Alert archive / Louisiana / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 397, NWS Jackson, MS
NWS Jackson, MS issued this severe thunderstorm warning at Jun 15, 1998, 8:31 PM CDT for Tensas Parish, Louisiana. It was in force for 49 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
- Jun 15, 1998, 8:31 PM CDT (01:31 UTC)
- Expired
- Jun 15, 1998, 9:20 PM CDT
- In force
- 49 min
- Issued by
- NWS Jackson, MS
- Area
- Whole counties
County Tensas Parish, LA
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 15, 8:45 PM CDT | Thunderstorm Wind | St Joseph, LA | Several trees and power lines were blown down and roofing was blown off a house. |
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 |
|---|---|---|---|
| Jun 15, 3:45 PM CDT | Tornado Watch | SPC | 5 hr |
| Jun 15, 8:00 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Jackson, MS (KJAN), launched 00:00Z, 1.5 hours before the alert went out and 124 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
- 3337 J/kg
- Mixed-layer CIN
- -34 J/kg
- Mixed-layer LCL
- 1496 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 62 m²/s²
- 0-3 km storm-relative helicity
- 287 m²/s²
- Significant tornado parameter
- 1.8
- Supercell composite
- 17.9
The text
As transmitted, in the capitals the NWS used until 2016.
877 WUUS1 KJAN 160129 RRA SVRJAN LAC107-160220- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE JACKSON MS 831 PM CDT MON JUN 15 1998 THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... TENSAS PARISH IN NORTHEASTERN LOUISIANA * UNTIL 920 PM CDT * AT 829 PM CDT... RADAR INDICATED A SEVERE THUNDERSTORM 22 MILES WEST OF SAINT JOSEPH OR 14 MILES WEST OF WATERPROOF MOVING EAST AT 35 MPH. * SOME LOCATIONS IN THE PATH OF THIS STORM INCLUDE... WATERPROOF BY 850 PM CDT NEWELLTON BY 905 PM CDT SAINT JOSEPH BY 905 PM CDT DAMAGING WINDS AND LARGE HAIL ARE LIKELY. GO INSIDE A STURDY BUILDING AND STAY AWAY FROM WINDOWS 75
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, Jun 15, 7:55 PM CDT, 36 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
755 PM CDT MON JUN 15 1998
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....PARISH/COUNTY LOCATION....
0635 PM BENTON MS TORNADO
06/15/98 YAZOO TORNADO REPORTED BY YAZOO
SHERRIFFS OFFICE
0640 PM OAK GROVE LA 1.75 INCH HAIL
06/15/98 WEST CARROLL
0727 PM ONWARD MS 1.75 INCH HAIL
06/15/98 ISSEQUENA GOLFBALL SIZED HAIL ON
ISSEQUENA/SHARKEY COUNTY
LINES
0745 PM YAZOO CITY MS TORNADO
06/15/98 YAZOO 3 TORNADOES REPORTED ON
GROUND NEAR HIGHWAY 49EThe office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 15, 7:36 PM CDT | Severe Thunderstorm Warning | JAN | East Carroll | 49 min |
| Jun 15, 7:40 PM CDT | Severe Thunderstorm Warning | JAN | Richland | 50 min |
| Jun 15, 7:50 PM CDT | Severe Thunderstorm Warning | JAN | Catahoula, Franklin | 50 min |
| Jun 15, 8:12 PM CDT | Severe Thunderstorm Warning | JAN | West Carroll | 33 min |
Nearby
Severe Thunderstorm Warnings in Louisiana, 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.