Alert archive / Tennessee / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 90, NWS Memphis, TN
NWS Memphis, TN issued this severe thunderstorm warning at Apr 14, 1998, 12:52 AM CDT for Gibson County, Tennessee. It was in force for 48 min. 1 report 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
- Apr 14, 1998, 12:52 AM CDT (05:52 UTC)
- Expired
- Apr 14, 1998, 1:40 AM CDT
- In force
- 48 min
- Issued by
- NWS Memphis, TN
- Area
- Whole counties
County Gibson County, TN
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 14, 1:10 AM CDT | Hail 0.75 | Trenton, TN |
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.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 13, 10:00 PM CDT | Tornado Watch | SPC | 4 hr |
The nearest sounding before it
Little Rock, AR (KLZK), launched 00:00Z, 5.9 hours before the alert went out and 159 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
- 652 J/kg
- Mixed-layer CIN
- -7 J/kg
- Mixed-layer LCL
- 898 m above ground
- 0-6 km bulk shear
- 62 kt
- 0-1 km storm-relative helicity
- 207 m²/s²
- 0-3 km storm-relative helicity
- 223 m²/s²
- Significant tornado parameter
- 0.8
- Supercell composite
- 3.2
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
Local storm report, Apr 13, 7:45 PM CDT, 5 hours 7 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEMPHIS TENNESSEE
745 PM CDT MON APR 13 1998
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0730 PM PALATKA AR 1.75 INCH HAIL
04/13/98 CLAY HIGHWAY PATROL REPORTED
GOLFBALL SIZE HAILThe office that day
Everything else NWS Memphis, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 13, 9:59 PM CDT | Severe Thunderstorm Warning | MEG | Obion | 46 min |
| Apr 13, 11:00 PM CDT | Severe Thunderstorm Warning | MEG | Lake | 30 min |
| Apr 13, 11:16 PM CDT | Tornado Warning | MEG | Lake, Obion | 59 min |
| Apr 14, 12:10 AM CDT | Severe Thunderstorm Warning | MEG | Weakley | 45 min |
| Apr 14, 12:31 AM CDT | Severe Thunderstorm Warning | MEG | Carroll, Henry | 64 min |
| Apr 14, 1:05 AM CDT | Severe Thunderstorm Warning | MEG | Shelby | 60 min |
| Apr 13, 7:02 PM CDT | Tornado Warning | MEG | Clay | 58 min |
| Apr 13, 7:56 PM CDT | Tornado Warning | MEG | Clay | 24 min |
| Apr 13, 10:02 PM CDT | Severe Thunderstorm Warning | MEG | Lawrence | 28 min |
| Apr 13, 10:15 PM CDT | Severe Thunderstorm Warning | MEG | Greene | 45 min |
| Apr 13, 11:25 PM CDT | Severe Thunderstorm Warning | MEG | Cross | 50 min |
| Apr 13, 11:30 PM CDT | Severe Thunderstorm Warning | MEG | Mississippi | 50 min |
| Apr 14, 12:22 AM CDT | Severe Thunderstorm Warning | MEG | Cross | 48 min |
| Apr 14, 12:48 AM CDT | Severe Thunderstorm Warning | MEG | Crittenden | 37 min |
Nearby
Severe Thunderstorm Warnings in Tennessee, 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.