Alert archive / Mississippi / Severe Thunderstorm Warnings in 1989
Severe Thunderstorm Warning 41, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at Apr 4, 1989, 4:46 PM CDT for Forrest County, Mississippi. It was in force for 44 min.
The area
The counties it named.
The facts
- Issued
- Apr 4, 1989, 4:46 PM CDT (21:46 UTC)
- Expired
- Apr 4, 1989, 5:30 PM CDT
- In force
- 44 min
- Issued by
- NWS Mobile, AL
- Area
- Whole counties
County Forrest 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 12:00Z, 9.8 hours before the alert went out and 113 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
- 768 J/kg
- Mixed-layer CIN
- -203 J/kg
- Mixed-layer LCL
- 1075 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 90 m²/s²
- 0-3 km storm-relative helicity
- 132 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.7
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KMOB 042147
SVRMOB
MSC035-042230-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
446 PM CDT TUE APR 4 1989
THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 530 PM CDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
IN SOUTHEAST MISSISSIPPI
...SOUTHERN FORREST
AT 442 PM CDT THE MOBILE AND JACKSON RADARS INDICATED A SEVERE
THUNDERSTORM 5 MILES SOUTHWEST OF CAMP SHELBY MOVING TOWARD THE
EAST NORTHEAST AT 30 MPH.
CAMP SHELBY CAN EXPECT LARGE HAIL WITH THIS THUNDERSTORM.
A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. REMEMBER
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES
WITH LITTLE OR NO ADVANCE WARNING. REMAIN CALM BUT BE ALERT TO
RAPIDLY CHANGING WEATHER CONDITIONS.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, Apr 4, 11:16 AM CDT, 5 hours 30 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOBILE AL 1115 AM CDT TUE APR 4 1989 ...TORNADO WATCHES IN EFFECT FOR PORTIONS OF SOUTHWEST ALABAMA AND SOUTHEAST MISSISSIPPI UNTIL 500 PM TODAY... TORNADO WATCHES WERE ISSUED LATE THIS MORNING FOR THE CENTRAL AND SOUTHERN PORTIONS OF ALABAMA AND MISSISSIPPI. COUNTIES IN SOUTHEAST MISSISSIPPI INCLUDED IN THE WATCH ARE LAMAR...FORREST AND PERRY AND IN SOUTHWEST ALABAMA CLARKE COUNTY IS INCLUDED. WEATHER SERVICE RADARS INDICATE THAT THE SEVERE THUNDERSTORMS ARE NOW LOCATED FROM WEST-CENTRAL MISSISSIPPI TO NORTH ALABAMA. THE STORMS ARE EXPECTED TO MOVE EAST AND SOUTHEAST AND AFFECT THE WATCH AREA IN SOUTHEAST MISSISSIPPI AND SOUTHWEST ALABAMA THIS AFTERNOON. RESIDENTS OF THE COUNTIES IN THE WATCH AREA SHOULD BE ALERT TODAY AS THE THUNDERSTORMS MOVE TOWARD YOUR LOCATION.
Special weather statement, Apr 4, 1:29 PM CDT, 3 hours 17 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOBILE AL 130 PM CDT TUE APR 4 1989 ...TORNADO WATCHES IN EFFECT FOR PORTIONS OF SOUTHWEST ALABAMA AND SOUTHEAST MISSISSIPPI UNTIL 500 PM TODAY... TORNADO WATCHES WERE ISSUED LATE THIS MORNING FOR THE CENTRAL AND SOUTHERN PORTIONS OF ALABAMA AND MISSISSIPPI. COUNTIES IN SOUTHEAST MISSISSIPPI INCLUDED IN THE WATCH ARE LAMAR...FORREST AND PERRY AND IN SOUTHWEST ALABAMA CLARKE COUNTY IS INCLUDED. AT 125 PM CDT THE MOBILE RADAR INDICATED A STRONG THUNDERSTORM 10 MILES SOUTHWEST OF EVERGREEN IN CONECUH COUNTY ALABAMA. IT WAS MOVING TOWARD THE NORTHEAST AT 35 MPH AND WILL PASS NEAR EVERGREEN DURING THE NEXT 20 MINUTES. THE STORM IS CAPABLE OF PRODUCING STRONG GUSTY WINDS AND HAIL. RESIDENTS OF THE COUNTIES IN THE WATCH AREA SHOULD BE ALERT TODAY AS THE THUNDERSTORMS MOVE TOWARD YOUR LOCATION.
Special weather statement, Apr 4, 2:42 PM CDT, 2 hours 4 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE PENSACOLA FL 230 PM CDT TUE APR 4 1989 ..A TORNADO WATCH WILL BE IN EFFECT FOR PARTS OF THE FLORIDA PANHANDLE. A TORNADO WATCH FOR ESCAMBIA AND SANTA ROSA COUNTIES IS EFFECTIVE FROM 245PM TO 10PM CDT THIS TUESDAY EVENING. A NEARLY-SOLID LINE OF THUNDERSTORMS STRETCHED FROM SOUTHEAST AND EAST CENTRAL MISSISSIPPI ACROSS THE CENTRAL SECTIONS OF ALABAMA. THE LINE WS MOVING TO JTHE SOUTHEAST AT 15 TO 20 MILES AN HOUR. WIDELY SCATTERED THUNDERSTORMS WERE OVER COASTAL MISSISSIPPI AND OVER THE SOUTHEAST QUARTER OF ALABAMA. THESE STORMS WERE MOVING TO THE NORTHEAST AT 20 TO 25 MILES AN HOUR.
Special weather statement, Apr 4, 2:57 PM CDT, 1 hour 49 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOBILE AL 255 PM CDT TUE APR 4 1989 ...TORNADO WATCH NUMBER 91 IS NOW IN EFFECT FOR ALL PARTS OF SOUTHWEST ALABAMA SOUTHEAST MISSISSIPPI UNTIL 1000 PM... A TORNADO WATCH HAS NOW BEEN ISSUED THAT INCLUDES ALL COUNTIES IN SOUTHWEST ALABAMA AND SOUTHEAST MISSISSIPPI. THE WATCH IS IN EFFECT UNTIL 1000 PM. AT 250 PM THE MOBILE RADAR SHOWED A LINE OF SEVERE THUNDERSTORMS FROM NEAR LAUREL MISSISSIPPI NORTHEASTWARD INTO CENTRAL ALABAMA. THE LINE WAS MOVING TOWARD THE SOUTHEAST AT 25 MPH WHILE THE INDIVIDUAL STORMS WERE MOVING EAST AROUND 50 MPH. IF THE PRESENT MOVEMENT AND INTENSITY PERSISTS...WARNINGS WILL BE ISSUED FOR WASHINGTON AND CLARKE COUNTIES OF ALABAMA WITHIN THE NEXT HOUR. RESIDENTS OF SOUTHEAST MISSISSIPPI AND SOUTHWEST ALABAMA SHOULD REMAIN ALERT FOR WEATHER EVENTS THE AFTERNOON AND EVENING. THIS IS A STRONG WEATHER SYSTEM AND HAS A HIGH PROBABILITY OF PRODUCINuG SEVERE WEATHER.
The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 4, 3:30 PM CDT | Severe Thunderstorm Warning | MOB | Lamar | 45 min |
| Apr 4, 6:30 PM CDT | Severe Thunderstorm Warning | MOB | Greene | 60 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.