Alert archive / Mississippi / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 337, NWS Memphis, TN

July 9, 1998Lowndes County, Mississippi

NWS Memphis, TN issued this severe thunderstorm warning at Jul 9, 1998, 3:03 PM CDT for Lowndes County, Mississippi. It was in force for 62 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
Jul 9, 1998, 3:03 PM CDT (20:03 UTC)
Expired
Jul 9, 1998, 4:05 PM CDT
In force
62 min
Issued by
NWS Memphis, TN
Area
Whole counties

County Lowndes County, MS

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 8.1 hours before the alert went out and 158 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, Birmingham, AL at 12:00Z on 1998-07-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2394 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, Birmingham, AL at 12:00Z on 1998-07-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -17 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
2394 J/kg
Mixed-layer CIN
-46 J/kg
Mixed-layer LCL
772 m above ground
0-6 km bulk shear
2 kt
0-1 km storm-relative helicity
-17 m²/s²
0-3 km storm-relative helicity
-7 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.

083 
WUUS1 KMEM 092002 RRA
SVRMEM
MSC087-092105-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MEMPHIS TN
303 PM CDT THU JUL 9 1998


THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  LOWNDES COUNTY IN NORTHEASTERN MISSISSIPPI

* UNTIL 405 PM CDT

* AT 301 PM CDT... DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
  WITH DAMAGING WINDS NEAR WEST POINT MOVING SOUTHEAST AT 20 MPH.

* THE SEVERE THUNDERSTORMS WILL BE NEAR...
  COLUMBUS BY 320 PM CDT

STORM SPOTTERS REPORTED 70 MPH WINDS IN WEST POINT WITH THIS STORM.

.WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING. DO NOT STAND BY WINDOWS. DO NOT USE TELEPHONES OR
ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM HAS
PASSED. MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.



&

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, Jul 9, 1:40 PM CDT, 1 hour 23 minutes before
ARZ008-009-017-018-026>028-035-036-048-049-058-MOZ113-115-MSZ001>017-
TNZ001>004-019>021-048>054-088>092-100625-

SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MEMPHIS TN
140 PM CDT THU JUL 9 1998

THIS OUTLOOK COVERS THE COUNTY WARNING AREA OF THE NATIONAL WEATHER
SERVICE FORECAST OFFICE IN MEMPHIS TENNESSEE..INCLUDING WEST
TENNESSEE...NORTH MISSISSIPPI..EAST ARKANSAS..AND THE MISSOURI
BOOTHEEL.

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS IN EAST
ARKANSAS..WEST TENNESSEE..THE MISSOURI BOOTHEEL..AND NORTH
MISSISSIPPI.

A COMPLEX OF THUNDERSTORMS WORKING ITS WAY OUT OF KANSAS OVERNIGHT
PRODUCED A FRONTAL BOUNDARY IN NORTHWEST ARKANSAS EARLY THIS
MORNING. THIS BOUNDARY IS WORKING ITS WAY EAST THROUGH ARKANSAS AT
THIS TIME. THE AIR OVER ARKANSAS IS VERY MOIST AND AFTERNOON HEATING
WILL STRENGTHEN THESE STORMS. OVER THE PAST TWO HOURS STORMS
DEVELOPED FROM NORTH CENTRAL ARKANSAS DOWN TO THE HOT SPRINGS AR
AREA. THE STAGE IS SET FOR ISOLATED SEVERE THUNDERSTORMS.

DAMAGING STRAIGHT-LINE WINDS AND HAIL WILL BE THE MAIN THREATS FROM
3 PM TO MIDNIGHT.

STORM SPOTTER GROUPS AND EMERGENCY MANAGEMENT PERSONNEL SHOULD BE
PREPARED FOR POSSIBLE ACTIVATION THIS AFTERNOON INTO THIS EVENING.
MONITOR NOAA WEATHER RADIO..COMMERCIAL RADIO..TV AND CABLE
TELEVISION OUTLETS FOR THE LATEST FORECASTS AND INFORMATION.
Special weather statement, Jul 9, 1:40 PM CDT, 1 hour 23 minutes before
ARZ008-009-017-018-026>028-035-036-048-049-058-MOZ113-115-MSZ001>017-
TNZ001>004-019>021-048>054-088>092-100625-

SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MEMPHIS TN
140 PM CDT THU JUL 9 1998

THIS OUTLOOK COVERS THE COUNTY WARNING AREA OF THE NATIONAL WEATHER
SERVICE FORECAST OFFICE IN MEMPHIS TENNESSEE..INCLUDING WEST
TENNESSEE...NORTH MISSISSIPPI..EAST ARKANSAS..AND THE MISSOURI
BOOTHEEL.

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS IN EAST
ARKANSAS..WEST TENNESSEE..THE MISSOURI BOOTHEEL..AND NORTH
MISSISSIPPI.

A COMPLEX OF THUNDERSTORMS WORKING ITS WAY OUT OF KANSAS OVERNIGHT
PRODUCED A FRONTAL BOUNDARY IN NORTHWEST ARKANSAS EARLY THIS
MORNING. THIS BOUNDARY IS WORKING ITS WAY EAST THROUGH ARKANSAS AT
THIS TIME. THE AIR OVER ARKANSAS IS VERY MOIST AND AFTERNOON HEATING
WILL STRENGTHEN THESE STORMS. OVER THE PAST TWO HOURS STORMS
DEVELOPED FROM NORTH CENTRAL ARKANSAS DOWN TO THE HOT SPRINGS AR
AREA. THE STAGE IS SET FOR ISOLATED SEVERE THUNDERSTORMS.

DAMAGING STRAIGHT-LINE WINDS AND HAIL WILL BE THE MAIN THREATS FROM
3 PM TO MIDNIGHT.

STORM SPOTTER GROUPS AND EMERGENCY MANAGEMENT PERSONNEL SHOULD BE
PREPARED FOR POSSIBLE ACTIVATION THIS AFTERNOON INTO THIS EVENING.
MONITOR NOAA WEATHER RADIO..COMMERCIAL RADIO..TV AND CABLE
TELEVISION OUTLETS FOR THE LATEST FORECASTS AND INFORMATION.

The office that day

Everything else NWS Memphis, TN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 9, 11:52 AM CDTSevere Thunderstorm WarningMEGItawamba63 min
Jul 9, 2:37 PM CDTSevere Thunderstorm WarningMEGClay38 min
Jul 9, 3:11 PM CDTSevere Thunderstorm WarningMEGClay64 min
Jul 9, 3:15 PM CDTSevere Thunderstorm WarningMEGChickasaw35 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 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.