Alert archive / Texas / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 11, NWS Amarillo, TX

May 8, 1998Oldham County, Texas

NWS Amarillo, TX issued this severe thunderstorm warning at May 8, 1998, 2:30 PM CDT for Oldham County, Texas. It was in force for 65 min. 1 report 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 8, 1998, 2:30 PM CDT (19:30 UTC)
Expired
May 8, 1998, 3:35 PM CDT
In force
65 min
Issued by
NWS Amarillo, TX
Area
Whole counties

County Oldham County, TX

What was reported inside it

TimeReportWhereRemark
May 8, 3:11 PM CDTHail 1Boys Ranch, 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 nearest sounding before it

Amarillo Airport, TX (KAMA), launched 12:00Z, 7.5 hours before the alert went out and 84 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 1998-05-08Temperature 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 12:00Z on 1998-05-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 114 square meters per square second.1939587897117136Sfc1 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
1677 m above ground
0-6 km bulk shear
79 kt
0-1 km storm-relative helicity
114 m²/s²
0-3 km storm-relative helicity
149 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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.

NWS Amarillo, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at May 8, 11:15 AM CDT, 3 hours 15 minutes earlier.

Area forecast discussion, May 8, 11:15 AM CDT, 3 hours 15 minutes before
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In the hours before

Special weather statement, May 8, 1:00 PM CDT, 1 hour 30 minutes before
OKZ001>003-TXZ001>020-090200-

TEXAS/OKLAHOMA PANHANDLES THUNDERSTORM OUTLOOK
NATIONAL WEATHER SERVICE AMARILLO TX
100 PM CDT FRI MAY 8 1998

THERE IS A MODERATE RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON AND
THIS EVENING ACROSS MOST OF THE SOUTHEASTERN TEXAS PANHANDLE.
THIS AREA IS SOUTH AND EAST OF A WHEELER TO PANHANDLE TO CANYON
LINE.

SURROUNDING THE MODERATE RISK AREA IS A SLIGHT RISK AREA WHICH
INCLUDES THE REMAINDER OF THE TEXAS PANHANDLE AND ALL OF THE
OKLAHOMA PANHANDLE.

A STRONG LOW PRESSURE SYSTEM IN THE UPPER ATMOSPHERE OVER THE
SOUTHWESTERN STATES WILL MOVE EAST THIS AFTERNOON AND PRODUCE A
SURFACE LOW IN THE TEXAS PANHANDLE.  THE SURFACE LOW WILL DRAW DEEP
LOW LEVEL MOISTURE FROM THE SOUTHEAST INTO THE AREA.  A WARM FRONT
NEAR LUBBOCK WILL TRIGGER THUNDERSTORMS AS IT MOVES NORTHWARD INTO
THE AREA THIS AFTERNOON INTO TONIGHT.  A STRONG JET STREAM OVER
WEST TEXAS WILL ALLOW THESE STORMS TO BECOME SEVERE.

THE GREATEST THREAT FROM THESE SEVERE THUNDERSTORMS WILL BE VERY
LARGE HAIL...DAMAGING WINDS...AND POSSIBLY A FEW INTENSE TORNADOES.

SPOTTER GROUPS AND EMERGENCY MANAGEMENT OFFICIALS IN THE OKLAHOMA AND
TEXAS PANHANDLES WILL LIKELY BE NEEDED THIS AFTERNOON THROUGH THIS
EVENING AND SHOULD BE READY FOR QUICK ACTIVATION.

SCHNEIDER
Special weather statement, May 8, 1:00 PM CDT, 1 hour 30 minutes before
OKZ001>003-TXZ001>020-090200-

TEXAS/OKLAHOMA PANHANDLES THUNDERSTORM OUTLOOK
NATIONAL WEATHER SERVICE AMARILLO TX
100 PM CDT FRI MAY 8 1998

THERE IS A MODERATE RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON AND
THIS EVENING ACROSS MOST OF THE SOUTHEASTERN TEXAS PANHANDLE.
THIS AREA IS SOUTH AND EAST OF A WHEELER TO PANHANDLE TO CANYON
LINE.

SURROUNDING THE MODERATE RISK AREA IS A SLIGHT RISK AREA WHICH
INCLUDES THE REMAINDER OF THE TEXAS PANHANDLE AND ALL OF THE
OKLAHOMA PANHANDLE.

A STRONG LOW PRESSURE SYSTEM IN THE UPPER ATMOSPHERE OVER THE
SOUTHWESTERN STATES WILL MOVE EAST THIS AFTERNOON AND PRODUCE A
SURFACE LOW IN THE TEXAS PANHANDLE.  THE SURFACE LOW WILL DRAW DEEP
LOW LEVEL MOISTURE FROM THE SOUTHEAST INTO THE AREA.  A WARM FRONT
NEAR LUBBOCK WILL TRIGGER THUNDERSTORMS AS IT MOVES NORTHWARD INTO
THE AREA THIS AFTERNOON INTO TONIGHT.  A STRONG JET STREAM OVER
WEST TEXAS WILL ALLOW THESE STORMS TO BECOME SEVERE.

THE GREATEST THREAT FROM THESE SEVERE THUNDERSTORMS WILL BE VERY
LARGE HAIL...DAMAGING WINDS...AND POSSIBLY A FEW INTENSE TORNADOES.

SPOTTER GROUPS AND EMERGENCY MANAGEMENT OFFICIALS IN THE OKLAHOMA AND
TEXAS PANHANDLES WILL LIKELY BE NEEDED THIS AFTERNOON THROUGH THIS
EVENING AND SHOULD BE READY FOR QUICK ACTIVATION.

SCHNEIDER

The office that day

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

IssuedProductOfficeCountiesLasted
May 8, 3:15 PM CDTSevere Thunderstorm WarningAMAHartley60 min
May 8, 3:46 PM CDTSevere Thunderstorm WarningAMADallam64 min
May 8, 5:05 PM CDTSevere Thunderstorm WarningAMACollingsworth, Donley65 min
May 7, 7:42 PM CDTSevere Thunderstorm WarningAMABeaver48 min
May 8, 4:40 PM CDTSevere Thunderstorm WarningAMACimarron65 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.