Alert archive / Mississippi / Tornado Warnings in 1989
Tornado Warning 4, NWS Jackson, MS
NWS Jackson, MS issued this tornado warning at Feb 20, 1989, 3:47 PM CST for Warren County, Mississippi. It was in force for 43 min.
The area
The counties it named.
The facts
- Issued
- Feb 20, 1989, 3:47 PM CST (21:47 UTC)
- Expired
- Feb 20, 1989, 4:30 PM CST
- In force
- 43 min
- Issued by
- NWS Jackson, MS
- Area
- Whole counties
County Warren County, MS
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Jackson, MS (KJAN), launched 12:00Z, 9.8 hours before the alert went out and 73 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 600 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 247 m²/s²
- 0-3 km storm-relative helicity
- 311 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KJAN 202152 COR
TORJAN
MSC149-202230-
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING ...CORRECTED...
NATIONAL WEATHER SERVICE JACKSON MS
347 PM CST MON FEB 20 1989
THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL 430 PM CST
FOR PEOPLE IN THE FOLLOWING COUNTY...
IN WEST CENTRAL MISSISSIPPI
...WARREN
AT 345 PM CST...A SEVERE THUNDERSTORM WITH A POSSIBLE TORNADO WAS
CROSSING THE MISSISSIPPI RIVER INTO WESTERN WARREN COUNTY ABOUT 20
MILES SOUTHWEST OF VICKSBURG. THIS STORM COULD MOVE INTO THE VICKSBURG
AREA WITHIN THE NEXT 10 TO 20 MINUTES. THIS STORM ALSO HAS A HISTORY OF
PRODUCING A TORNADO BACK OVER LOUISIANA A FEW HOURS AGO. MOVEMENT WAS
TO THE NORTHAEAST AT 35 MILES AN HOUR.
<
THIS IS A DANGEROUS STORM. MOVE QUICKLY TO UNDERGROUND SHELTER IF
AVAILABLE. OTHERWISE...GO TO AN INTERIOR ROOM ON THE LOWEST FLOOR.
AVOID WINDOWS. LEAVE CARS AND MOBILE HOMES FOR A STURDY BUILDING.
<What forecasters said that day
The local office's own words before this tornado warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
In the hours before
Special weather statement, Feb 20, 2:05 PM CST, 1 hour 42 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSON MS 205 PM CST MON FEB 20 1989 ...TORNADO WATCH NUMBER 5 IN EFFECT UNTIL 8 PM FOR A SMALL PART OF WEST CENTRAL AND SOUTHWEST MISSISSIPPI... AT 200 PM CST...JACKSON RADAR INDICATED A VERY INTENSE THUNDERSTORM OVER EAST CENTRAL LOUISIANA...NEAR JONESVILLE IN CATAHOULA PARISH. THIS STORM HAS A HISTORY OF BEING TORNADIC AND THE WEATHER SERVICE OFFICE IN BATON ROUGE HAS ISSUED A TORNADO WARNING UNTIL 250 PM FOR CATAHOULA AND NORTHERN CONCORDIA PARISHES. THE STORM WAS STILL ABOUT 25 MILES WEST OF THE MISSISSIPPI RIVER AS IT MOVED TO THE NORTHEAST AT 40 MILES AN HOUR. THE PRESENT TRACK WOULD TAKE THE STORM TO NEAR THE MISSISSIPPI RIVER JUST WEST OF PORT GIBSON AROUND 3 PM. IF THE STORM CONTINUES TO BE INTENSE... A WARNING WILL BE NECESSARY AS IT APPROACHES SOUTHWEST MISSISSIPPI.
The office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 20, 2:25 PM CST | Tornado Warning | JAN | Adams, Jefferson | 50 min |
| Feb 20, 3:06 PM CST | Tornado Warning | JAN | Claiborne, Jefferson | 54 min |
| Feb 20, 4:19 PM CST | Tornado Warning | JAN | Issaquena | 41 min |
| Feb 20, 4:29 PM CST | Tornado Warning | JAN | Warren | 46 min |
| Feb 20, 5:15 PM CST | Tornado Warning | JAN | Hinds, Warren, Yazoo | 45 min |
| Feb 20, 5:45 PM CST | Tornado Warning | JAN | Madison | 30 min |
| Feb 20, 5:58 PM CST | Tornado Warning | JAN | Yazoo | 32 min |
Nearby
Tornado Warnings in Mississippi, 1989Every tornado warning in 1989Tornadoes in 1989
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.