Alert archive / Texas / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 133, NWS Houston/Galveston, TX

June 15, 1998Montgomery County, Texas

NWS Houston/Galveston, TX issued this severe thunderstorm warning at Jun 15, 1998, 4:23 PM CDT for Montgomery County, Texas. It was in force for 57 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
Jun 15, 1998, 4:23 PM CDT (21:23 UTC)
Expired
Jun 15, 1998, 5:20 PM CDT
In force
57 min
Issued by
NWS Houston/Galveston, TX
Area
Whole counties

County Montgomery County, TX

The watch it was issued in

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

IssuedProductOfficeLasted
Jun 15, 4:00 PM CDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 9.4 hours before the alert went out and 222 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, Lake Charles Mun, LA at 12:00Z on 1998-06-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1648 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, Lake Charles Mun, LA at 12:00Z on 1998-06-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 34 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
1648 J/kg
Mixed-layer CIN
-170 J/kg
Mixed-layer LCL
812 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
34 m²/s²
0-3 km storm-relative helicity
293 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.6

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 Houston/Galveston, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 15, 1:58 PM CDTSevere Thunderstorm WarningHGXColorado57 min
Jun 15, 3:44 PM CDTSevere Thunderstorm WarningHGXBurleson, Washington51 min
Jun 15, 4:09 PM CDTSevere Thunderstorm WarningHGXGrimes46 min
Jun 15, 4:32 PM CDTSevere Thunderstorm WarningHGXHarris63 min
Jun 15, 5:17 PM CDTSevere Thunderstorm WarningHGXLiberty, San Jacinto63 min
Jun 15, 5:35 PM CDTSevere Thunderstorm WarningHGXHouston, Trinity45 min
Jun 15, 5:36 PM CDTSevere Thunderstorm WarningHGXMontgomery64 min
Jun 15, 6:11 PM CDTSevere Thunderstorm WarningHGXColorado, Jackson, Wharton64 min
Jun 15, 6:53 PM CDTSevere Thunderstorm WarningHGXHouston, Trinity62 min
Jun 15, 6:57 PM CDTSevere Thunderstorm WarningHGXHarris63 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.