Alert archive / Mississippi / Severe Thunderstorm Warnings in 1991

Severe Thunderstorm Warning 13, NWS Jackson, MS

February 19, 1991Lawrence County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Feb 19, 1991, 4:52 PM CST for Lawrence County, Mississippi. It was in force for 53 min.

The area

The counties it named.

The facts

Issued
Feb 19, 1991, 4:52 PM CST (22:52 UTC)
Expired
Feb 19, 1991, 5:45 PM CST
In force
53 min
Issued by
NWS Jackson, MS
Area
Whole counties

County Lawrence County, MS

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 10.9 hours before the alert went out and 86 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 12:00Z on 1991-02-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 211 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, Jackson, MS at 12:00Z on 1991-02-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 126 square meters per square second.1939587897117Sfc1 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
211 J/kg
Mixed-layer CIN
-84 J/kg
Mixed-layer LCL
663 m above ground
0-6 km bulk shear
65 kt
0-1 km storm-relative helicity
126 m²/s²
0-3 km storm-relative helicity
132 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.

000 
TTAA00 KJAN 192253
SVRJAN
MSC077-192345-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSON MS
452 PM CST TUE FEB 19 1991
 
THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  545 PM CST
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTH CENTRAL MISSISSIPPI
 
   ...LAWRENCE COUNTY
 
A SEVERE THUNDERSTORM WAS INDICATED MOVING INTO WESTERN LAWRENCE
COUNTY AT 450 PM. THE THUNDERSTORM WAS MOVING TO THE NORTHEAST AT 45
TO 50 MPH AND SHOULD MOVE TO NEAR MONTICELLO BETWEEN 5 AND 530 PM
 
SEVERE THUNDERSTORMS PRODUCE WIND IN EXCESS OF 55 MPH...LARGE
HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.  MOVE TO AN
INTERIOR ROOMs ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS.
<

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 19, 12:54 PM CST, 3 hours 58 minutes before
MSZ009-012-ALZ008-013-192000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MERIDIAN MS
1250 PM CST TUE FEB 19 1991

TORNADO WATCH NUMBER 14 WHICH INCLUDES CLARK...JASPER...KEMPER
...LAUDERDALE...NESHOBA...NEWTON...NOXUBEE...JONES...AND WAYNE
COUNTIES IN EAST CENTRAL MISSISSIPPI AND CHOCTAW AND SUMTER
COUNTIES IN EXTREME WEST CENTRAL ALABAMA IN EFFECT UNTIL 500 PM CST.

NO SEVERE WEATHER HAS BEEN REPORTED TO THE MERIDIAN WEATHER SERVICE
DURING THE PAST TWO HOURS...HOWEVER CONDITIONS REMAIN FAVORABLE
FOR SEVERE WEATHER DEVELOPMENT IN AND CLOSE TO THE WATCH AREA.

AT 1245 PM CST MERIDIAN WEATHER RADAR INDICATED A LARGE AREA OF
RAIN AND THUNDERSTORMS ALONG AND NORTHWEST OF A LINE FROM TUSCALOOSA
ALABAMA TO QUITMAN TO LAUREL MISSISSIPPI. A FEW OF THE THUNDERSTORMS
CONTAIN HEAVY RAIN. INTENSITY OF THE THUNDERSTORMS HAS DECREASED
DURING THE PAST HOUR. THUNDERSTORMS WERE MOVING NORTHEAST AT 40 MPH. <<

k
Special weather statement, Feb 19, 1:46 PM CST, 3 hours 6 minutes before
MSZALL-ARZ014>016-LAZ002-003-004-006-009-010-013-
ALZ004-008-013-016-192040-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE JACKSON MS
130 PM CST TUE FEB 19 1991

...TORNADO WATCH 14 REMAINS IN EFFECT FOR SECTIONS OF EAST AND SOUTH
MISSISSIPPI TIL 5 PM CST...

AT 125 PM CST THUNDERSTORMS WITH HEAVY RAINFALL WERE WIDELY SCATTERED
FROM EAST CENTRAL MISSISSIPPI NEAR MERIDIAN...TO THE SOUTHWEST CORNER
OF MISSISSIPPI.  THE STRONGEST THUNDERSTORMS WERE 15 MILES SOUTHWEST OF
CRYSTAL SPRINGS...AND ALSO BETWEEN GEORGETOWN AND NEW HEBRON.
THESE STORMS MAY PRODUCE GUSTY WINDS...FREQUENT LIGHTNING...AND TORRENTIAL
RAINS.

