Alert archive / Mississippi / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 489, NWS Jackson, MS
NWS Jackson, MS issued this severe thunderstorm warning at Jul 11, 1998, 6:29 PM CDT for Copiah County, Jefferson County, Lincoln County, Mississippi. It was in force for 36 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
- Jul 11, 1998, 6:29 PM CDT (23:29 UTC)
- Expired
- Jul 11, 1998, 7:05 PM CDT
- In force
- 36 min
- Issued by
- NWS Jackson, MS
- Area
- Whole counties
Counties Copiah County, MS, Jefferson County, MS, Lincoln County, MS
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 11, 6:35 PM CDT | Thunderstorm Wind | Hazlehurst, MS | Several trees 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 nearest sounding before it
Jackson, MS (KJAN), launched 12:00Z, 11.5 hours before the alert went out and 86 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
- 565 J/kg
- Mixed-layer CIN
- -251 J/kg
- Mixed-layer LCL
- 1344 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- 127 m²/s²
- 0-3 km storm-relative helicity
- 177 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KJAN 112328 RRA SVRJAN MSC029-063-085-120005- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE JACKSON MS 629 PM CDT SAT JUL 11 1998 THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHERN COPIAH COUNTY IN CENTRAL MISSISSIPPI EASTERN JEFFERSON COUNTY IN SOUTHWESTERN MISSISSIPPI LINCOLN COUNTY IN SOUTH CENTRAL MISSISSIPPI * UNTIL 705 PM CDT * AT 628 PM CDT... RADAR INDICATED A SEVERE THUNDERSTORM 21 MILES NORTHWEST OF BROOKHAVEN OR 21 MILES WEST OF WESSON MOVING SOUTHEAST AT 25 MPH. * THIS STORM WILL MAINLY AFFECT SMALLER COMMUNITIES AND RURAL AREAS. DAMAGING WINDS AND HEAVY RAIN ARE LIKELY. GO INSIDE A STURDY BUILDING AND STAY AWAY FROM WINDOWS! 68
The office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 10, 7:48 PM CDT | Severe Thunderstorm Warning | JAN | Madison, Rankin | 32 min |
| Jul 10, 7:53 PM CDT | Severe Thunderstorm Warning | JAN | Sharkey | 32 min |
| Jul 10, 10:10 PM CDT | Severe Thunderstorm Warning | JAN | Lincoln | 50 min |
| Jul 11, 2:18 PM CDT | Severe Thunderstorm Warning | JAN | Madison | 32 min |
| Jul 11, 2:47 PM CDT | Severe Thunderstorm Warning | JAN | Leake | 33 min |
| Jul 11, 3:37 PM CDT | Severe Thunderstorm Warning | JAN | Simpson | 33 min |
| Jul 11, 3:56 PM CDT | Severe Thunderstorm Warning | JAN | Covington, Jefferson Davis | 34 min |
| Jul 11, 4:02 PM CDT | Severe Thunderstorm Warning | JAN | Warren | 33 min |
| Jul 11, 4:27 PM CDT | Severe Thunderstorm Warning | JAN | Jasper | 33 min |
| Jul 11, 4:45 PM CDT | Severe Thunderstorm Warning | JAN | Hinds | 35 min |
| Jul 11, 5:12 PM CDT | Severe Thunderstorm Warning | JAN | Copiah | 48 min |
| Jul 11, 6:53 PM CDT | Severe Thunderstorm Warning | JAN | Washington | 32 min |
| Jul 11, 6:57 PM CDT | Severe Thunderstorm Warning | JAN | Franklin | 33 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.