Alert archive / Mississippi / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 339, NWS Memphis, TN

July 9, 1998Chickasaw County, Mississippi

NWS Memphis, TN issued this severe thunderstorm warning at Jul 9, 1998, 3:15 PM CDT for Chickasaw County, Mississippi. It was in force for 35 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, 3:15 PM CDT (20:15 UTC)
Expired
Jul 9, 1998, 3:50 PM CDT
In force
35 min
Issued by
NWS Memphis, TN
Area
Whole counties

County Chickasaw County, MS

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 8.3 hours before the alert went out and 207 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 1998-07-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 837 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 1998-07-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -6 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
837 J/kg
Mixed-layer CIN
-139 J/kg
Mixed-layer LCL
1067 m above ground
0-6 km bulk shear
5 kt
0-1 km storm-relative helicity
-6 m²/s²
0-3 km storm-relative helicity
51 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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 35 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 35 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, 3:03 PM CDTSevere Thunderstorm WarningMEGLowndes62 min
Jul 9, 3:11 PM CDTSevere Thunderstorm WarningMEGClay64 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.