Alert archive / Texas / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 20, NWS Amarillo, TX

May 14, 1998Collingsworth County, Texas

NWS Amarillo, TX issued this severe thunderstorm warning at May 14, 1998, 8:56 PM CDT for Collingsworth County, Texas. It was in force for 29 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 14, 1998, 8:56 PM CDT (01:56 UTC)
Expired
May 14, 1998, 9:25 PM CDT
In force
29 min
Issued by
NWS Amarillo, TX
Area
Whole counties

County Collingsworth County, TX

The watch it was issued in

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

IssuedProductOfficeLasted
May 14, 7:00 PM CDTTornado WatchSPC5 hr

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 00:00Z, 1.9 hours before the alert went out and 133 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 1998-05-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 39 joules per kilogram.LCLEL10008507005003002001001 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 1998-05-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 104 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
39 J/kg
Mixed-layer CIN
-41 J/kg
Mixed-layer LCL
3541 m above ground
0-6 km bulk shear
67 kt
0-1 km storm-relative helicity
104 m²/s²
0-3 km storm-relative helicity
62 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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.

The office that day

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

IssuedProductOfficeCountiesLasted
May 14, 7:52 PM CDTSevere Thunderstorm WarningAMACollingsworth63 min
May 14, 8:48 PM CDTSevere Thunderstorm WarningAMAWheeler32 min
May 15, 1:09 AM CDTSevere Thunderstorm WarningAMAArmstrong61 min
May 15, 1:27 AM CDTSevere Thunderstorm WarningAMADonley, Gray58 min
May 15, 2:08 AM CDTSevere Thunderstorm WarningAMACollingsworth, Hemphill, Wheeler62 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.