Alert archive / Mississippi / Severe Thunderstorm Warnings in 1999
Severe Thunderstorm Warning 577, NWS Jackson, MS
NWS Jackson, MS issued this severe thunderstorm warning at Aug 9, 1999, 6:27 PM CDT for Hinds County, Rankin County, Mississippi. It was in force for 33 min. 2 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
- Aug 9, 1999, 6:27 PM CDT (23:27 UTC)
- Expired
- Aug 9, 1999, 7:00 PM CDT
- In force
- 33 min
- Issued by
- NWS Jackson, MS
- Area
- Whole counties
Counties Hinds County, MS, Rankin County, MS
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 9, 6:45 PM CDT | Thunderstorm Wind | Pearl, MS | Numerous trees were blown down. |
| Aug 9, 6:45 PM CDT | Thunderstorm Wind | Jackson, MS | Roofs were blown off of several businesses. Numerous trees and power lines 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 nearest sounding before it
Jackson, MS (KJAN), launched 12:00Z, 11.5 hours before the alert went out and 12 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
- 3127 J/kg
- Mixed-layer CIN
- -56 J/kg
- Mixed-layer LCL
- 1041 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 10 m²/s²
- 0-3 km storm-relative helicity
- 24 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
358 WUUS1 KJAN 092329 RRA SVRJAN MSC049-121-100000- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE JACKSON MS 627 PM CDT MON AUG 9 1999 THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... HINDS COUNTY IN CENTRAL MISSISSIPPI RANKIN COUNTY IN CENTRAL MISSISSIPPI * UNTIL 700 PM CDT * AT 627 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM OVER PEARL...MOVING SOUTH AT 15 MPH. * THE SEVERE THUNDERSTORM WILL BE... NEAR FLORENCE AT 640 PM CDT SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55 MPH... DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER COVERS THE ROAD. 74
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, Aug 9, 5:15 PM CDT, 1 hour 12 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
515 PM CDT MON AUG 09 1999
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....PARISH/COUNTY LOCATION....
0235 PM 5 W MERIDIAN MS WIND DAMAGE
08/09/99 LAUDERDALE ROOF BLOWN OFF OF A
BARN...REPORTED BY
LAUDERDALE EOC
0455 PM FOREST MS WIND DAMAGE
08/09/99 SCOTT TWO TREES BLOWN DOWN ACROSS
CITY STREET...REPORTED BY
CITY HALLLocal storm report, Aug 9, 5:15 PM CDT, 1 hour 12 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
515 PM CDT MON AUG 09 1999
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....PARISH/COUNTY LOCATION....
0235 PM 5 W MERIDIAN MS WIND DAMAGE
08/09/99 LAUDERDALE ROOF BLOWN OFF OF A
BARN...REPORTED BY
LAUDERDALE EOC
0455 PM FOREST MS WIND DAMAGE
08/09/99 SCOTT TWO TREES BLOWN DOWN ACROSS
CITY STREET...REPORTED BY
CITY HALLThe office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 9, 4:32 PM CDT | Severe Thunderstorm Warning | JAN | Scott | 28 min |
| Aug 9, 5:55 PM CDT | Severe Thunderstorm Warning | JAN | Hinds, Madison, Rankin | 35 min |
| Aug 9, 6:11 PM CDT | Severe Thunderstorm Warning | JAN | Covington, Jefferson Davis, Simpson | 34 min |
| Aug 9, 6:41 PM CDT | Severe Thunderstorm Warning | JAN | Covington, Jefferson Davis, Simpson | 34 min |
| Aug 9, 6:53 PM CDT | Severe Thunderstorm Warning | JAN | Lawrence | 37 min |
Nearby
Severe Thunderstorm Warnings in Mississippi, 1999Every severe thunderstorm warning in 1999
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.