Alert archive / Mississippi / Severe Thunderstorm Warnings in 1989
Severe Thunderstorm Warning 98, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at Jun 30, 1989, 2:14 PM CDT for Jackson County, Mississippi. It was in force for 31 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 30, 1989, 2:14 PM CDT (19:14 UTC)
- Expired
- Jun 30, 1989, 2:45 PM CDT
- In force
- 31 min
- Issued by
- NWS Mobile, AL
- Area
- Whole counties
County Jackson 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 |
|---|---|---|---|
| Jun 30, 2:30 PM CDT | Hail 0.75 | Jackson, 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
Slidell Radar S, LA (KSIL), launched 12:00Z, 7.2 hours before the alert went out and 106 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
- 983 J/kg
- Mixed-layer CIN
- -29 J/kg
- Mixed-layer LCL
- 663 m above ground
- 0-6 km bulk shear
- 8 kt
- 0-1 km storm-relative helicity
- -12 m²/s²
- 0-3 km storm-relative helicity
- 15 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KMOB 301920
SVRMOB
MSC059-301945-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
214 PM CDT FRI JUN 30 1989
THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 245 PM CDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
IN SOUTHEAST MISSISSIPPI
...EASTERN JACKSON
AT 215 PM CDT THE MOBILE RADAR SHOWED A SEVERE THUNDERSTORM NEAR BIG
POINT MISSISSIPPI MOVING TO THE NORTH TOWARD HURLEY MISSISSIPPI AT 10
MPH.
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
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.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, Jun 30, 12:55 PM CDT, 1 hour 19 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOBILE AL 100 PM CDT FRI JUN 30 1989 ...THUNDERSTORMS WITH HEAVY RAINFALL MOVING ACROSS SOUTHEAST MISSISSIPPI AND SOUTHWEST ALABAMA... AT 1250 PM THE MOBILE RADAR INDICATED A BAND OF THUNDERSTORMS FROM JUST NORTH OF PENSACOLA FLORIDA EXTENDING WEST-NORTHWEST INTO SOUTHEAST MISSISSIPPI. THE STORMS WERE MOVING TOWARD THE NORTH AT 15 MPH. THE THUNDERSTORMS WILL CONTINUE FOR SEVERAL HOURS THIS AFTERNOON AND PRODUCE RAINFALL AMOUNTS OF 1 TO 2 INCHES IN A SHORT PERIOD OF TIME. THE RAINFALL WILL CAUSE FLOODING OF STREETS AND ROADS AND MAKE DRIVING HAZARDOUS. MOTORISTS SHOULD EXERCISE CAUTION. IN ADDITION THE THUNDERSTORMS WILL PRODUCE DANGEROUS LIGHTNING...STRONG GUSTY WINDS AND POSSIBLY SOME HAIL.
Local storm report, Jun 30, 1:20 PM CDT, 54 minutes before
ATTN SELS STORM REPORT NATIONAL WEATHER SERVICE MOBILE AL 115 PM CDT FRI JUN 30 1989 WIND DAMAGE OCCURRED AT 1245 PM AT THE CORNER OF COTTAGE HILL AND HILLCREST ROADS...ABOUT 3 MILES SOUTHEAST OF THE MOBILE AIRPORT. ONE STORE WINDOW WAS BLOWN OUT AND ROOFING MATERIALS REMOVED FROM SEVERAL STORES. THE MOBILE MIC SURVEYED THE AREA AND REPORTED THAT THE DAMAGE WAS CAUSED BY DOWNBURST THUNDERSTORM WINDS.
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.