Alert archive / Louisiana / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 111, NWS Jackson, MS

March 7, 1998Concordia Parish, Louisiana

NWS Jackson, MS issued this severe thunderstorm warning at Mar 7, 1998, 12:06 PM CST for Concordia Parish, Louisiana. It was in force for 39 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Mar 7, 1998, 12:06 PM CST (18:06 UTC)
Expired: Mar 7, 1998, 12:45 PM CST
In force: 39 min
Issued by: NWS Jackson, MS
Area: Whole counties

County Concordia Parish, LA

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 6.1 hours before the alert went out and 176 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 2 J/kg
Mixed-layer CIN: -286 J/kg
Mixed-layer LCL: 599 m above ground
0-6 km bulk shear: 63 kt
0-1 km storm-relative helicity: 114 m²/s²
0-3 km storm-relative helicity: 281 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

094 
WUUS1 KJAN 071803 RRA
SVRJAN
LAC029-071845-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSON MS
1206 PM CST SAT MAR 7 1998
 
THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1245 PM CST
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTHEAST LOUISIANA
 
   ...NORTHERN CONCORDIA PARISH
 
AT 1203 PM RADAR INDICATED A SEVERE THUNDERSTORM 6 MILES WEST OF
FERRIDAY. THE STORM IS MOVING NORTHEAST 45 MPH AND WILL PASS NEAR
FERRIDAY BY 1215 PM. LARGE HAIL IS POSSIBLE WITH THIS STORM.
 
SEVERE THUNDERSTORMS PRODUCE WIND IN EXCESS OF 55 MPH...LARGE
HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.  MOVE TO AN
INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS.
<
 
 
75

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

Local storm report, Mar 7, 8:04 AM CST, 4 hours 2 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
804 AM CST SAT MAR 07 1998

TIME(CST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....PARISH/COUNTY LOCATION....

0455 AM    BROOKHAVEN                MS   .75 INCH HAIL
03/07/98   LINCOLN                        REPORTED IN
                                          DOWNTOWN BROOKHAVEN BY EOC

0501 AM    HATTIESBURG               MS   1 INCH HAIL
03/07/98   FORREST                        ONE INCH HAIL IN
                                          HATTIESBURG REPORTED BY
                                          EOC

0530 AM    PINOLA                    MS   1 INCH HAIL
03/07/98   SIMPSON                        ONE INCH HAIL IN PINOLA
                                          AND MENDENHALL REPORTED BY
                                          SO

0555 AM    PURVIS                    MS   1.75 INCH HAIL
03/07/98   LAMAR                          HAIL THROUGHOUT
                                          PURVIS

0740 AM    FITLER                    MS   .75 INCH HAIL
03/07/98   ISSAQUENA                      HAIL COVERS THE
                                          GROUND THROUGHOUT
                                          ISSAQUENA COUNTY REPORTED
                                          BY EOC

0605 AM    HARRISBURG                LA   1.75 INCH HAIL REPORTED
03/07/98   CATAHOULA                      AT MANIFEST AND AMWELL AND
                                          4 S OF HARRISBURG ON HWY 124

Local storm report, Mar 7, 8:04 AM CST, 4 hours 2 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
804 AM CST SAT MAR 07 1998

TIME(CST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....PARISH/COUNTY LOCATION....

0455 AM    BROOKHAVEN                MS   .75 INCH HAIL
03/07/98   LINCOLN                        REPORTED IN
                                          DOWNTOWN BROOKHAVEN BY EOC

0501 AM    HATTIESBURG               MS   1 INCH HAIL
03/07/98   FORREST                        ONE INCH HAIL IN
                                          HATTIESBURG REPORTED BY
                                          EOC

0530 AM    PINOLA                    MS   1 INCH HAIL
03/07/98   SIMPSON                        ONE INCH HAIL IN PINOLA
                                          AND MENDENHALL REPORTED BY
                                          SO

0555 AM    PURVIS                    MS   1.75 INCH HAIL
03/07/98   LAMAR                          HAIL THROUGHOUT
                                          PURVIS

0740 AM    FITLER                    MS   .75 INCH HAIL
03/07/98   ISSAQUENA                      HAIL COVERS THE
                                          GROUND THROUGHOUT
                                          ISSAQUENA COUNTY REPORTED
                                          BY EOC

0605 AM    HARRISBURG                LA   1.75 INCH HAIL REPORTED
03/07/98   CATAHOULA                      AT MANIFEST AND AMWELL AND
                                          4 S OF HARRISBURG ON HWY 124

Special weather statement, Mar 7, 10:00 AM CST, 2 hours 6 minutes before

ARZ074-075-LAZ007>009-015-016-023>026-MSZ018-019-025>029-032>066-072>
074-080400-

AREA THUNDERSTORM OUTLOOK
NATIONAL WEATHER SERVICE JACKSON MS
1000 AM CST SAT MAR 7 1998

...AN OUTBREAK OF SEVERE THUNDERSTORMS POSSIBLE ACROSS THE AREA TODAY AND
   TONIGHT...

