Alert archive / Texas / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 159, NWS Shreveport, LA

May 15, 1994Gregg County, Harrison County, Texas

NWS Shreveport, LA issued this severe thunderstorm warning at May 15, 1994, 12:03 AM CDT for Gregg County, Harrison County, Texas. It was in force for 57 min.

The area

The counties it named.

The facts

Issued
May 15, 1994, 12:03 AM CDT (05:03 UTC)
Expired
May 15, 1994, 1:00 AM CDT
In force
57 min
Issued by
NWS Shreveport, LA
Area
Whole counties

Counties Gregg County, TX, Harrison County, TX

The nearest sounding before it

Longview/Gregg, TX (KGGG), launched 00:00Z, 5.1 hours before the alert went out and 18 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, Longview/Gregg, TX at 00:00Z on 1994-05-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3217 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Longview/Gregg, TX at 00:00Z on 1994-05-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 47 square meters per square second.193958Sfc1 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
3217 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
876 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
47 m²/s²
0-3 km storm-relative helicity
113 m²/s²
Significant tornado parameter
0.7
Supercell composite
3.5

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 Shreveport, LA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 14, 7:20 PM CDTSevere Thunderstorm WarningSHVBossier, Caddo70 min
May 14, 8:25 PM CDTSevere Thunderstorm WarningSHVBossier, Webster65 min
May 14, 10:43 PM CDTSevere Thunderstorm WarningSHVBossier, Caddo62 min
May 15, 12:03 AM CDTSevere Thunderstorm WarningSHVBossier, Caddo57 min
May 15, 2:37 AM CDTFlash Flood WarningSHVDe Soto4 hr
May 14, 7:20 PM CDTSevere Thunderstorm WarningSHVHarrison70 min
May 14, 7:50 PM CDTSevere Thunderstorm WarningSHVCass, Marion55 min
May 14, 8:25 PM CDTSevere Thunderstorm WarningSHVRusk65 min
May 14, 8:56 PM CDTSevere Thunderstorm WarningSHVHarrison, Marion64 min
May 14, 8:56 PM CDTSevere Thunderstorm WarningSHVCass64 min
May 14, 9:41 PM CDTSevere Thunderstorm WarningSHVBowie, Cass64 min
May 14, 10:25 PM CDTTornado WarningSHVCass50 min
May 14, 10:37 PM CDTSevere Thunderstorm WarningSHVMarion38 min
May 14, 11:14 PM CDTSevere Thunderstorm WarningSHVCass, Marion61 min
May 15, 2:37 AM CDTFlash Flood WarningSHVHarrison4 hr
May 15, 2:37 AM CDTFlash Flood WarningSHVHarrison, Panola3 hr
May 14, 8:18 PM CDTSevere Thunderstorm WarningSHVLafayette, Miller57 min
May 14, 8:25 PM CDTSevere Thunderstorm WarningSHVColumbia65 min
May 14, 8:56 PM CDTSevere Thunderstorm WarningSHVHempstead, Lafayette, Miller, Nevada64 min
May 14, 9:57 PM CDTSevere Thunderstorm WarningSHVHempstead, Lafayette, Nevada63 min
May 14, 10:06 PM CDTSevere Thunderstorm WarningSHVMiller69 min
May 14, 11:19 PM CDTSevere Thunderstorm WarningSHVHoward, Sevier56 min

Nearby

Severe Thunderstorm Warnings in Texas, 1994Every severe thunderstorm warning in 1994

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.