Alert archive / Mississippi / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 1, NWS Jackson, MS
NWS Jackson, MS issued this severe thunderstorm warning at Jan 7, 1998, 4:00 AM CST for Forrest County, Mississippi. It was in force for 30 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
- Jan 7, 1998, 4:00 AM CST (10:00 UTC)
- Expired
- Jan 7, 1998, 4:30 AM CST
- In force
- 30 min
- Issued by
- NWS Jackson, MS
- Area
- Whole counties
County Forrest County, MS
The radar
The Mobile radar (KMOB), 112 km from the middle of the area, began a volume at 10:03 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jan 7, 4:15 AM CST | Thunderstorm Wind | Hattiesburg, MS | Several trees were blown down. |
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 |
|---|---|---|---|
| Jan 7, 4:00 AM CST | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 00:00Z, 10.0 hours before the alert went out and 113 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
- 4 J/kg
- Mixed-layer CIN
- -252 J/kg
- Mixed-layer LCL
- 768 m above ground
- 0-6 km bulk shear
- 63 kt
- 0-1 km storm-relative helicity
- 319 m²/s²
- 0-3 km storm-relative helicity
- 407 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.1
The text
As transmitted, in the capitals the NWS used until 2016.
591 WUUS1 KJAN 071002 RRA SVRJAN MSC035-071030- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE JACKSON MS 400 AM CST WED JAN 7 1998 THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 430 AM CST FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTHEAST MISSISSIPPI ...FORREST COUNTY AT 355 AM DOPPLER RADAR IN JACKSON INDICATED A SEVERE THUNDERSTORM IN NORTH STONE COUNTY NEAR WIGGINS. THE STORM WAS MOVING TO THE NORTH AT 45 TO 50 MPH. THE TOWN OF BROOKLYN IS IN ITS PATH. SEVERE THUNDERSTORMS PRODUCE WIND IN EXCESS OF 55 MPH...LARGE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. < 72
The office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 7, 2:30 AM CST | Flash Flood Warning | JAN | Forrest, Lamar, Marion | 4 hr |
| Jan 7, 4:27 AM CST | Flash Flood Warning | JAN | Clarke, Jasper, Lauderdale | 3 hr |
| Jan 7, 4:27 AM CST | Flash Flood Warning | JAN | Jones | 3 hr |
| Jan 7, 5:19 AM CST | Severe Thunderstorm Warning | JAN | Jones | 41 min |
| Jan 7, 7:37 AM CST | Flash Flood Warning | JAN | Lauderdale | 83 min |
| Jan 7, 8:54 AM CST | Flash Flood Warning | JAN | Kemper, Lauderdale, Neshoba, Newton | 3 hr |
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; radar from the NEXRAD Level II archive.