STRONG TO SEVERE THUNDERSTORMS HAVE ALREADY OCCURRED THIS MORNING.
SOUTHERLY FLOW WAS TRANSPORTING WARM...MOIST AND UNSTABLE AIR ACROSS THE
AREA. A STRONG UPPER LEVEL DISTURBANCE OVER SOUTHEAST TEXAS WILL MOVE
NORTHEAST OVER THE AREA THIS AFTERNOON AND TONIGHT. THUNDERSTORM COVERAGE
WILL INCREASE AS THE AIRMASS BECOMES EVEN MORE UNSTABLE THIS AFTERNOON.
ALSO...THE VERTICAL WIND PROFILE...INCLUDING VERY STRONG JET STREAM WINDS
WILL BE FAVORABLE FOR SEVERE THUNDERSTORMS.

THE MAIN THREAT FROM THESE STORMS WILL BE LARGE HAIL AND DAMAGING WINDS.
HOWEVER...A FEW TORNADOES ARE POSSIBLE DUE TO THE FAVORABLE VERTICAL WIND
PROFILE. THIS IS A POTENTIALLY DANGEROUS SITUATION...SO THE WEATHER NEEDS
TO BE CLOSELY MONITORED TODAY AND TONIGHT.

ACTIVATION OF STORM SPOTTERS...HAM RADIO OPERATORS AND PUBLIC SAFETY
OFFICIALS WILL BE REQUIRED THROUGH TONIGHT.

FOR MORE INFORMATION PLEASE VISIT OUR WEB SITE AT:
HTTP//WWW.JANNWS.STATE.MS.US  (IN SMALL CASE LETTERS)

Special weather statement, Mar 7, 10:00 AM CST, 2 hours 6 minutes before

ARZ074-075-LAZ007>009-015-016-023>026-MSZ018-019-025>029-032>066-072>
074-080400-

AREA THUNDERSTORM OUTLOOK
NATIONAL WEATHER SERVICE JACKSON MS
1000 AM CST SAT MAR 7 1998

...AN OUTBREAK OF SEVERE THUNDERSTORMS POSSIBLE ACROSS THE AREA TODAY AND
   TONIGHT...

STRONG TO SEVERE THUNDERSTORMS HAVE ALREADY OCCURRED THIS MORNING.
SOUTHERLY FLOW WAS TRANSPORTING WARM...MOIST AND UNSTABLE AIR ACROSS THE
AREA. A STRONG UPPER LEVEL DISTURBANCE OVER SOUTHEAST TEXAS WILL MOVE
NORTHEAST OVER THE AREA THIS AFTERNOON AND TONIGHT. THUNDERSTORM COVERAGE
WILL INCREASE AS THE AIRMASS BECOMES EVEN MORE UNSTABLE THIS AFTERNOON.
ALSO...THE VERTICAL WIND PROFILE...INCLUDING VERY STRONG JET STREAM WINDS
WILL BE FAVORABLE FOR SEVERE THUNDERSTORMS.

THE MAIN THREAT FROM THESE STORMS WILL BE LARGE HAIL AND DAMAGING WINDS.
HOWEVER...A FEW TORNADOES ARE POSSIBLE DUE TO THE FAVORABLE VERTICAL WIND
PROFILE. THIS IS A POTENTIALLY DANGEROUS SITUATION...SO THE WEATHER NEEDS
TO BE CLOSELY MONITORED TODAY AND TONIGHT.

ACTIVATION OF STORM SPOTTERS...HAM RADIO OPERATORS AND PUBLIC SAFETY
OFFICIALS WILL BE REQUIRED THROUGH TONIGHT.

FOR MORE INFORMATION PLEASE VISIT OUR WEB SITE AT:
HTTP//WWW.JANNWS.STATE.MS.US  (IN SMALL CASE LETTERS)

Special weather statement, Mar 7, 11:10 AM CST, 56 minutes before

ARZ074-075-LAZ007>009-015-016-023>026-MSZ018-019-025>029-032>066-072>
074-080400-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
1110 AM CST SAT MAR 7 1998

...SEVERE THUNDERSTORM WATCH 84 HAS EXPIRED...
...ADDITIONAL WEATHER WATCHES LIKELY LATER TODAY...

