Alert archive / Mississippi / Severe Thunderstorm Warnings in 1989
Severe Thunderstorm Warning 56, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at May 5, 1989, 6:28 AM CDT for Lamar County, Pearl River County, Mississippi. It was in force for 47 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
- May 5, 1989, 6:28 AM CDT (11:28 UTC)
- Expired
- May 5, 1989, 7:15 AM CDT
- In force
- 47 min
- Issued by
- NWS Mobile, AL
- Area
- Whole counties
Counties Lamar County, MS, Pearl River 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 |
|---|---|---|---|
| May 5, 6:45 AM CDT | Thunderstorm Wind 0 | Lamar, 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 00:00Z, 11.5 hours before the alert went out and 83 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
- 29 J/kg
- Mixed-layer CIN
- -221 J/kg
- Mixed-layer LCL
- 1010 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- -78 m²/s²
- 0-3 km storm-relative helicity
- 146 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.1
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KMOB 051129
SVRMOB
MSC073-109-051215-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
628 AM CDT FRI MAY 5 1989
THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 715 AM CDT
FOR PEOPLE IN THE FOLLOWING COUNTIES...
IN SOUTHEAST MISSISSIPPI
...LAMAR...PEARL.RIVER
AT 620 AM THE MOBILE RADAR INDICATED A LINE OF INTENSE THUNDERSTORMS
FROM 10 MILES WEST OF SUMRALL SOUTH SOUTHWEST ACROSS CENTRAL LAKE
PONCHARTRAIN IN LOUISIANA. THE LINE IS MOVING TOWARD THE EAST AT
55 MPH AND HAS PRODUCED DAMAGING WINDS ACROSS MUCH OF LOUISIANA.
RESIDENTS OF MOBILE HOMES IN THESE COUNTIES SHOULD RELOCATE TO
STRONGER STRUCTURES.
THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH YOU SHOULD
PREPARE FOR DAMAGING WIND IN EXCESS OF 55 MPH...LARGE HAIL...AND
DEADLY LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDEk A STRONG BUILDING BUT STAY AWAY FROM WINDOWS.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 5, 3:49 AM CDT, 2 hours 39 minutes before
SPECIAL WEATHER STATEMENT CORRECTION NATIONAL WEATHER SERVICE MOBILE AL 345 AM CDT FRI MAY 5 1989 ...TORNADO WATCH NUMBER 181 IS IN EFFECT FOR LAMAR COUNTY OF MISSISSIPPPI UNTIL 1000 AM CDT... A TORNADO WATCH THAT COVERS A LARGE PART OF LOUISIANA AND CENTRAL AND SOUTHERN MISSISSIPPI IS IN EFFECT UNTIL 1000 AM. THE ONLY COUNTY IN SOUTHEAST MISSISSIPPI INCLUDED IN THE WATCH IS LAMAR COUNTY. WEATHER SERVICE RADARS AT 330 AM SHOW INTENSE THUNDERSTORMS OVER WESTERN LOUISIANA MOVING RAPIDLY TO THE EAST. IN ADDITION...OTHER THUNDERSTORMS WERE MOVING INTO WEST CENTRAL MISSISSIPPI. THESE THUNDERSTORMS ARE LIKELY TO MOVE TOWARD LAMAR COUNTY AND ARRIVE AFTER DAYBREAK. RESIDENTS OF LAMAR COUNTY MISSISSIPPI SHOULD REMAIN ALERT FOR THE APPROACH OF THE THUNDERSTORMS THIS MORNING.
Special weather statement, May 5, 5:35 AM CDT, 53 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOBILE AL 535 AM CDT FRI MAY 5 1989 ...TORNADO WATCH NUMBER 181 IS IN EFFECT FOR LAMAR COUNTY OF MISSISSIPPPI UNTIL 1000 AM CDT... A TORNADO WATCH THAT COVERS A LARGE PART OF LOUISIANA AND CENTRAL AND SOUTHERN MISSISSIPPI IS IN EFFECT UNTIL 1000 AM. THE ONLY COUNTY IN SOUTHEAST MISSISSIPPI INCLUDED IN THE WATCH IS LAMAR COUNTY. WEATHER SERVICE RADARS AT 530 AM SHOWED A LINE OF VERY INTENSE AND RAPIDLY MOVING THUNDERSTORMS FROM NEAR JACKSON TO MCCOMB IN MISSISSIPPI EXTENDING SOUTHWARD ACROSS EAST CENTRAL LOUISIANA INTO THE GULF OF MEXICO. THIS LINE WAS MOVING TOWARD THE EAST AT 50 TO 60 MPH AND HAS PRODUCED SEVERE WEATHER. IF THE PRESENT MOVEMENT AND INTENSITY CONTINUES...A WARNING MAY BE REQUIRED IN LAMAR COUNTY BEFORE 700 AM. RESIDENTS OF ALL COUNTIES IN SOUTHEAST MISSISSIPPI SHOULD REMAIN ALERT FOR THE POSSIBLITY OF SEVERE WEATHER THIS MORNING. ALTHOUGH LAMAR IS) THE ONLY COUNTY PRESENTLY IN A WATCH...ADDITIONAL WATCHES MAY BE REQUIRED. THIS IS A POTENT AND RAPIDLY MOVING WEATHER SYSTEM. RESIDENTS OF SOUTHWEST ALABAMA SHOULD ALSO BE ALERT AS SEVERE WEATHER MAY MOVE INTO THE AREA LATER THIS MORNING.
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.