Alert archive / Louisiana / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 3, NWS Jackson, MS

January 12, 1998Concordia Parish, Tensas Parish, Louisiana

NWS Jackson, MS issued this severe thunderstorm warning at Jan 12, 1998, 1:36 AM CST for Concordia Parish, Tensas 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
Jan 12, 1998, 1:36 AM CST (07:36 UTC)
Expired
Jan 12, 1998, 2:15 AM CST
In force
39 min
Issued by
NWS Jackson, MS
Area
Whole counties

Counties Concordia Parish, LA, Tensas Parish, LA

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jan 11, 11:30 PM CSTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 00:00Z, 7.6 hours before the alert went out and 149 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 00:00Z on 1998-01-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 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 00:00Z on 1998-01-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 75 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1896 m above ground
0-6 km bulk shear
55 kt
0-1 km storm-relative helicity
75 m²/s²
0-3 km storm-relative helicity
236 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.

409 
WUUS1 KJAN 120739 RRA
SVRJAN
LAC029-107-120815-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSON MS
136 AM CST MON JAN 12 1998
 
THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  215 AM CST
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN NORTHEAST LOUISIANA
 
   ...CONCORDIA PARISH...TENSAS PARISH
 
AT 135 AM RADAR INDICATED A SEVERE THUNDERSTORM JUST 3 MILES NORTHEAST
OF FERRIDAY, LOUISIANA. IT WAS MOVING NORTHEAST AT 40 MILES AN HOUR.
IT WILL AFFECT THE AREAS OF LAKE ST. JOHN...AS WELL AS WATER PROOF
IN SOUTHERN TENSAS PARISH BY 205 AM.
 
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.
<
 
69

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, Jan 11, 11:40 PM CST, 1 hour 56 minutes before
ARZ074-075-LAZ007>009-015-016-120630-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
1140 PM CST SUN JAN 11 1998

...SEVERE THUNDERSTORM WATCH NUMBER 13 HAS BEEN CANCELLED...

RAIN AND THUNDERSTORMS HAVE OVERSPREAD THE AREA BRINGING THE THREAT OF
SEVERE THUNDERSTORMS TO AN END.  HOWEVER...LOCALLY HEAVY RAINS WILL
CONTINUE IN THE ARKLAMS REGION THROUGH THE EARLY MORNING HOURS
DIMINISHING BY DAYBREAK.

FOR MORE INFORMATION...PLEASE VISIT OUR INTERNET SITE ON THE WORLDWIDE
WEB AT HTTP://WWW.JANNWS.STATE.MS.US
Special weather statement, Jan 11, 11:40 PM CST, 1 hour 56 minutes before
ARZ074-075-LAZ007>009-015-016-120630-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
1140 PM CST SUN JAN 11 1998

...SEVERE THUNDERSTORM WATCH NUMBER 13 HAS BEEN CANCELLED...

RAIN AND THUNDERSTORMS HAVE OVERSPREAD THE AREA BRINGING THE THREAT OF
SEVERE THUNDERSTORMS TO AN END.  HOWEVER...LOCALLY HEAVY RAINS WILL
CONTINUE IN THE ARKLAMS REGION THROUGH THE EARLY MORNING HOURS
DIMINISHING BY DAYBREAK.

FOR MORE INFORMATION...PLEASE VISIT OUR INTERNET SITE ON THE WORLDWIDE
WEB AT HTTP://WWW.JANNWS.STATE.MS.US

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; the sounding from the Mesonet's radiosonde archive.