Alert archive / Mississippi / Severe Thunderstorm Warnings in 1989
Severe Thunderstorm Warning 64, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at May 23, 1989, 7:31 PM CDT for Jackson County, Mississippi. It was in force for 44 min.
The area
The counties it named.
The facts
- Issued
- May 23, 1989, 7:31 PM CDT (00:31 UTC)
- Expired
- May 23, 1989, 8:15 PM CDT
- In force
- 44 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.
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 00:00Z, 0.5 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
- 1958 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 1252 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 75 m²/s²
- 0-3 km storm-relative helicity
- 166 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 4.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KMOB 240032
SVRMOB
MSC059-240115-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
731 PM CDT TUE MAY 23 1989
THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 815 PM CDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
IN SOUTHEAST MISSISSIPPI
...NORTHERN JACKSON
AT 727 PM NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE
THUNDERSTORM IN NORTHERN JACKSON COUNTY MISSISSIPPI NEAR HARLESTON. IT
WAS MOVING TO THE SOUTH AT 15 MILES AN HOUR. THIS STORM COULD PRODUCE
LARGE HAIL...VERY STRONG WINDS AND TORRENTIAL RAINFALL CAUSING LOCAL
FLOODING OF STREETS AND ROADS.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, May 23, 3:26 PM CDT, 4 hours 5 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE PENSACOLA FL 330 PM CDT TUE MAY 23 1989 ...A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 5 PM CDT AND INCLUDES THE FOLLOWING COUNTIES IN NORTHWEST FLORIDA. ESCAMBIA...SANTA ROSA...OKALOOSA...WALTON...BAY...WASHINGTON AND HOLMES. AT 330 PM CDT...NUMEROUS THUNDERSTORMS...SOME WITH VERY HEAVY RAIN... WERE OVER SOUTH ALABAMA AND THE WEST FLORIDA PANHANDLE. THUNDERSTORMS MAINLY 15 MILES OR MORE INLAND BUT WERE BEGINNING TO SPREAD SLOWLY SOUTH TOWARD THE COAST. INDIVIDUAL THUNDERSTORMS WERE MOVING TOWARD THE EAST ABOUT 25 MILES AN HOUR. STRONG GUSTY WINDS ALONG WITH PERIODS OF HEAVY RAIN AND FREQUENT LIGHTNING CAN B"E EXPECTED WITH THE PASSAGE OF THESE THUNDERSTORMS.
Special weather statement, May 23, 4:10 PM CDT, 3 hours 21 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOBILE AL 410 PM CDT TUE MAY 23 1989 ...SOUTHWEST ALABAMA REMAINS UNDER A SEVERE THUNDERSTORM WATCH UNTIL 5 PM CDT... AT 405 PM NUMEROUS THUNDERSTORMS WERE OVER SOUTHWEST ALABAMA MOVING EAST-SOUTHEAST AT 20 MPH. THE STRONGEST STORMS WERE LOCATED FROM SOUTHWEST MONROE COUNTY EXTENDING SOUTHWARD ACROSS WESTERN ESCAMBIA COUNTY. OTHER THUNDERSTORMS WERE OCCURRING IN WASHINGTON AND SOUTHERN CLARKE COUNTIES. LITTLE THUNDERSTORM ACTIVITY WAS IN MOBILE OR BALDWIN COUNTIES BUT STORMS ARE EXPECTED TO MOVE INTO THESE COUNTIES DURING THE NEXT SEVERAL HOURS. RESIDENTS OF SOUTHWEST ALABAMA SHOULD REMAIN ALERT FOR THE POSSIBLITY OF SEVERE WEATHER dFOR THE REMAINDER OF THE AFTERNOON.
