 PM CDTSevere Thunderstorm WarningLUBKent61 min
May 8, 5:36 PM CDTFlash Flood WarningLUBKent114 min
May 8, 5:44 PM CDTSevere Thunderstorm WarningLUBHall46 min
May 8, 5:59 PM CDTSevere Thunderstorm WarningLUBKent46 min
May 8, 6:24 PM CDTSevere Thunderstorm WarningLUBYoakum46 min
May 8, 6:32 PM CDTSevere Thunderstorm WarningLUBHall48 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.