Alert archive / Alabama / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 65, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at Dec 15, 1987, 3:39 AM CST for Autauga County, Alabama. It was in force for 51 min. 2 reports 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
- Dec 15, 1987, 3:39 AM CST (09:39 UTC)
- Expired
- Dec 15, 1987, 4:30 AM CST
- In force
- 51 min
- Issued by
- NWS Mobile, AL
- Area
- Whole counties
County Autauga County, AL
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 |
|---|---|---|---|
| Dec 15, 3:50 AM CST | Thunderstorm Wind 60 | Autauga, AL | |
| Dec 15, 4:00 AM CST | Thunderstorm Wind 0 | Autauga, AL |
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
Centreville/Bibb, AL (KCKL), launched 00:00Z, 9.7 hours before the alert went out and 66 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 618 m above ground
- 0-6 km bulk shear
- 50 kt
- 0-1 km storm-relative helicity
- 115 m²/s²
- 0-3 km storm-relative helicity
- 348 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KMGM 150939
SVRMGM
ALC001-151030-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MONTGOMERY AL
339 AM CST TUE DEC 15 1987
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING
EFFECTIVE UNTIL 430 AM CST FOR PEOPLE IN THE FOLLOWING COUNTY...
IN SOUTH ALABAMA
...AUTAUGA
A SEVERE THUNDERSTORM WAS INDICATED BY RADAR NEAR AUTAUGAVILLE MOVING
TOWARD THE NORTHEAST AT 50 MPH AT 3 40AM CST.
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 QUGICKLY 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, 12:41 AM CST, 2 hours 58 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.
Local storm report, Dec 15, 1:23 AM CST, 2 hours 16 minutes before
ATTN SELS STORM REPORT NATIONAL WEATHER SERVICE MOBILE AL 120 AM CST TUE DEC 15 1987 THE MISSISSIPPI HIGHWAY PATROL REPORTED WIND DAMAGE TO POWER LINES NEAR PURVIS IN LAMAR COUNTY MISSISSIPPI CDURING THE PAST FEW MINTUES.
Special weather statement, Dec 15, 1:39 AM CST, 2 hours before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOBILE AL 140 AM CST TUE DEC 15 1987 ...TORNADO WATCH IN EFFECT FOR ALL OF SOUTHWEST ALABAMA UNTIL 600 AM...TORNADO WATCH NO LONGER IN EFFECT FOR ANY SOUTHEAST MISSISSIPPI COUNTY... ...THE SEVERE THUNDERSTORM WARNING FOR FORREST AND PEARL-RIVER COUNTIES IN MISSISSIPPI HAS BEEN CANCELLED... AT 135 AM THE MOBILE RADAR INDICATED A LINE OF STRONG THUNDERSTORMS OVER SOUTHEAST MISSISSIPPI FROM NEAR RICHTON ACROSS WIGGINS SOUTH TO THE COAST AT BAY ST LOUIS SOUTHWARD ACROSS THIS MISSISSIPPI DELTA. THE LINE WAS MOVING EAST AT 30 MPH WHILE THE INDIVIDUAL THUNDERSTORMS WERE RACING NORTHWARD AT 60 MPH. DUE TO THE RAPID MOVEMENT OF THESES THUNDERSTORMS...WARNINGS FOR SPECIFIC COUNTIES ARE DIFFICULT. RESIDENTS SHOULD REMAIN ALERT FOR THE APPROACH OF SEVERE WEATHER AND LISTEN FOR POSSIBLE WARNINGS.
Special weather statement, Dec 15, 2:29 AM CST, 1 hour 10 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOBILE AL 230 AM CST TUE DEC 15 1987 ...TORNADO WATCH NUMBER 566 REMAINS IN EFFECT FOR SOUTHWEST ALABAMA UNTIL 600 AM... AT 225 AM...THE MOBILE RADAR INDICATED A LINE OF STRONG THUNDERSTORMS ALONG A COLD FRONT FROM WESTERN WASHINGTON COUNTY ALABAMA SOUTHWARD TO NEAR LUCEDALE IN GEORGE COUNTY TO OCEAN SPRINGS AT THE COAST THEN SOUTH INTO THE GULF FOR MORE THAN 50 MILES. THE LINE WAS MOVING TOWARD THE EAST AT 30 MPH WHILE THUNDERTORMS WERE MOVING UP THE LINE AT 60 MPH. SEVERAL STRONG THUNDERSTORMS HAVE DEVELOPED DURING THE PAST HALF HOUR OVER MOBILE COUNTY AND RADAR INDICATES THEY ARE MOVING NORTHWARD AT 60 MPH. RESIDENTS OF SOUTHWEST ALABAMA SHOULD REMAIN ALERT FOR THE POSSIBILITY OF SEVERE WEATHER UNTIL THE WIND SHIFTS TO THE WEST AND THE TEMPERTURE BEGINS TO FALL.