Special weather statement, May 23, 5:44 PM CDT, 1 hour 47 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOBILE AL 545 PM CDT TUE MAY 23 1989 ...SEVERE THUNDERSTORM WATCH UNTIL 10 PM FOR ALL OF SOUTHWEST ALABAMA AND SOUTHEAST MISSISSIPPI... AT 540 PM A LINE OF THUNDERSTORMS 20 MILES WIDE EXTENDED FROM THE LAUREL-HATTIESBURG AREA SOUTHEASTWARD ACROSS CITRONELLE AND BAY MINETTE ALABAMA. THE LINE WAS MOVING SOUTH AT 15 MPH WHILE THE THUNDERSTORMS WERE MOVING SOUTHEAST AT 25 MPH. THE LINE OF STORMS HAS DECREASED IN INTENSITY DURING THE PAST HOUR. HOWEVER...THE LINE COULD INTENSIFY AT ANY TIME THIS EVENING. STRONG GUSTY WINDS...DANGEROUS LIGHTNING...HEAVY RAINFALL AND POSSIBLY HAIL CAN BE EXPECTED WITH THESE THUNDERSTORMS AS THEY CONTINUE MOVING TOWARDS THE COAST.
Special weather statement, May 23, 6:31 PM CDT, 1 hour before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE PENSACOLA FL 630 PM CDT TUE MAY 23 1989 ...A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT FOR THE NORTHWEST FLORIDA PANHANDLE... AT 630 PM CDT...THUNDERSTORMS...SOME WITH VERY HEAVY RAIN...WERE OVER THE FLORIDA PANHANDLE AND SOUTHWEST ALABAMA WITH THE HEAVIEST RAIN STRETCHING FROM FT WALTON NORTHWEST TO NEAR MOBILE. THE THUNDERSTORMS WERE MOVING SOUTHEAST AT 25 TO 30 MILES AN HOUR. THESE THUNDERSTORMS MAY PRODUCE PERIODS OF VERY HEAVY RAIN...FREQUENT LIGHTNING...STRONG GUSTY WINDS AND POSSIBLE HAIL. PEOPLE IN THESE AREAS SHOULD STAY ALERT AND BE PREPARED TO MOVE TO SAFETY IF WARNINGS ARE ISSUED. F
Special weather statement, May 23, 7:31 PM CDT, 0 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOBILE AL 730 PM CDT TUE MAY 23 1989 ...SEVERE THUNDERSTORM WATCH UNTIL 10 PM FOR ALL OF SOUTHWEST ALABAMA AND SOUTHEAST MISSISSIPPI... AT 725 PM A LINE OF THUNDERSTORMS EXTENDED FROM THE HATTIESBURG MISSISSIPPI SOUTHEASTWARD TO MOBILE AND LOXLEY ALABAMA. THE LINE WAS MOVING SOUTH AT 25 MPH OVER THE ALABAMA COUNTIES WHILE AT MUCH SLOWER MOVEMENT WAS NOTED IN MISSISSIPPI. THE STRONGEST THUNDERSTORMS WERE ACROSS THE CENTRAL PORTIONS OF MOBILE AND BALDWIN COUNTIES FROM MOBILE TO LOXLEY AND OVER NORTHERN JACKSON COUNTY OF MISSISSIPPI. EXPECT STRONG GUSTY WINDS...DANGEROUS LIGHTNING ....HEAVY RAINFALL AND POSSIBLY SOME HAIL AS THE LINE OF STORMS MOVES TOWARDS THE COASTAL WATERS.
Special weather statement, May 23, 7:31 PM CDT, 0 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE PENSACOLA FL 730 PM CDT TUE MAY 23 1989 ...A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT FOR THE NORTHWEST FLORIDA PANHANDLE... AT 730 PM CDT...THUNDERSTORMS...SOME WITH VERY HEAVY RAIN...STRETCHED IN A BAND FROM DESTIN WEST TO MOBILE. HEAVY RAIN...FREQUENT LIGHTNING.. GUSTY WINDS AND POSSIBLE HAIL MAY ACCOMPANY THE THUNDERSTORMS AS THEY MOVE SOUTHEAST AT 25 TO 30 MILES AN HOUR. OTHER THUNDERSTORMS WERE NEAR APALACHICOLA...OVER SOUTHWEST ALABAMA AND SOUTHEAST MISSISSIPPI.
The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 23, 9:02 PM CDT | Severe Thunderstorm Warning | MOB | Jackson | 28 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.