Alert archive / Mississippi / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 63, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at Dec 15, 1987, 12:58 AM CST for Forrest County, Pearl River County, Mississippi. It was in force for 47 min.
The area
The counties it named.
The facts
- Issued
- Dec 15, 1987, 12:58 AM CST (06:58 UTC)
- Expired
- Dec 15, 1987, 1:45 AM CST
- In force
- 47 min
- Issued by
- NWS Mobile, AL
- Area
- Whole counties
Counties Forrest 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.
The nearest sounding before it
Jackson, MS (KJAN), launched 00:00Z, 7.0 hours before the alert went out and 162 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
- 1492 J/kg
- Mixed-layer CIN
- -8 J/kg
- Mixed-layer LCL
- 820 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 176 m²/s²
- 0-3 km storm-relative helicity
- 253 m²/s²
- Significant tornado parameter
- 1.6
- Supercell composite
- 8.8
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KMOB 150658
SVRMOB
MSC035-109-150745-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
1258 AM CST TUE DEC 15 1987
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING
EFFECTIVE UNTIL 145 AM CST FOR PEOPLE IN THE FOLLOWING COUNTIES...
IN SOUTHEAST MISSISSIPPI
...FORREST...PEARL.RIVER
MOBILE RADAR AT 1255 AM CST SHOWED A SEVERE THUNDERSTORM NORTHEAST
PEARL-RIVER COUNTY MOVING NORTHEAST AT 60 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 BUSINESS4. 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, Dec 15, 12:38 AM CST, 20 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOBILE AL 1240 AM CST TUE DEC 15 1987 ...TORNADO WATCH IN EFFECT FOR ALL OF SOUTHWEST ALABAMA AND FORREST...LAMAR AND PERRY COUNTIES OF MISSISSIPPI... AT 1230 AM...WEATHER SERVICE RADARS INDICATED SEVERAL LINES OF THUNDERSTORMS DEVELOPING OVER SOUTHEAST MISSISSIPPI AND SOUTHWEST ALABAMA. THE STRONGEST STORMS WERE IN A LINE FROM JUST NORTH OF LAUREL SOUTHWEST TO 10 MILES WEST OF HATTIESBURG TO 5 MILES SOUTHWEST OF PICAYUNE IN MISSISSIPPI EXTENDING SOUTHWEST INTO LOUISIANA. THE LINE WAS MOVING TOWARD THE EAST AT 15 MPH WHILE INDIVIDUAL THUNDERSTORMS WERE MOVING NORTHWARD UP TO LINE AT 50 MPH. RESIDENTS OF LAMAR...FORREST AND PE RRY COUNTIES OF MISSISSIPPI SHOULD REMAIN ALERT AS THIS LINE OF THUNDERSTORMS APPROACHES. SEVERE WEATHER WARNINGS MAY BE ISSUED AT ANY TIME.
Special weather statement, Dec 15, 12:41 AM CST, 17 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE PENSACOLA FL 1235 AM CST TUE DEC 15 1987 A TORNADO WATCH HAS BEEN ISSUED FOR MOST OF ALABAMA UNTIL 6AM THIS MORNING. ALTHOUGH NO NORTHWEST FLORIDA COUNTIES HAVE BEEN INCLUDED IN THE WATCH AREA...NUMEROUS SHOWERS AND THUNDERSTORMS WILL BE MOVING THROUGH NORTHWEST FLORIDA FOR THE NEXT SEVERAL HOURS. THE THUNDERSTORMS COULD POSSIBLY BE SEVERE. PERSONS SHOULD KEEP UP WITH THE LATEST WEATHER REPORTS AND BE PREPARED TO TAKE PROTECTIVE ACTION IF THREATENING WEATHER DEVELOPES. AT 1230 AM CST...NUMEROUS SHOWERS AND DEVELOPING THUNDERSTORMS WERE IN SOUTHWEST ALABAMA...FROM MOBILE NORTHWARD...AND IN NEIGHBORING SOUTHEAST MISSISSIPPI. MOVEMENTS WERE NORTHEAST AT 50 TO 60 MILES AN HOUR.
Nearby
Severe Thunderstorm Warnings in Mississippi, 1987Every severe thunderstorm warning in 1987
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.