A LARGE AREA OF RAIN AND A FEW THUNDERSTORMS CONTINUED MOVING TOWARD
THE NORTHEAST ACROSS MISSISSIPPI...NORTHEAST LOUISIANA AND SOUTHEAST
ARKANSAS.  MOST OF THE THUNDERSTORMS HAVE TENDED TO WEAKEN SLIGHTLY
LATE THIS MORNING AND THE SEVERE THUNDERSTORM WATCH HAS BEEN ALLOWED TO
EXPIRE FOR NOW.  AS THE AIRMASS BECOMES EVEN MORE UNSTABLE LATER TODAY...
ADDITIONAL SEVERE WEATHER WATCHES ARE EXPECTED. A STRONG JET STREAM
COMBINING WITH MOIST UNSTABLE AIR WILL FUEL THE REDEVELOPMENT OF
STRONG TO SEVERE THUNDERSTORMS FROM MID AFTERNOON THROUGH TONIGHT.

THE MAIN THREAT FROM THE LATER STORMS WILL BE DAMAGING WINDS AND LARGE
HAIL HOWEVER...A FEW TORNADOES ARE ALSO POSSIBLE.

RESIDENTS IN THE ARKLAMS REGION SHOULD STAY TUNED FOR LATER STATEMENTS
...WATCHES AND WARNINGS AS THIS IS POTENTIALLY A VERY DANGEROUS SYSTEM.
ACTIVATION OF STORM SPOTTERS...HAM RADIO OPERATORS AND PUBLIC SAFETY
OFFICIALS WILL AGAIN BE REQUIRED THROUGH TONIGHT.

FOR MORE INFORMATION PLEASE VISIT OUR WEB SITE AT:
HTTP//WWW.JANNWS.STATE.MS.US  (IN SMALL CASE LETTERS)

Special weather statement, Mar 7, 11:10 AM CST, 56 minutes before

ARZ074-075-LAZ007>009-015-016-023>026-MSZ018-019-025>029-032>066-072>
074-080400-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
1110 AM CST SAT MAR 7 1998

...SEVERE THUNDERSTORM WATCH 84 HAS EXPIRED...
...ADDITIONAL WEATHER WATCHES LIKELY LATER TODAY...

A LARGE AREA OF RAIN AND A FEW THUNDERSTORMS CONTINUED MOVING TOWARD
THE NORTHEAST ACROSS MISSISSIPPI...NORTHEAST LOUISIANA AND SOUTHEAST
ARKANSAS.  MOST OF THE THUNDERSTORMS HAVE TENDED TO WEAKEN SLIGHTLY
LATE THIS MORNING AND THE SEVERE THUNDERSTORM WATCH HAS BEEN ALLOWED TO
EXPIRE FOR NOW.  AS THE AIRMASS BECOMES EVEN MORE UNSTABLE LATER TODAY...
ADDITIONAL SEVERE WEATHER WATCHES ARE EXPECTED. A STRONG JET STREAM
COMBINING WITH MOIST UNSTABLE AIR WILL FUEL THE REDEVELOPMENT OF
STRONG TO SEVERE THUNDERSTORMS FROM MID AFTERNOON THROUGH TONIGHT.

THE MAIN THREAT FROM THE LATER STORMS WILL BE DAMAGING WINDS AND LARGE
HAIL HOWEVER...A FEW TORNADOES ARE ALSO POSSIBLE.

RESIDENTS IN THE ARKLAMS REGION SHOULD STAY TUNED FOR LATER STATEMENTS
...WATCHES AND WARNINGS AS THIS IS POTENTIALLY A VERY DANGEROUS SYSTEM.
ACTIVATION OF STORM SPOTTERS...HAM RADIO OPERATORS AND PUBLIC SAFETY
OFFICIALS WILL AGAIN BE REQUIRED THROUGH TONIGHT.

FOR MORE INFORMATION PLEASE VISIT OUR WEB SITE AT:
HTTP//WWW.JANNWS.STATE.MS.US  (IN SMALL CASE LETTERS)

The office that day

Everything else NWS Jackson, MS issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Mar 7, 12:25 AM CST	Severe Thunderstorm Warning	JAN	Madison	50 min
Mar 7, 12:40 AM CST	Severe Thunderstorm Warning	JAN	Morehouse	50 min
Mar 7, 5:39 AM CST	Severe Thunderstorm Warning	JAN	Catahoula	51 min
Mar 7, 6:37 AM CST	Severe Thunderstorm Warning	JAN	Franklin, Madison	53 min
Mar 7, 6:59 AM CST	Severe Thunderstorm Warning	JAN	East Carroll	46 min
Mar 7, 7:42 AM CST	Severe Thunderstorm Warning	JAN	Franklin, Richland	48 min
Mar 7, 11:31 AM CST	Severe Thunderstorm Warning	JAN	Catahoula	44 min
Mar 7, 11:57 AM CST	Severe Thunderstorm Warning	JAN	Tensas	48 min
Mar 7, 4:13 PM CST	Severe Thunderstorm Warning	JAN	Concordia	47 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 1998 Every 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; the sounding from the Mesonet's radiosonde archive.