Alert archive / Mississippi / Severe Thunderstorm Warnings in 1989
Severe Thunderstorm Warning 50, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at Apr 4, 1989, 8:20 PM CDT for Hancock County, Mississippi. It was in force for 40 min.
The area
The counties it named.
The facts
- Issued
- Apr 4, 1989, 8:20 PM CDT (01:20 UTC)
- Expired
- Apr 4, 1989, 9:00 PM CDT
- In force
- 40 min
- Issued by
- NWS Mobile, AL
- Area
- Whole counties
County Hancock 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
Slidell Radar S, LA (KSIL), launched 00:00Z, 1.3 hours before the alert went out and 27 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
- 2583 J/kg
- Mixed-layer CIN
- -10 J/kg
- Mixed-layer LCL
- 889 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 113 m²/s²
- 0-3 km storm-relative helicity
- 134 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 4.4
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KMOB 050121
SVRMOB
MSC045-050200-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
820 PM CDT TUE APR 4 1989
THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 900 PM CDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
IN SOUTHEAST MISSISSIPPI
...HANCOCK
AT 815 PM CDT RADAR INDICATED A SEVERE THUNDERSTORM 5 MILES SOUTH OF
PICAYUNE MISSISSIPPI. THE STORM WAS MOVING TO THE SOUTHEAST AT
30 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
Local storm report, Apr 4, 6:03 PM CDT, 2 hours 17 minutes before
ATTN SELS STORM REPORT NATIONAL WEATHER SERVICE MOBILE AL 555 PM CDT TUE APR 4 1989 AT 550 PM DUANES CHEVRON LOCATED ABOUT TWO MILES SOUTH OF CAMP SHELBY IN FORREST COUNTY MISSISSIPPI REPORTED DIME 1SIZE HAIL...ALSO HAD RECEIVED NUMEROUS REPORTS OF HAIL UP TO THE SIZE OF GOLFBALLS COVERNING THE GROUND AND CAUSING DRIVING PROBLEMS AT BROOKLYN IN THE SOUTH PART OF THE COUNTY. TIME OF OCCURRENCE WAS 500 PM.
Local storm report, Apr 4, 6:14 PM CDT, 2 hours 6 minutes before
ATTN SELS STORM REPORT NATIONAL WEATHER SERVICE MOBILE AL 615 PM CDT TUE APR 4 1989 THE SHERIFFS OFFICE IN GROVE HILL ALABAMA...CLARKE COUNTY...REPORTED HAIL MOSTLY MARBLE SIZE...BUT SOME UP TO GOLF> BALLS AT 540 PM CDT.
Local storm report, Apr 4, 6:44 PM CDT, 1 hour 36 minutes before
ATTN SELS STORM REPORT NATIONAL WEATHER SERVICE MOBILE AL 640 PM CDT TUE APR 4 1989 THE SHERIFFS OFFICE IN MILLRY ALABAMA...WASHINGTON COUNTY...REPORTED A POSSIBLE TORNADO THAT PARTIALLY UNROOFED THE IGoA STORE. ALSO... LARGE HAIL THAT DAMAGED VEHICLES. TIME OF OCCURRENCE 440 TO 500 PM.
Special weather statement, Apr 4, 6:47 PM CDT, 1 hour 33 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE PENSACOLA FL 645 PM CDT TUE APR 4 1989 ...A TORNADO WATCH IS IN EFFECT FOR ESCAMBIA AND SANTA ROSA COUNTIES OF NORTHWEST FLORIDA UNTIL 10 PM CDT THIS TUESDAY EVENING... AT 630PM CDT...A SOLID LINE OF STRONG...POTENTIALLY SEVERE... THUNDERSTORMS STRETCHED ACROSS SOUTHERN ALABAMA AND SOUTHEAST MISSISSIPPI. THE LINE EXTENDED FROM TROY IN PIKE COUNTY OF ALABAMA SOUTHWESTWARD TO CITRONELLE IN NORTHERN MOBILE COUNTY...THEN ACROSS SOUTHEAST MISSISSIPPI. THE LINE WAS MOVING TO THE SOUTHEAST ABOUT 15 MILES AN HOUR. OTHER THUNDERSTORMS HAD DEVELOPED AHEAD OF THE LINE IN THE WESTERN END OF NORTHWEST FLORIDA. THESE WERE MOVING NORTHEAST AT 35 MILES AN HOUR.
Local storm report, Apr 4, 7:29 PM CDT, 51 minutes before
ATTN SELS STORM REPORT NATIONAL WEATHER SERVICE MOBILE AL 730 PM CDT TUE APR 4 1989 700 PM CDT...GREENE COUNTY MISSISSIPPI SHERIFFS OFFICE REPORTED DIME TO QUARTER SIZE HAIL. 725 PM CDT...JACKSON PD IN CLARKE COUNTY ALABAMA REPORTED DIME SIZE HAIL OCCURRED AROUND 645 PM.
Special weather statement, Apr 4, 7:53 PM CDT, 27 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PENSACOLA FL 750 PM CDT TUE APR 4 1989 ...A TORNADO WATCH IS IN EFFECT FOR ESCAMBIA AND SANTA ROSA COUNTIES OF NORTHWEST FLORIDA UNTIL 10 PM CDT THIS TUESDAY EVENING... A LINE OF STRONG THUNDERSTORMS IS BEGINNING TO ENTER THE NORTHWEST CORNER OF THE FLORIDA PANHANDLE. THIS LINE OF STORMS WILL BRING PERIODS OF VERY HEAVY RAINS...STRONG GUSTY WINDS...FREQUENT LIGHTNING ...SMALL HAIL AND THE POSSIBILITY OF A TORNADO. THE LINE WAS MOVING SOUTHEAST AT 15 MILES AN HOUR WHILE THE INDIVIDUAL THUNDERSTORMS WERE MOVING NORTHEAST AT 35 TO 40 MILES AN HOUR. THESE THUNDERSTORMS HAVE HAD A HISTORY OF BEING SEVERE WITH REPORTS OF HAIL AND TORNADOES IN ALABAMA AND MISSISSIPPI. RESIDENTS OF NORTHWEST FLORIDA SHOULD BE PREPARED TO TAKE IMMEDIATE SHELTER IF WARNINGS ARE ISSUED AND STAY INFORMED OF THE DANGEROUS WEATHER SITUATION.
The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 4, 7:04 PM CDT | Severe Thunderstorm Warning | MOB | George | 56 min |
| Apr 4, 9:53 PM CDT | Severe Thunderstorm Warning | MOB | Jackson | 67 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; the sounding from the Mesonet's radiosonde archive.