Special weather statement, Dec 15, 2:38 AM CST, 1 hour 1 minute before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE PENSACOLA FL 235 AM CST TUE DEC 15 1987 THE TORNADO WATCH REMAINS IN EFFECT FOR ALABAMA UNTIL 6AM CST THIS MORNING. AT 230 AM CST...NUMEROUS SHOWERS AND SCATTERED THUNDERSHOWERS...SOME PRODUCING HEAVY RAINFALL...WERE OCASSIONALLY IN LINES AND CLUSTERS OVER THE WESTERN FLORIDA PANHANDLE AND SOUTHWEST ALABAMA. THE HEAVIEST THUNDERSHOWEWRS WERE PRESENTLY INDICATED IN ALABAMA FROM MOBILE BAY NORTHWARD ABOUT 50 MILES. MOVEMENTS WERE NORTHEAST ABOUT 55 MILES AN HOUR. A LINE OF STRONG THUNDERSTORMS WERE BEGINNING TO MOVE INTO SOUTHWEST ALABAMA AND TOWARD THE ALABAMA COASTAL WATERS. NUMEROUS THUNDERSTORMS WERE OCCURRING ALONG THE LINE AS IT MOVED EASTWARD AROUND 35 MILES AN HOUR.
Special weather statement, Dec 15, 3:17 AM CST, 22 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOBILE AL 315 AM CST TUE DEC 15 1987 ...TORNADO WATCH NUMBER 566 REMAINS IN EFFECT FOR SOUTHWEST ALABAMA UNTIL 600 AM... AT 310 AM...THE MOBILE RADAR INDICATED A LINE OF STRONG THUNDERSTORMS FROM SOUTHWEST CLARKE COUNTY SOUTH ACROSS CENTRAL MOBILE COUNTY IN ALABAMA WITH OTHER THUNDERSTORMS OVER BALDWIN...ESCAMBIA AND CONECUH COUNTIES. THE THUNDERSTORMS CONTINUED TO MOVE TOWARD THE NORTH AT 60 MPH WHILE THE LINE IS MOVING EAST AT 30 MPH. THE COLD FRONT PUSHING THE LINE OF THUNDERSTORMS IS EXPECTED TO CONTINUE MOVING EASTWARD ACROSS SOUTHWEST ALABAMA THIS MORNING. THE TEMPERATURE WILL FALL RAPIDLY AFTER THE WIND SHIFT AND THAT WILL END THE THREAT OF SEVERE WEATHER. STRONG GUSTY WEST TO NORTHWEST WINDS WILL OCCUR BEHIND THE COLD FRONT. THE TEMPERATURE AT THE MOBILE AIRPORT HAS FALLEN FROM 73 TO 60 DEGREES IN 25 MINUTES WITH WIND GUSTS OF 37 MPH. THE MOBILE POLICE DEPARTMEN0T REPORTED WIND DAMAGE TO A PATIO COVER IN THE PONDEROSA SUBDIVISION...ABOUT 5 MILES NORTH OF THE AIRPORT...ABOUT THE TIME OF THE WIND SHIFT. WINDS ESTIMATED AT 50 MPH OCCURRED IN THE AREA.
The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 15, 3:12 AM CST | Severe Thunderstorm Warning | MOB | Dallas | 48 min |
| Dec 15, 3:54 AM CST | Severe Thunderstorm Warning | MOB | Elmore | 66 min |
| Dec 15, 4:14 AM CST | Severe Thunderstorm Warning | MOB | Bullock | 61 min |
| Dec 15, 5:15 AM CST | Severe Thunderstorm Warning | MOB | Bullock, Pike | 45 min |
| Dec 15, 5:15 AM CST | Severe Thunderstorm Warning | MOB | Coffee | 45 min |
Nearby
Severe Thunderstorm Warnings in Alabama, 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.