Alert archive / Louisiana / Severe Thunderstorm Warnings in 1987

Severe Thunderstorm Warning 104, NWS Lake Charles, LA

December 19, 1987Vernon Parish, Louisiana

NWS Lake Charles, LA issued this severe thunderstorm warning at Dec 19, 1987, 2:08 PM CST for Vernon Parish, Louisiana. It was in force for 67 min.

The area

The counties it named.

The facts

Issued
Dec 19, 1987, 2:08 PM CST (20:08 UTC)
Expired
Dec 19, 1987, 3:15 PM CST
In force
67 min
Issued by
NWS Lake Charles, LA
Area
Whole counties

County Vernon Parish, LA

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 8.1 hours before the alert went out and 110 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 1987-12-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4 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 1987-12-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 325 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
4 J/kg
Mixed-layer CIN
-86 J/kg
Mixed-layer LCL
589 m above ground
0-6 km bulk shear
60 kt
0-1 km storm-relative helicity
325 m²/s²
0-3 km storm-relative helicity
340 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.

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, Dec 19, 12:35 PM CST, 1 hour 33 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PORT ARTHUR TX
1230PM CST TUE DEC 19 1987

A SEVERE THUNDERSTORM WATCH CONTINUES IN EFFECT UNTIL 5PM CST FOR
MOST OF SOUTHEAST AND EAST TEXAS.

AT 1230PM CST A LINE OF VERY HEAVY THUNDERSTORMS WAS LOCATED FROM
NEAR NACOGDOCHES TO HUNTSVILLE TO NEAR VICTORIA.  THE STORMS WERE
MOVING NORTHEAST AT 30 TO 35 MPH.  EARLIER STORMS HAD PRODUCED
DAMAGING WINDS IN CENTRAL TEXAS.

THE STORMS WILL FIRST MOVE THROUGH THE EAST TEXAS LAKES AREA.
BOATERS ON SAM RAYBURN AND TOLEDO BEND SHOULD PAY CLOSE ATTENTION TO
LOCAL WEATHER CONDITIONS AND BE PREPARED TO MOVE TO SHELTERED WATERS.

MUCH LATER THIS AFTERNOON THE STORMS WILL MOVE THROUGH THE GOLDEN
TRIANGLE AND THE GULF COASTAL WATERS.

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 19, 1:06 PM CSTSevere Thunderstorm WarningLCHSabine, San Augustine54 min
Dec 19, 1:40 PM CSTSevere Thunderstorm WarningLCHHardin, Jasper, Sabine, San Augustine, Tyler50 min
Dec 19, 2:00 PM CSTTornado WarningLCHHardin, Tyler60 min
Dec 19, 2:25 PM CSTSevere Thunderstorm WarningLCHJasper, Newton50 min
Dec 19, 3:05 PM CSTSevere Thunderstorm WarningLCHHardin55 min
Dec 19, 3:17 PM CSTTornado WarningLCHHardin, Jasper43 min
Dec 19, 2:57 PM CSTSevere Thunderstorm WarningLCHAllen, Beauregard63 min
Dec 19, 3:01 PM CSTSevere Thunderstorm WarningLCHGrant, Rapides59 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 1987Every severe thunderstorm warning in 1987

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.