Alert archive / Mississippi / Severe Thunderstorm Warnings in 1989
Severe Thunderstorm Warning 12, NWS Jackson, MS
NWS Jackson, MS issued this severe thunderstorm warning at Feb 20, 1989, 10:54 PM CST for Jones 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
- Feb 20, 1989, 10:54 PM CST (04:54 UTC)
- Expired
- Feb 20, 1989, 11:30 PM CST
- In force
- 36 min
- Issued by
- NWS Jackson, MS
- Area
- Whole counties
County Jones County, MS
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Feb 20, 11:00 PM CST | Thunderstorm Wind 0 | Jones, MS |
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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Jackson, MS (KJAN), launched 00:00Z, 4.9 hours before the alert went out and 116 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
- 550 J/kg
- Mixed-layer CIN
- -66 J/kg
- Mixed-layer LCL
- 1115 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 305 m²/s²
- 0-3 km storm-relative helicity
- 410 m²/s²
- Significant tornado parameter
- 0.8
- Supercell composite
- 6.9
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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
Special weather statement, Feb 20, 9:53 PM CST, 1 hour 1 minute before
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</html>Special weather statement, Feb 20, 10:02 PM CST, 52 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE JACKSON MS 1005 PM CST MON FEB 20 1989 AT 1000 PM CST...JACKSON RADAR INDICATED A LINE OF INTENSE THUNDERSTORMS EXTENDING FROM NEAR STARKVILLE TO PRENTISS TO MCCOMB. THE LINE IS MOVING EAST AT 30 MPH. A LARGE AREA OF RAIN AND THUNDERSTORMS COVER MUCH OF SOUTHWEST..CENTRAL AND NORTHEAST MISSISSIPPI. THE RAIN IS GRADUALLY ENDING IN THE EXTREME NORTHWEST PORTIONS OF MISSISSIPPI.
Special weather statement, Feb 20, 10:16 PM CST, 38 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSON MS 1015 PM CST MON FEB 20 1989 ...TORNADO WATCH NUMBER 7 REMAINS IN EFFECT IN MISSISSIPPI EAST OF A TUPELO-WEST POINT-FOREST-MCCOMB LINE... THE THUNDERSTORMS THAT PRODUCED THE DAMAGE IN CENTRAL AND NORTHERN MISSISSIPPI EARLIER THIS EVENING HAVE NOW SHIFTED INTO EAST CENTRAL AND SOUTH CENTRAL MISSISSIPPI.
Local storm report, Feb 20, 10:20 PM CST, 34 minutes before
LOCAL STORM REPORT NATIONAL WEATHER SERVICE MERIDIAN MS 1019 PM CST MON FEB 20 1989 AT 1005 PM CST THE UNION FIRE DEPARTMENT REPORTED A FUNNEL CLOUD NEAR UNION MISSISSIPPI MOVING NORTHEAST.
Local storm report, Feb 20, 10:23 PM CST, 31 minutes before
LOCAL STORM REPORT NATIONAL WEATHER SERVICE MERIDIAN MS 1019 PM CST MON FEB 20 1989 AT 1005 PM CST THE UNION FIRE DEPARTMENT IN NORTHERN NEWTON COUNTY REPORTED A FUNNEL CLOUD NEAR UNION MISSISSIPPI MOVING NORTHEAST.
Special weather statement, Feb 20, 10:29 PM CST, 25 minutes before
SPECIAL WEATHER STATEMENT...CORRECTED ARE NORTH OF WEST POINT NO NATIONAL WEATHER SERVICE JACKSON MS LONGER IN WATCH 1030 PM CST MON FEB 20 1989 ...TORNADO WATCH NUMBER 7 REMAINS IN EFFECT IN MISSISSIPPI EAST OF A WEST POINT-FOREST-MCCOMB LINE... THE THUNDERSTORMS THAT PRODUCED THE DAMAGE IN CENTRAL AND NORTHERN MISSISSIPPI EARLIER THIS EVENING HAVE NOW SHIFTED INTO EAST CENTRAL AND SOUTH CENTRAL MISSISSIPPI.
The office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 20, 6:23 PM CST | Tornado Warning | JAN | Attala, Madison | 37 min |
| Feb 20, 6:23 PM CST | Tornado Warning | JAN | Holmes | 37 min |
| Feb 20, 6:50 PM CST | Severe Thunderstorm Warning | JAN | Yazoo | 25 min |
| Feb 20, 7:00 PM CST | Tornado Warning | JAN | Attala | 30 min |
| Feb 20, 7:21 PM CST | Severe Thunderstorm Warning | JAN | Claiborne | 39 min |
| Feb 20, 7:27 PM CST | Tornado Warning | JAN | Choctaw | 33 min |
| Feb 20, 7:50 PM CST | Severe Thunderstorm Warning | JAN | Hinds | 40 min |
| Feb 20, 8:18 PM CST | Tornado Warning | JAN | Hinds | 27 min |
| Feb 20, 8:21 PM CST | Severe Thunderstorm Warning | JAN | Copiah, Jefferson | 39 min |
| Feb 20, 8:28 PM CST | Tornado Warning | JAN | Rankin | 32 min |
| Feb 20, 8:32 PM CST | Tornado Warning | JAN | Winston | 43 min |
| Feb 20, 8:34 PM CST | Tornado Warning | JAN | Madison | 26 min |
| Feb 20, 8:42 PM CST | Tornado Warning | JAN | Copiah | 48 min |
| Feb 20, 8:46 PM CST | Tornado Warning | JAN | Hinds | 14 min |
| Feb 20, 8:57 PM CST | Severe Thunderstorm Warning | JAN | Rankin | 18 min |
| Feb 20, 9:04 PM CST | Severe Thunderstorm Warning | JAN | Lincoln | 31 min |
| Feb 20, 9:07 PM CST | Tornado Warning | JAN | Winston | 53 min |
| Feb 20, 9:15 PM CST | Severe Thunderstorm Warning | JAN | Smith | 30 min |
| Feb 20, 9:22 PM CST | Severe Thunderstorm Warning | JAN | Leake | 38 min |
| Feb 20, 9:50 PM CST | Tornado Warning | JAN | Neshoba, Newton | 40 min |
| Feb 20, 10:07 PM CST | Severe Thunderstorm Warning | JAN | Smith | 38 min |
| Feb 20, 11:06 PM CST | Tornado Warning | JAN | Jasper | 39 min |
| Feb 20, 11:20 PM CST | Tornado Warning | JAN | Clarke | 25 min |
| Feb 21, 12:14 AM CST | Severe Thunderstorm Warning | JAN | Choctaw | 31 min |
Nearby
Severe Thunderstorm Warnings in Mississippi, 1989Every severe thunderstorm warning 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.