Alert archive / Louisiana / Severe Thunderstorm Warnings in 1988

Severe Thunderstorm Warning 5, NWS Lake Charles, LA

May 21, 1988Acadia Parish, Lafayette Parish, Louisiana

NWS Lake Charles, LA issued this severe thunderstorm warning at May 21, 1988, 8:17 AM CDT for Acadia Parish, Lafayette Parish, Louisiana. It was in force for 58 min. 1 report 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
May 21, 1988, 8:17 AM CDT (13:17 UTC)
Expired
May 21, 1988, 9:15 AM CDT
In force
58 min
Issued by
NWS Lake Charles, LA
Area
Whole counties

Counties Acadia Parish, LA, Lafayette Parish, LA

The radar

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

What was reported inside it

TimeReportWhereRemark
May 21, 8:40 AM CDTHail 2Lafayette, LA

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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Boothville, LA (KBVE), launched 12:00Z, 1.3 hours before the alert went out and 292 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, Boothville, LA at 12:00Z on 1988-05-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 385 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, Boothville, LA at 12:00Z on 1988-05-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 28 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
385 J/kg
Mixed-layer CIN
-208 J/kg
Mixed-layer LCL
964 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
28 m²/s²
0-3 km storm-relative helicity
112 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.7

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 21, 5:41 AM CDT, 2 hours 36 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE LAKE CHARLES LA
525 AM CDT SAT MAY 21 1988

AT 5.25 AM A LINE...20 MILES WIDE...OF VERY HEAVY THUNDERSTORMS EXTENDED
FROM JUST WEST OF GALVESTON NORTHEASTWARD TO THE SOUTHERN PORTIONS OF
RAYBURN LAKE.

THIS LINE WAS MOVING TOWARD THE EAST AT 30 MPH...AND IT THIS CONTINUES
IT WILL BE MOVING INTO SOUTHWEST LOUISIANA WITHIN THE NEXT TWO HOURS.

THESE THUNDERSTORMS ARE LIKELY TO PRODUCED VERY STORNG GUSTY WINDS...
HEAVY RAINS...AND SOME LOCAL FLOODING CAN ALSO OCCUR.

ELSEWHERE...THUNDERSTORMS AND PATCHES OF RAIN WERE OCCURING IN THE LAKE
CHARLES AREA AND ALSO ALONG THE COASTAL MARSHES BETWEEN CAMERON AND
VERMILION BAY.
Special weather statement, May 21, 7:44 AM CDT, 33 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PORT ARTHUR TX
740 AM CDT SAT MAY 21 1988

...SEVERE THUNDERSTORM WATCH FOR THE GOLDEN TRIANGLE AREA IS NO
   LONGER IN EFFECT...

THE LINE OF VERY STRONG THUNDERSTORMS THAT MOVED THROUGH THE
BEAUMONT...PORT ARTHUR...ORANGE AREA AROUND 6 AM CDT HAD MOVED
EAST AND SOUTHEAST INTO LOUISIANA AND THE GULF WATERS BY 730 AM CDT.
LW

The office that day

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

IssuedProductOfficeCountiesLasted
May 21, 7:54 AM CDTFlash Flood WarningLCHCalcasieu3 hr
May 21, 8:52 AM CDTTornado WarningLCHLafayette53 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 1988Every severe thunderstorm warning in 1988

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.