Alert archive / Mississippi / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 19, NWS Jackson, MS

February 9, 1990Issaquena County, Sharkey County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Feb 9, 1990, 9:00 PM CST for Issaquena County, Sharkey County, Mississippi. It was in force for 60 min.

The area

The counties it named.

The facts

Issued
Feb 9, 1990, 9:00 PM CST (03:00 UTC)
Expired
Feb 9, 1990, 10:00 PM CST
In force
60 min
Issued by
NWS Jackson, MS
Area
Whole counties

Counties Issaquena County, MS, Sharkey County, MS

The radar

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

The nearest sounding before it

Jackson, MS (KJAN), launched 00:00Z, 3.0 hours before the alert went out and 94 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 1990-02-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 984 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 00:00Z on 1990-02-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 212 square meters per square second.19395878Sfc1 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
984 J/kg
Mixed-layer CIN
-11 J/kg
Mixed-layer LCL
784 m above ground
0-6 km bulk shear
55 kt
0-1 km storm-relative helicity
212 m²/s²
0-3 km storm-relative helicity
275 m²/s²
Significant tornado parameter
1.4
Supercell composite
6.4

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KJAN 100300
SVRJAN
MSC055-125-100400-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSON MS
900 PM CST FRI FEB 9 1990
 
THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1000 PM CST
FOR PEOPLE IN THE FOLLOWING COUNTIES...
 
IN WEST CENTRAL MISSISSIPPI
          ...ISSAQUENA...SHARKEY
 
A SEVERE THUNDERSTORM WAS LOCATED JUST NORTH OF LAKE PROVIDENCE
LOUISIANA AT 900 PM AND WILL MOVE INTO ISSAQUENA AND SHARKEY COUNTIES
WITHIN THE NEXT HOUR. THIS THUNDERSTORM PRODUCED DAMAGING WINDS AND
LARGE HAIL AS IT MOVED THROUGH NORTHEAST LOUISIANA WITHIN THE PAST HOUR. 
 
 
A TORNADO WATCH IS ALSO IN EFFECT.  REMEMBER SEVERE THUNDERSTORMS
CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING.  REMAIN
CALM BUT BE ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS.
<
 
SEVERE THUNDERSTORMS PRODUCE WIND IN EXCESS OF 55 MPH...LARGE
HAIL...DEADLY LIGHTNING...AND VERYA HEAVY RAIN.  MOVE TO AN
INTERIOR ROOM 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 9, 4:07 PM CST, 4 hours 53 minutes before
MSZ001-002-004>006-092230-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
400 PM CST FRI FEB 9 1990

TORNADO WATCH NUMBER 21 REMAINS IN EFFECT FOR NORTH MISSISSIPPI ALONG
AND NORTH OF A LINE FROM GREENVILLE TO NEW ALBANY UNTIL 900 PM CDT THIS
FRIDAY AFTERNOON AND EVENING.

AT 355 PM A LINE OF THUNDERSTORMS...SOME SEVERE...EXTENDED ACROSS
ARKANSAS FROM NEAR FORREST CITY IN EAST CENTRAL ARKANSAS TO THE SOUTH
NEAR EL DORADO ARKANSAS. SOME OF THE STRONGER STORMS IN THIS LINE HAVE
PRODUCED DAMAGING WINDS THIS AFTERNOON.

THIS LINE OF THUNDERSTORMS IS MOVING TO THE EAST AT 25 MPH...AND WILL
MOVE INTO THE MOIST AND UNSTABLE AIR OVER NORTHWEST MISSISSIPPI WITHIN
THE NEXT SEVERAL HOURS.

PERSONS IN THE TORNADO WATCH AREA IN NORTH MISSISSIPPI SHOULD REMAIN ON
THE ALERT FOR THREATENING WEATHER THIS AFTERNOON AND EVENING.
Special weather statement, Feb 9, 5:15 PM CST, 3 hours 45 minutes before
MSZ001>002-004-005-006-100000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
515 PM CST FRI FEB 9 1990

TORNADO WATCH NUMBER 21 REMAINS IN EFFECT FOR NORTH MISSISSIPPI ALONG
AND NORTH OF A LINE FROM GREENVILLE TO NEW ALBANY UNTIL 900 PM CDT THIS
FRIDAY AFTERNOON AND EVENING.

AT 500 PM A LINE OF THUNDERSTORMS EXTENDED FROM EXTREME NORTHWEST
MISSISSIPPI TO SOUTHCENTRAL ARKANSAS. SOME OF THESE THUNDERSTORMS ARE
QUITE STRONG AND HAVE PRODUCED DAMAGING WINDS AND LARGE HAIL EARLIER
THIS AFTERNOON IN ARKANSAS.

THIS LINE OF THUNDERSTORMS IS MOVING TO THE SOUTHEAST AT 20 MPH AND
WILL CONTINUE MOVING THROUGH NORTH AND WEST MISSISSIPPI DURING THE
NEXT SEVERAL HOURS.

PERSONS IN THE TORNADO WATCH AREA IN NORTH MISSISSIPPI SHOULD REMAIN ON
THE ALERT FOR THREATENING WEATHER THIS AFTERNOON AND EVENING.
Special weather statement, Feb 9, 7:17 PM CST, 1 hour 43 minutes before
MSZ009-012-ALZ008-013-100215-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MERIDIAN MS
715 PM CST FRI JAN 9 1990

...TORNADO WATCH NUMBER 23 WHICH INCLUDES WINSTON...NOXUBEE...
NESHOBA AND KEMPER COUNTIES IN EAST CENTRAL MISSISSIPPI IN
EFFECT UNTIL MIDNIGHT.

