Alert archive / Louisiana / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 71, NWS New Orleans, LA

February 26, 1998Pointe Coupee Parish, West Feliciana Parish, Louisiana

NWS New Orleans, LA issued this severe thunderstorm warning at Feb 26, 1998, 9:18 AM CST for Pointe Coupee Parish, West Feliciana Parish, Louisiana. It was in force for 72 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
Feb 26, 1998, 9:18 AM CST (15:18 UTC)
Expired
Feb 26, 1998, 10:30 AM CST
In force
72 min
Issued by
NWS New Orleans, LA
Area
Whole counties

Counties Pointe Coupee Parish, LA, West Feliciana Parish, LA

What was reported inside it

TimeReportWhereRemark
Feb 26, 9:50 AM CSTThunderstorm WindInnis, 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.

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 3.3 hours before the alert went out and 178 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 1998-02-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 428 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 1998-02-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 263 square meters per square second.1939587897Sfc1 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
428 J/kg
Mixed-layer CIN
-42 J/kg
Mixed-layer LCL
616 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
263 m²/s²
0-3 km storm-relative helicity
323 m²/s²
Significant tornado parameter
0.6
Supercell composite
4.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KNEW 261518 RRA
SVRNEW
LAC005-033-034-037-047-121-125-MSC005-157-261630-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
918 AM CST THU FEB 26 1998

THE NATIONAL WEATHER SERVICE IN NEW ORLEANS LA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1030 AM CST
FOR PEOPLE IN THE FOLLOWING LOCATIONS...

IN SOUTHEASTERN LOUISIANA

   ...POINTE COUPEE PARISH
   ...WEST FELICIANA PARISH
   ...EAST FELICIANA PARISH
   ...WEST BATON ROUGE PARISH
   ...EAST BATON ROUGE PARISH
   ...IBERVILLE PARISH
   ...ASCENSION PARISH

IN SOUTHERN MISSISSIPPI

   ...WILKINSON COUNTY
   ...WESTERN AMITE COUNTY

AT 915 AM CST...A SOLID LINE OF SEVERE THUNDERSTORMS WAS INDICATED
BY DOPPLER RADAR EXTENDING FROM WESTERN ST. LANDRY PARISH NEAR
OPELOUSAS SOUTH TO NEAR LAFAYETTE...MOVING NORTHEAST AT 60 MILES AN
HOUR. STRONG WIND GUSTS IN EXCESS OF 60 MILES AN HOUR WILL LIKELY
AFFECT THE WARNED COUNTIES AND PARISHES INCLUDING THE GREATER BATON
RAOUGE AREA BETWEEN 930 AND 1030 AM.



THIS IS A DANGEROUS STORM.  IF YOU ARE IN ITS PATH YOU SHOULD
PREPARE FOR DAMAGING WIND IN EXCESS OF 55 MPH...LARGE HAIL...AND
DEADLY LIGHTNING.  PEOPLE OUTSIDE SHOULD MOVE TO JA SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT STAY AWAY FROM WINDOWS.

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, Feb 26, 9:15 AM CST, 3 minutes before
LAZ038>040-049-050-056>070-MSZ077-080>082-270000-

THUNDERSTORM OUTLOOK
NATIONAL WEATHER SERVICE NEW ORLEANS LA
915 AM CST THU FEB 26 1998

A LINE OF STRONG TO SEVERE THUNDERSTORMS WERE PUSHING EAST AT 45 MPH.
THIS LINE WILL PUSH INTO SOUTHCENTRAL AND SOUTHEAST LOUISIANA THROUGH
AROUND NOON TODAY. EXPECT SEVERE THUNDERSTORM GUSTS...HAIL...AND
POSSIBLE TORNADOS WITH THIS LINE.

KEEP TUNED TO NOAA WEATHER RADIO...LOCAL AND CABLE TELEVISION
STATIONS.L..AND LOCAL RADIO FOR THE LATEST WATCHES AND WARNINGS
FOR THIS LINE. YOU CAN ALSO VISIT OUR HOME PAGE AT:
                  WWW.SRH.NOAA.GOV/FTPROOT/LIX.
Special weather statement, Feb 26, 9:15 AM CST, 3 minutes before
LAZ038>040-049-050-056>070-MSZ077-080>082-270000-

THUNDERSTORM OUTLOOK
NATIONAL WEATHER SERVICE NEW ORLEANS LA
915 AM CST THU FEB 26 1998

A LINE OF STRONG TO SEVERE THUNDERSTORMS WERE PUSHING EAST AT 45 MPH.
THIS LINE WILL PUSH INTO SOUTHCENTRAL AND SOUTHEAST LOUISIANA THROUGH
AROUND NOON TODAY. EXPECT SEVERE THUNDERSTORM GUSTS...HAIL...AND
POSSIBLE TORNADOS WITH THIS LINE.

KEEP TUNED TO NOAA WEATHER RADIO...LOCAL AND CABLE TELEVISION
STATIONS.L..AND LOCAL RADIO FOR THE LATEST WATCHES AND WARNINGS
FOR THIS LINE. YOU CAN ALSO VISIT OUR HOME PAGE AT:
                  WWW.SRH.NOAA.GOV/FTPROOT/LIX.

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 26, 9:18 AM CSTSevere Thunderstorm WarningLIXAscension, East Baton Rouge, East Feliciana, Iberville, West Baton Rouge72 min
Feb 26, 10:24 AM CSTSevere Thunderstorm WarningLIXEast Feliciana, Saint Helena66 min
Feb 26, 10:24 AM CSTSevere Thunderstorm WarningLIXTangipahoa66 min
Feb 26, 2:16 PM CSTSevere Thunderstorm WarningLIXWashington49 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 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.