Alert archive / Mississippi / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 35, NWS Jackson, MS

February 15, 1990Lauderdale County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Feb 15, 1990, 10:28 AM CST for Lauderdale County, Mississippi. It was in force for 47 min.

The area

The counties it named.

The facts

Issued
Feb 15, 1990, 10:28 AM CST (16:28 UTC)
Expired
Feb 15, 1990, 11:15 AM CST
In force
47 min
Issued by
NWS Jackson, MS
Area
Whole counties

County Lauderdale 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 12:00Z, 4.5 hours before the alert went out and 134 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 1990-02-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1189 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 1990-02-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 157 square meters per square second.193958Sfc1 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
1189 J/kg
Mixed-layer CIN
-9 J/kg
Mixed-layer LCL
728 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
157 m²/s²
0-3 km storm-relative helicity
178 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.4

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMEI 151630
SVRMEI
MSC075-151715-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MERIDIAN MS
1028 AM CST THU FEB 15 1990
 
THE NATIONAL WEATHER SERVICE IN MERIDIAN HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1115 AM CST
FOR PEOPLE IN THE FOLLOWING COUNTY...
 
IN EAST CENTRAL MISSISSIPPI
          ...LAUDERDALE
 
AT 1027 AM CST RADAR INDICATED A SEVERE THUNDERSTORM 10 MILES
WEST OF MERIDIAN MISSISSIPPI MOVING NORTHEAST AT 35 MPH.
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS.  HEAVY RAINS FLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.

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 15, 6:10 AM CST, 4 hours 18 minutes before
MSZALL-161200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
610 AM CST THU FEB 15 1990

...STORMY WEATHER EXPECTED ACROSS ALL OF MISSISSIPPI TODAY AND
TONIGHT...

VERY MOIST UNSTABLE AIR COMBINED WITH AN APPROACHING COLD FRONT WILL
RESULT IN NUMEROUS THUNDERSTORMS ACROSS MISSISSIPPI TODAY AND TONIGHT.
THE THREAT OF THUNDERSTORMS WILL CONTINUE UNTIL AROUND MIDNIGHT ALONG
THE MISSISSIPPI RIVER AND UNTIL THE MORNING HOURS OF FRIDAY ACROSS THE
EASTERN COUNTIES.

THESE THUNDERSTORMS COULD PRODUCE IN EXCESS OF TWO INCHES OF RAIN OVER
MOST OF THE STATE.  HOWEVER...THE GREATEST THREAT OF HEAVY RAIN WILL BE
GENERALLY ALONG AND NORTH OF A HOLLANDALE TO COLUMBUS LINE WHERE A FLASH
FLOOD WATCH IS IN EFFECT TODAY AND TONIGHT.

IN ADDITION TO THE HEAVY RAINS...SEVERE THUNDERSTORMS ARE POSSIBLE OVER
ALL OF THE STATE TODAY AND MOST OF TONIGHT.  DUE TO THIS THREAT...IT IS
VERY LIKELY THAT SEVERE WEATHER WATCHES AND WARNINGS WILL BE ISSUED
LATER TODAY AND TONIGHT.

ALL INTERESTS IN MISSISSIPPI SHOULD STAY ABREAST OF DEVELOPING WEATHER
CONDITIONS TODAY AND TONIGHT.
Local storm report, Feb 15, 9:54 AM CST, 34 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MERIDIAN MS
0950 AM CST THU FEB 15 1990

0925 CST...UNION FIRE CHIEF REPORTED TREES AND POWER LINES DOWN...
           MARBLE SIZE HAIL...ROOF OFF BUSINESS IN AND AROUND
           UNION IN NEWTON COUNTY MISSISSIPPI.

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 15, 9:27 AM CSTSevere Thunderstorm WarningJANNeshoba33 min
Feb 15, 10:11 AM CSTSevere Thunderstorm WarningJANNewton34 min
Feb 15, 10:25 AM CSTSevere Thunderstorm WarningJANJasper35 min
Feb 15, 10:42 AM CSTSevere Thunderstorm WarningJANKemper33 min
Feb 15, 10:42 AM CSTSevere Thunderstorm WarningJANHinds, Warren48 min
Feb 15, 11:03 AM CSTSevere Thunderstorm WarningJANJasper27 min
Feb 15, 11:15 AM CSTSevere Thunderstorm WarningJANClarke, Lauderdale60 min
Feb 15, 12:21 PM CSTFlash Flood WarningJANLauderdale2 hr
Feb 15, 12:27 PM CSTSevere Thunderstorm WarningJANJasper33 min
Feb 15, 12:40 PM CSTSevere Thunderstorm WarningJANNewton35 min
Feb 15, 12:45 PM CSTSevere Thunderstorm WarningJANSimpson, Smith45 min
Feb 15, 12:52 PM CSTTornado WarningJANLauderdale38 min
Feb 15, 12:55 PM CSTTornado WarningJANAmite50 min
Feb 15, 12:59 PM CSTTornado WarningJANSimpson, Smith31 min
Feb 15, 1:11 PM CSTTornado WarningJANJefferson Davis34 min
Feb 15, 1:21 PM CSTTornado WarningJANScott24 min
Feb 15, 1:24 PM CSTTornado WarningJANJasper, Newton51 min
Feb 15, 1:28 PM CSTTornado WarningJANLauderdale32 min
Feb 15, 1:33 PM CSTTornado WarningJANCovington, Smith27 min
Feb 15, 1:42 PM CSTTornado WarningJANKemper48 min
Feb 15, 1:47 PM CSTTornado WarningJANPike18 min
Feb 15, 1:59 PM CSTTornado WarningJANSmith31 min
Feb 15, 2:01 PM CSTTornado WarningJANLauderdale44 min
Feb 15, 2:05 PM CSTTornado WarningJANLawrence, Lincoln25 min
Feb 15, 2:26 PM CSTTornado WarningJANJasper49 min
Feb 15, 2:37 PM CSTSevere Thunderstorm WarningJANSmith38 min
Feb 15, 2:37 PM CSTSevere Thunderstorm WarningJANCovington23 min
Feb 15, 2:45 PM CSTFlash Flood WarningJANSmith3 hr
Feb 15, 2:45 PM CSTFlash Flood WarningJANCovington, Jefferson Davis, Lawrence, Simpson3 hr
Feb 15, 2:49 PM CSTFlash Flood WarningJANLauderdale6 hr
Feb 15, 2:51 PM CSTTornado WarningJANLauderdale54 min
Feb 15, 3:41 PM CSTTornado WarningJANJasper49 min
Feb 15, 3:59 PM CSTSevere Thunderstorm WarningJANLauderdale46 min
Feb 15, 4:16 PM CSTSevere Thunderstorm WarningJANAdams, Jefferson29 min
Feb 15, 4:29 PM CSTSevere Thunderstorm WarningJANBolivar31 min
Feb 15, 4:51 PM CSTSevere Thunderstorm WarningJANHinds39 min
Feb 15, 5:03 PM CSTFlash Flood WarningJANJasper6 hr
Feb 15, 5:48 PM CSTSevere Thunderstorm WarningJANWashington27 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.