AT 715 PM CST MERIDIAN RADAR INDICATED A LINE OF THUNDERSTORMS
EXTENDING FROM NEAR TUPELO TO NEAR GREENVILLE MISSISSIPPI. THE
LINE OF THUNDERSTORMS WAS MOVING SOUTHEAST AT 20 MPH.

IF THE LINE OF THUNDERSTORMS CONTINUES ITS PRESENT MOVEMENT
IT WILL ENTER THE NOTHERN PORTION OF EAST CENTRAL MISSISSIPPI
WITHIN THE NEXT TWO TO THREE HOURS.

ALL PERSONS IN AND CLOSE TO THE WATCH AREA SHOULD REMAIN VERY
ALERT FOR THREATENING WEATHER AND LISTEN FOR LATER STATEMENTS
AND POSSIBLE WARNINGS. <<
Special weather statement, Feb 9, 8:32 PM CST, 28 minutes before
MSZ009-012-ALZ008-013-100320-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MERIDIAN MS
830 PM CST FRI FEB 9 1990

...TORNADO WATCH NUMBER 23 REMAINS IN EFFECT UNTIL MIDNIGHT...

AT 830 PM CST MERIDIAN RADAR INDICATED A 10 MILE WIDE LINE OF
THUNDERSTORMS EXTENDED FROM 10 MILES SOUTHWEST OF LOUISVILLE
TO 10 MILES NORTHEAST OF COLUMBUS MISSISSIPPI.

A LARGE AREA OF SCATTERED THUNDERSTORMS WAS INDICATED
ALONG AND NORTH OF A LINE FROM TUPELO TO YAZOO CITY MISSISSIPPI.

THE THUNDERSTORMS WERE MOVING TOWARD THE NORTHEAST AT 35 MPH.

PERSONS IN AND CLOSE TO THE WATCH AREA SHOULD REMAIN ALERT FOR
THREATENING WEATHER AND LISTEN FOR LATER STATEMENTS AND
POSSIBLE WARNINGS.
Special weather statement, Feb 9, 8:48 PM CST, 12 minutes before
MSZALL-100235-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE JACKSON MS
830 PM CST FRI FEB 9 1990

...TORNADO WATCH IN EFFECT FOR PORTIONS OF WESTERN AND NORTHERN
MISSISSIPPI UNTIL MIDNIGHT...
...FLASH FLOOD WATCH REMAINS IN EFFECT FOR ALONG AND NORTH A
HATTIESBURG TO WAYNESBORO LINE FOR TONIGHT...

AT 825 PM...A LINE OF STRONG THUNDERSTORMS EXTENDED ACROSS THE DELTA
FROM GREENWOOD TO ROLLING FORK...WITH THE STRONGEST STORMS LOCATED
NEAR HOLLANDALE AND NEAR ITTA BENA. THESE STORMS ARE PRODUCING VERY
HEAVY RAINFALL ALONG WITH FREQUENT CLOUD TO GROUNG LIGHTNING...GUSTY
WINDS AND POSSIBLE HAIL. THIS LINE WAS MOVING TO THE EAST SOUTHEAST AT
30 MILES AN HOUR...WHILE THE INDIVIDUAL THUNDERSTORMS WERE MOVING
NORTHEAST AT 40 MILES AN HOUR.

IN ADDITION...MORE INTENSE THUNDERSTORMS WERE OCCURRING OVER NORTHEAST
LOUISIANA...THESE STORMS HAVE ALREADY PRODUCED MARBLE TO ONE INCH SIZE
HAIL AND STRONG GUSTY WINDS JUST NORTHEAST OF MONROE NEAR BASTROP.
THESE THUNDERSTORMS ARE MOVING TO THE NORTHEAST AT 40 MILES AN HOUR
AND SHOULD BE MOVING INTO MISSISSIPPI AROUND THE GREENVILLE AREA
DURING THE NEXT HOUR.

PERSONS IN THE WATCH AREA SHOULD REMAIN ALERT6 AND LISTEN FOR FURTHER
STATEMENTS.

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 9, 11:19 PM CSTSevere Thunderstorm WarningJANHinds, Rankin56 min
Feb 10, 12:05 AM CSTSevere Thunderstorm WarningJANWinston25 min
Feb 10, 12:19 AM CSTSevere Thunderstorm WarningJANNeshoba41 min
Feb 10, 12:25 AM CSTSevere Thunderstorm WarningJANNewton50 min
Feb 10, 12:35 AM CSTSevere Thunderstorm WarningJANJasper40 min
Feb 10, 12:44 AM CSTSevere Thunderstorm WarningJANKemper46 min
Feb 10, 12:49 AM CSTSevere Thunderstorm WarningJANLauderdale41 min
Feb 10, 1:05 AM CSTSevere Thunderstorm WarningJANClarke40 min
Feb 10, 1:07 AM CSTSevere Thunderstorm WarningJANJones53 min
Feb 10, 1:32 AM CSTSevere Thunderstorm WarningJANWayne43 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 1990Every severe thunderstorm warning in 1990

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.