Alert archive / Mississippi / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 486, NWS Jackson, MS
NWS Jackson, MS issued this severe thunderstorm warning at Jul 11, 1998, 5:12 PM CDT for Copiah County, Mississippi. 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
- Jul 11, 1998, 5:12 PM CDT (22:12 UTC)
- Expired
- Jul 11, 1998, 6:00 PM CDT
- In force
- 48 min
- Issued by
- NWS Jackson, MS
- Area
- Whole counties
County Copiah County, MS
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 11, 5:45 PM CDT | Thunderstorm Wind | Crystal Spgs, 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, 10.2 hours before the alert went out and 61 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.
002 WUUS1 KJAN 112211 RRA SVRJAN MSC029-112300- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE JACKSON MS 512 PM CDT SAT JUL 11 1998 THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... COPIAH COUNTY IN CENTRAL MISSISSIPPI * UNTIL 600 PM CDT * AT 510 PM CDT... RADAR INDICATED A SEVERE THUNDERSTORM 10 MILES NORTH OF HAZLEHURST OR 5 MILES WEST OF CRYSTAL SPRINGS MOVING SOUTHEAST AT 15 MPH. * SOME LOCATIONS IN THE PATH OF THIS STORM INCLUDE... CRYSTAL SPRINGS BY 520 PM CDT HAZLEHURST BY 540 PM CDT DAMAGING WINDS AND LARGE HAIL ARE LIKELY. GO INSIDE A STURDY BUILDING AND STAY AWAY FROM WINDOWS 75
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, 6:29 PM CDT | Severe Thunderstorm Warning | JAN | Copiah, Jefferson, Lincoln | 36 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.