Alert archive / Mississippi / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 170, NWS Jackson, MS
NWS Jackson, MS issued this severe thunderstorm warning at Apr 17, 1998, 8:04 PM CDT for Covington County, Forrest County, Jones County, Mississippi. It was in force for 51 min. 4 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
- Apr 17, 1998, 8:04 PM CDT (01:04 UTC)
- Expired
- Apr 17, 1998, 8:55 PM CDT
- In force
- 51 min
- Issued by
- NWS Jackson, MS
- Area
- Whole counties
Counties Covington County, MS, Forrest County, MS, Jones County, MS
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 17, 8:13 PM CDT | Hail 0.75 | Petal, MS | |
| Apr 17, 8:15 PM CDT | Hail 0.88 | Hattiesburg, MS | |
| Apr 17, 8:19 PM CDT | Hail 1.75 | Dixie Pine, MS | |
| Apr 17, 8:32 PM CDT | Hail 1 | Ellisville, 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.
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 17, 5:30 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Jackson, MS (KJAN), launched 00:00Z, 1.1 hours before the alert went out and 117 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 665 m above ground
- 0-6 km bulk shear
- 84 kt
- 0-1 km storm-relative helicity
- 183 m²/s²
- 0-3 km storm-relative helicity
- 413 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
Local storm report, Apr 17, 6:08 PM CDT, 1 hour 56 minutes before
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</html>Local storm report, Apr 17, 6:08 PM CDT, 1 hour 56 minutes before
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</html>Local storm report, Apr 17, 7:18 PM CDT, 46 minutes before
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<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
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</html>The office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 17, 7:12 PM CDT | Severe Thunderstorm Warning | JAN | Forrest | 33 min |
| Apr 17, 7:31 PM CDT | Tornado Warning | JAN | Marion | 49 min |
| Apr 17, 7:51 PM CDT | Severe Thunderstorm Warning | JAN | Lamar | 44 min |
| Apr 17, 8:41 PM CDT | Severe Thunderstorm Warning | JAN | Clarke, Jasper | 49 min |
| Apr 17, 9:56 PM CDT | Severe Thunderstorm Warning | JAN | Jefferson Davis, Lawrence | 49 min |
| Apr 17, 10:19 PM CDT | Severe Thunderstorm Warning | JAN | Simpson, Smith | 36 min |
| Apr 17, 10:45 PM CDT | Severe Thunderstorm Warning | JAN | Franklin, Lincoln | 50 min |
| Apr 17, 10:54 PM CDT | Severe Thunderstorm Warning | JAN | Jasper | 36 min |
| Apr 17, 11:30 PM CDT | Severe Thunderstorm Warning | JAN | Clarke, Lauderdale | 50 min |
| Apr 18, 12:11 AM CDT | Severe Thunderstorm Warning | JAN | Smith | 34 min |
| Apr 18, 12:38 AM CDT | Severe Thunderstorm Warning | JAN | Jasper, Newton | 32 min |
| Apr 18, 1:07 AM CDT | Severe Thunderstorm Warning | JAN | Lauderdale | 48 min |
| Apr 18, 6:06 AM CDT | Severe Thunderstorm Warning | JAN | Lincoln | 49 min |
| Apr 18, 6:24 AM CDT | Severe Thunderstorm Warning | JAN | Rankin, Simpson | 46 min |
| Apr 18, 7:13 AM CDT | Severe Thunderstorm Warning | JAN | Rankin, Simpson | 47 min |
| Apr 18, 7:35 AM CDT | Severe Thunderstorm Warning | JAN | Smith | 35 min |
| Apr 18, 7:56 AM CDT | Severe Thunderstorm Warning | JAN | Copiah | 34 min |
| Apr 18, 8:07 AM CDT | Severe Thunderstorm Warning | JAN | Simpson | 33 min |
| Apr 18, 8:09 AM CDT | Severe Thunderstorm Warning | JAN | Newton | 36 min |
| Apr 18, 8:21 AM CDT | Severe Thunderstorm Warning | JAN | Rankin | 34 min |
| Apr 18, 8:32 AM CDT | Severe Thunderstorm Warning | JAN | Lauderdale | 33 min |
| Apr 18, 8:44 AM CDT | Severe Thunderstorm Warning | JAN | Scott, Smith | 51 min |
| Apr 18, 8:47 AM CDT | Severe Thunderstorm Warning | JAN | Copiah | 33 min |
| Apr 18, 8:51 AM CDT | Severe Thunderstorm Warning | JAN | Franklin | 34 min |
| Apr 18, 8:52 AM CDT | Severe Thunderstorm Warning | JAN | Kemper | 33 min |
| Apr 18, 9:05 AM CDT | Severe Thunderstorm Warning | JAN | Hinds | 20 min |
| Apr 18, 9:20 AM CDT | Severe Thunderstorm Warning | JAN | Rankin | 50 min |
| Apr 18, 10:03 AM CDT | Severe Thunderstorm Warning | JAN | Copiah, Rankin, Simpson | 47 min |
| Apr 18, 12:20 PM CDT | Severe Thunderstorm Warning | JAN | Jefferson Davis, Simpson | 45 min |
| Apr 18, 2:11 PM CDT | Severe Thunderstorm Warning | JAN | Forrest | 60 min |
| Apr 18, 3:28 PM CDT | Severe Thunderstorm Warning | JAN | Jefferson Davis, Lawrence | 32 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.