Alert archive / Texas / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 63, NWS San Angelo, TX

May 15, 1998Runnels County, Texas

NWS San Angelo, TX issued this severe thunderstorm warning at May 15, 1998, 2:51 AM CDT for Runnels County, Texas. It was in force for 64 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 15, 1998, 2:51 AM CDT (07:51 UTC)
Expired
May 15, 1998, 3:55 AM CDT
In force
64 min
Issued by
NWS San Angelo, TX
Area
Whole counties

County Runnels County, TX

The radar

The San Angelo radar (KSJT), 71 km from the middle of the area, began a volume at 07:54 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
May 15, 12:00 AM CDTTornado WatchSPC5 hr

The nearest sounding before it

Midland Regional, TX (KMAF), launched 00:00Z, 7.9 hours before the alert went out and 210 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 1998-05-15Temperature 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, Midland Regional, TX at 00:00Z on 1998-05-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 1 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
5985 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
1 m²/s²
0-3 km storm-relative helicity
40 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 San Angelo, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 15, 1:04 AM CDTSevere Thunderstorm WarningSJTMitchell, Sterling46 min
May 15, 1:04 AM CDTSevere Thunderstorm WarningSJTIrion, Tom Green46 min
May 15, 1:37 AM CDTSevere Thunderstorm WarningSJTFisher63 min
May 15, 1:50 AM CDTSevere Thunderstorm WarningSJTMitchell, Sterling, Tom Green50 min
May 15, 1:50 AM CDTSevere Thunderstorm WarningSJTIrion50 min
May 15, 2:03 AM CDTSevere Thunderstorm WarningSJTCoke, Nolan62 min
May 15, 2:33 AM CDTSevere Thunderstorm WarningSJTJones, Taylor62 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.