ELSEWHERE...LIGHT RAIN CONTINUED OVER MUCH OF MISSISSIPPI AND EXTENDED INTO
ADJACENT STATES.

MOVEMENT WAS NORTHEAST AT 40 MPH.
ADDITIONAL SHOWERS AND THUNDERSTORMS FORMING OVER WEST LOUISIANA
AND SOUTH ARKANSAS WILL BE MOVING INTO WEST MISSISSIPPI LATER THIS
AFTERNOON.
Special weather statement, Feb 19, 2:31 PM CST, 2 hours 21 minutes before
MSZ009-012-ALZ008-013-192200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MERIDIAN MS
220 PM CST TUE FEB 19 1991

TORNADO WATCH NUMBER 14 REMAINS IN EFFECT UNTIL 5 PM CST.

FLOOD WARNING FOR NEWTON AND LAUDERDALE COUNTIES IN EAST CENTRAL
MISSISSIPPI IN EFFECT UNTIL 545 PM CST.

TORNADO NUMBER WATCH 14 IS NO LONGER IN EFFECT FOR NOXUBEE AND
NESHOBA COUNTIES IN EAST CENTRAL MISSISSIPPI.

AT 215 PM CST MERIDIAN WEATHER RADAR INDICATED VERY HEAVY RAIN
CONTINUED OVER NEWTON AND LAUDERDALE COUNTIES. ELSEWHERE RAIN
AND THUNDERSTORMS WERE INDICATED ALONG AND NORTHWEST OF A LINE
FROM GREENSBORO ALABAMA TO SHUBUTA TO COLUMBIA MISSISSIPPI.

NEWTON COUNTY C. D. REPORTS WATER OVER MOST COUNTY ROADS IN LOW
LYING AREAS. 4 TO 5 INCHES OF WATER ON STREETS IN HICKORY MISSISSIPPI.
LAUDERDALE COUNTY C. D. REPORTS SEVERAL SMALL STREAMS AT BANKFUL
AND SOME ROADS UNDER WATER.
Special weather statement, Feb 19, 2:40 PM CST, 2 hours 12 minutes before
MSZALL-ARZ014>016-LAZ002-003-004-006-009-010-013-
ALZ004-008-013-016-192140-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE JACKSON MS
230 PM CST TUE FEB 19 1991

...TORNADO WATCH 14 REMAINS IN EFFECT FOR SECTIONS OF EAST AND SOUTH
MISSISSIPPI TIL 5 PM CST...

AT 225 PM CST THUNDERSTORMS WITH HEAVY RAINFALL WERE WIDELY SCATTERED
FROM EAST CENTRAL MISSISSIPPI NEAR MERIDIAN...TO THE SOUTHWEST CORNER
OF MISSISSIPPI.  THE STRONGEST THUNDERSTORMS WERE BETWEEN MONTICELLO AND
PRENTISS AND THESE STORMS MAY PRODUCE GUSTY WINDS...FREQUENT LIGHTNING...
AND TORRENTIAL RAINS.

MOVEMENT WAS NORTHEAST AT 40 MILES AN HOUR.

ELSEWHERE...LIGHT RAIN CONTINUED OVER MUCH OF MISSISSIPPI AND EXTENDED INTO
ADJACENT STATES. HEAVIER RAINS ARE STILL EXPECTED TO REDEVELOP LATER TODAY
THROUGH TONIGHT...MAINLY OVER SOUTH AND EAST COUNTIES.
Special weather statement, Feb 19, 3:42 PM CST, 1 hour 10 minutes before
MSZALL-ARZ014>016-LAZ002-003-004-006-009-010-013-
ALZ004-008-013-016-192240-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE JACKSON MS
330 PM CST TUE FEB 19 1991

...TORNADO WATCH 14 CANCELLED FOR SECTIONS OF EAST AND SOUTH MISSISSIPPI...

