Alert archive / Texas / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 147, NWS Houston/Galveston, TX

July 14, 1998Liberty County, Texas

NWS Houston/Galveston, TX issued this severe thunderstorm warning at Jul 14, 1998, 3:48 PM CDT for Liberty County, Texas. It was in force for 62 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
Jul 14, 1998, 3:48 PM CDT (20:48 UTC)
Expired
Jul 14, 1998, 4:50 PM CDT
In force
62 min
Issued by
NWS Houston/Galveston, TX
Area
Whole counties

County Liberty County, TX

The radar

The Houston radar (KHGX), 80 km from the middle of the area, began a volume at 20:49 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
Jul 14, 4:12 PM CDTHail 0.75Dayton, TX
Jul 14, 4:12 PM CDTThunderstorm WindDayton, TXNumerous trees down. Billboards and street signs damaged from high wind

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

Lake Charles Mun, LA (KLCH), launched 12:00Z, 8.8 hours before the alert went out and 155 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 1998-07-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2238 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 1998-07-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -1 square meters per square second.1939Sfc1 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
2238 J/kg
Mixed-layer CIN
-9 J/kg
Mixed-layer LCL
687 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
-1 m²/s²
0-3 km storm-relative helicity
0 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 Houston/Galveston, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 13, 8:26 PM CDTSevere Thunderstorm WarningHGXSan Jacinto, Walker59 min
Jul 14, 3:06 PM CDTSevere Thunderstorm WarningHGXChambers59 min
Jul 14, 3:33 PM CDTSevere Thunderstorm WarningHGXHarris62 min
Jul 14, 3:41 PM CDTSevere Thunderstorm WarningHGXMontgomery44 min
Jul 14, 4:03 PM CDTSevere Thunderstorm WarningHGXChambers62 min
Jul 14, 4:08 PM CDTSevere Thunderstorm WarningHGXWashington62 min
Jul 14, 4:27 PM CDTSevere Thunderstorm WarningHGXHarris63 min
Jul 14, 4:40 PM CDTSevere Thunderstorm WarningHGXBrazoria, Galveston60 min
Jul 14, 4:40 PM CDTSevere Thunderstorm WarningHGXFort Bend60 min
Jul 14, 4:47 PM CDTSevere Thunderstorm WarningHGXChambers, Liberty63 min
Jul 14, 5:12 PM CDTSevere Thunderstorm WarningHGXColorado63 min
Jul 14, 6:10 PM CDTSevere Thunderstorm WarningHGXColorado65 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; radar from the NEXRAD Level II archive.