Alert archive / Mississippi / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 142, NWS Jackson, MS

June 18, 1990Kemper County, Noxubee County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Jun 18, 1990, 4:14 PM CDT for Kemper County, Noxubee County, Mississippi. It was in force for 46 min. 2 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Jun 18, 1990, 4:14 PM CDT (21:14 UTC)
Expired
Jun 18, 1990, 5:00 PM CDT
In force
46 min
Issued by
NWS Jackson, MS
Area
Whole counties

Counties Kemper County, MS, Noxubee County, MS

The radar

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

What was reported inside it

TimeReportWhereRemark
Jun 18, 4:20 PM CDTHail 1.75Noxubee, MS
Jun 18, 4:50 PM CDTThunderstorm Wind 0Kemper, MS

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Centreville/Bibb, AL (KCKL), launched 12:00Z, 9.2 hours before the alert went out and 131 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, Centreville/Bibb, AL at 12:00Z on 1990-06-18Temperature 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 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Centreville/Bibb, AL at 12:00Z on 1990-06-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 2 square meters per square second.1939Sfc1 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
0 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
2 m²/s²
0-3 km storm-relative helicity
3 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 KMEI 182115
SVRMEI
MSC069-103-182200-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MERIDIAN MS
414 PM CDT MON JUN 18 1990
 
THE NATIONAL WEATHER SERVICE IN MERIDIAN HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  500 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN EAST CENTRAL MISSISSIPPI
 
   ...KEMPER COUNTY...SOUTHEASTERN NOXUBEE COUNTY
 
AT 410PM CDT MERIDIAN RADAR INDICATED A SEVERE THUNDERSTORM 10 MILES
SOUTHEAST OF MACON MISSISSIPPI. THIS THUNDERSTORM WAS MOVING TO THE
SOUTH AT 15 MPH.
 
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROT,ECTION 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, Jun 18, 2:30 PM CDT, 1 hour 44 minutes before
MSZALL-182300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
230 PM CDT MON JUN 18 1990

...HEAT INDEX 110 TO 120 CENTRAL AND SOUTH THIS AFTERNOON AND TUESDAY...

HOT AND HUMID WEATHER CONTINUED ACROSS MISSISSIPPI THIS AFTERNOON.
WORST CONDITIONS HAVE BEEN IN THE SOUTHERN AND CENTRAL COUNTIES WHERE
A FEW PLACES HAVE REPORTED HEAT INDICES BETWEEN 110 AND 120.

MORE HOT WEATHER IS EXPECTED STATEWIDE TUESDAY.  ALTHOUGH A WEAK TROUGH
OF LOW PRESSURE WILL BE MOVING THROUGH THE STATE TONIGHT...IT APPEARS
THAT SLIGHTLY DRIER AIR WILL BE FILTERING INTO THE NORTHERN COUNTIES
TUESDAY.  HOWEVER...THE SOUTHERN AND CENTRAL COUNTIES MAY AGAIN SEE
HEAT INDICES FROM 110 TO 120 AGAIN TOMORROW.

PEOPLE WHO MUST BE OUTSIDE FOR PROLONGED PERIODS OF TIME SHOULD TAKE
NECESSARY PRECAUTIONS TO GUARD AGAINST THE OPPRESSIVE HEAT.
Special weather statement, Jun 18, 4:10 PM CDT, 4 minutes before
MSZ002-006-007-182200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
405 PM CDT MON JUN 18 1990

...STRONG THUNDERSTORMS MOVING THROUGH THE UPPER DELTA...

AT 400 PM...RADAR INDICATED A LARGE VERY STRONG THUNDERSTORM IN
SOUTHERN QUITMAN COUNTY MOVING SOUTH AT 20 MILES AN HOUR TOWARD
TALLAHATCHIE COUNTY. THIS STORM SHOULD MOVE TO THE EAST OF TUTWILER
AND SUMNER INTO CENTRAL TALLAHATCHIE COUNTY DURING THE NEXT 30 MILES.

VERY HEAVY RAIN...GUSTY WINDS...FREQUENT LIGHTNING STRIKES AND POSSIBLE
HAIL WILL ACCOMPANY THIS STORM. PERSONS WHO ARE OUTDOORS SHOULD MOVE TO
A PLACE OF SAFETY AND BOATERS ON AREA LAKES WILL NEED TO TAKE COVER AS
THESE THUNDERSTORMS APPROACH.

REMEMBE"R...LIGHTNING IS ONE OF THE DEADLIEST KILLERS FROM SUMMERTIME
THUNDERSTORMS. CONTINUED THUNDERSTORM DEVELOPMENT IS LIKELY ACROSS NORTH
CENTRAL MISSISSIPPI FROM GREENWOOD TO GREENVILLE TO COLUMBUS UNTIL SUNSET.

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 18, 4:46 PM CDTSevere Thunderstorm WarningJANLeflore, Sunflower44 min
Jun 18, 5:08 PM CDTSevere Thunderstorm WarningJANLauderdale52 min
Jun 18, 5:46 PM CDTSevere Thunderstorm WarningJANNeshoba44 min
Jun 18, 6:07 PM CDTSevere Thunderstorm WarningJANWinston53 min
Jun 18, 6:40 PM CDTSevere Thunderstorm WarningJANJasper50 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.