Alert archive / Louisiana / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 155, NWS Shreveport, LA

May 18, 1995Ouachita Parish, Louisiana

NWS Shreveport, LA issued this severe thunderstorm warning at May 18, 1995, 7:14 AM CDT for Ouachita Parish, Louisiana. It was in force for 38 min.

The area

The counties it named.

The facts

Issued
May 18, 1995, 7:14 AM CDT (12:14 UTC)
Expired
May 18, 1995, 7:52 AM CDT
In force
38 min
Issued by
NWS Shreveport, LA
Area
Whole counties

County Ouachita Parish, LA

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 0.2 hours before the alert went out and 196 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, Jackson, MS at 12:00Z on 1995-05-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 698 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, Jackson, MS at 12:00Z on 1995-05-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 271 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
698 J/kg
Mixed-layer CIN
-197 J/kg
Mixed-layer LCL
878 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
271 m²/s²
0-3 km storm-relative helicity
335 m²/s²
Significant tornado parameter
0.0
Supercell composite
7.3

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.

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, May 18, 4:09 AM CDT, 3 hours 5 minutes before
TXZ137-138-150-151-153-165-152-166-167-181015-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
409 AM CDT THU MAY 18 1995

...SEVERE THUNDERSTORM WATCH FOR EASTERN TEXAS INCLUDING ANGELINA...SAN
AUGUSTINE...AND NACOGDOCHES COUNTIES...

AT 405 AM CDT NATIONAL WEATHER SERVICE RADAR IN SHREVEPORT SHOWED A 65
MILE WIDE AREA OF SHOWERS AND THUNDERSTORMS EXTENDING SOUTHEAST OF A
LINE FROM CENTERVILLE TO RUSK TEXAS.  THE STRONGEST THUNDERSTORMS ARE
LOCATED NEAR HUNTSVILLE AND CROCKETT TEXAS. SOME OF THESE STORM ARE
CAPABLE OF PRODUCING PEA TO MARBLE SIZED HAIL.

MOVEMENT WAS TO THE NORTHEAST AT 50 MPH.

NNNN

The office that day

Everything else NWS Shreveport, LA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 18, 5:16 AM CDTSevere Thunderstorm WarningSHVCaddo, De Soto59 min
May 18, 5:16 AM CDTSevere Thunderstorm WarningSHVBossier59 min
May 18, 5:33 AM CDTSevere Thunderstorm WarningSHVClaiborne, Webster57 min
May 18, 5:49 AM CDTSevere Thunderstorm WarningSHVBienville, Red River56 min
May 18, 6:15 AM CDTSevere Thunderstorm WarningSHVDe Soto30 min
May 18, 6:38 AM CDTSevere Thunderstorm WarningSHVLincoln, Union52 min
May 18, 6:38 AM CDTSevere Thunderstorm WarningSHVJackson52 min
May 18, 6:51 AM CDTSevere Thunderstorm WarningSHVBienville, Red River54 min
May 18, 7:14 AM CDTSevere Thunderstorm WarningSHVWinn38 min
May 18, 4:43 AM CDTSevere Thunderstorm WarningSHVNacogdoches32 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 1995Every severe thunderstorm warning in 1995

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.