Alert archive / Mississippi / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 339, NWS Memphis, TN
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.
- 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
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.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 9, 11:52 AM CDT | Severe Thunderstorm Warning | MEG | Itawamba | 63 min |
| Jul 9, 2:37 PM CDT | Severe Thunderstorm Warning | MEG | Clay | 38 min |
| Jul 9, 3:03 PM CDT | Severe Thunderstorm Warning | MEG | Lowndes | 62 min |
| Jul 9, 3:11 PM CDT | Severe Thunderstorm Warning | MEG | Clay | 64 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.