AT 325 PM CST THUNDERSTORMS WITH HEAVY RAINFALL WERE WIDELY SCATTERED
FROM EAST CENTRAL MISSISSIPPI NEAR MERIDIAN...ACROSS SOUTH MISSISSIPPI...
TO THE SOUTHWEST CORNER OF MISSISSIPPI.  THE STRONGEST THUNDERSTORMS WERE
BETWEEN NEW HEBRON AND PRENTISS...AND ALSO EAST OF RALEIGH. THESE STORMS
MAY PRODUCE GUSTY WINDS...FREQUENT LIGHTNING AND TORRENTIAL RAINS.

MOVEMENT WAS NORTHEAST AT 40 MILES AN HOUR.

ELSEWHERE...LIGHT RAIN CONTINUE$D OVER MUCH OF MISSISSIPPI AND EXTENDED INTO
ADJACENT STATES. HEAVIER RAINS ARE STILL EXPECTED TO REDEVELOP LATER TODAY.
Special weather statement, Feb 19, 3:50 PM CST, 1 hour 2 minutes before
MSZ009-012-ALZ008-013-192300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MERIDIAN MS
345 PM CST TUE FEB 19 1991

TORNADO WATCH NUMBER 14 HAS BEEN CANCELLED.

FLOOD WARNING FOR NEWTON AND LAUDERDALE COUNTIES IN EAST CENTRAL
MISSISSIPPI CONTINUES IN EFFECT UNTIL 545 PM CST.

A FLASH FLOOD WATCH HAS BEEN ISSUED FOR ALL COUNTIES IN EAST
CENTRAL MISSISSIPPI AND EXTREME WEST CENTRAL ALABAMA.

AT 340 PM CST MERIDIAN WEATHER RADAR INDICATED A LARGE AREA OF
SHOWERS AND THUNDERSTORMS ALONG AND NORTHWEST OF A LINE FROM
CAMP SHELBY MISSISSIPPI TO BIRMINGHAM ALABAMA.

THUNDERSTORMS WITH VERY HEAVY RAIN CONTINUE TO MOVE ACROSS
NEWTON AND LAUDERDALE COUNTIES.  THIS ADDITIONAL HEAVY RAIN WILL
,CONTINUE TO CAUSE FLOODING PROBLEMS.

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 19, 4:48 AM CSTFlash Flood WarningJANBolivar, Sunflower, Washington4 hr
Feb 19, 4:48 AM CSTFlash Flood WarningJANCarroll, Grenada, Leflore4 hr
Feb 19, 4:48 AM CSTFlash Flood WarningJANTallahatchie, Yalobusha4 hr
Feb 19, 6:56 AM CSTFlash Flood WarningJANCalhoun3 hr
Feb 19, 6:56 AM CSTFlash Flood WarningJANMontgomery3 hr
Feb 19, 6:56 AM CSTFlash Flood WarningJANHumphreys, Sharkey3 hr
Feb 19, 6:56 AM CSTFlash Flood WarningJANIssaquena3 hr
Feb 19, 7:25 AM CSTSevere Thunderstorm WarningJANYazoo20 min
Feb 19, 9:06 AM CSTFlash Flood WarningJANCarroll, Grenada, Leflore7 hr
Feb 19, 9:06 AM CSTFlash Flood WarningJANBolivar, Sunflower, Tallahatchie, Washington7 hr
Feb 19, 9:06 AM CSTFlash Flood WarningJANYalobusha7 hr
Feb 19, 9:36 AM CSTSevere Thunderstorm WarningJANNeshoba, Winston54 min
Feb 19, 10:46 AM CSTSevere Thunderstorm WarningJANSmith44 min
Feb 19, 1:36 PM CSTFlash Flood WarningJANLauderdale, Newton4 hr
Feb 19, 4:28 PM CSTFlash Flood WarningJANLeflore, Sunflower, Tallahatchie6 hr
Feb 19, 4:28 PM CSTFlash Flood WarningJANBolivar, Washington6 hr
Feb 19, 4:28 PM CSTFlash Flood WarningJANYalobusha6 hr
Feb 19, 5:57 PM CSTFlash Flood WarningJANLauderdale7 hr
Feb 19, 5:57 PM CSTFlash Flood WarningJANNoxubee7 hr

Nearby

Severe Thunderstorm Warnings in Mississippi, 1991Every severe thunderstorm warning in 1991

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.