Alert archive / Alabama / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 64, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at Dec 15, 1987, 3:12 AM CST for Dallas County, Alabama. It was in force for 48 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
- Dec 15, 1987, 3:12 AM CST (09:12 UTC)
- Expired
- Dec 15, 1987, 4:00 AM CST
- In force
- 48 min
- Issued by
- NWS Mobile, AL
- Area
- Whole counties
County Dallas 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, 3:25 AM CST | Thunderstorm Wind 0 | Dallas, 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, 9.2 hours before the alert went out and 64 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 150912
SVRMGM
ALC047-151000-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MONTGOMERY AL
312 AM CST TUE DEC 15 1987
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING
EFFECTIVE UNTIL 400 AM CST FOR PEOPLE IN THE FOLLOWING COUNTY...
IN SOUTH ALABAMA
...DALLAS
AT 310 AM CST MONTGOMERY RADAR INDICATED A POSSIBLE SEVERE
THUNDERSTORM IN DALLAS COUNTY 10 MILES NORTHWEST OF SELMA.
THIS THUNDERSTORM SHOULD MOVE NORTH OF SELMA IN THE NORTHEAST
PORTION OF THE COUNTY.
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.
WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING. DO NOT STAND BY WINDOWS. DON'T USE TELEPHONES
OR ELECTRICAL APPLIANCES UNLESS IN AN EMERG.ENCY UNTIL THE STORM
HAS PASSED. MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.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, 2 hours 34 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, 2 hours 31 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, 1 hour 49 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, 1 hour 33 minutes 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, 43 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, 34 minutes 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.
The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 15, 3:39 AM CST | Severe Thunderstorm Warning | MOB | Autauga | 51 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.