Alert archive / Alabama / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 12, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at Mar 18, 1987, 1:32 AM CST for Mobile County, Alabama; Jackson County, Mississippi. It was in force for 48 min.
The area
The counties it named.
The facts
- Issued
- Mar 18, 1987, 1:32 AM CST (07:32 UTC)
- Expired
- Mar 18, 1987, 2:20 AM CST
- In force
- 48 min
- Issued by
- NWS Mobile, AL
- Area
- Whole counties
Counties Mobile County, AL, Jackson 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
Boothville, LA (KBVE), launched 00:00Z, 7.5 hours before the alert went out and 168 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
- 937 J/kg
- Mixed-layer CIN
- -48 J/kg
- Mixed-layer LCL
- 541 m above ground
- 0-6 km bulk shear
- 57 kt
- 0-1 km storm-relative helicity
- 526 m²/s²
- 0-3 km storm-relative helicity
- 619 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 14.7
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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
Local storm report, Mar 17, 10:12 PM CST, 3 hours 20 minutes before
ATTN SELS STORM REPORT NATIONAL WEATHER SERVICE MOBILE AL 1010 PM CST TUE MAR 17 1987 AT 955 PM THE PEARL-RIVER SHERIFFS OFFICE REPORTED TREES AND POWER LINES DOWN AT CROSSROADS..6 MILES EAST OF BOGALOUSA LOUISIANA..IN THE WESTERN EXTREMITIES OF PEARL-RIVER COUNTY.. AT 1000 PM HANCOCK COUNTY SHERIFFS OFFICE ESTIMATED WINDS OF 50 MPH JUST NORTH OF TOWN..
Local storm report, Mar 17, 10:55 PM CST, 2 hours 37 minutes before
ATTN SELS STORM REPORT NATIONAL WEATHER SERVICE MOBILE AL 1055 PM CST TUE MAR 17 1987 HANCOCK COUNTY SHERIFFS OFFICE REPORTED THAT TREES WERE BLOWN DOWN IN WAVELAND..4 MILES SOUTHWEST OF BAY ST" LOUIS..AT 1040 PM. ALSO LIGHTNING STARTED A LARGE WOODS FIRE.
Local storm report, Mar 17, 11:24 PM CST, 2 hours 8 minutes before
ATTN SELS STORM REPORT NATIONAL WEATHER SERVICE MOBILE AL 1125 PM CST TUE MAR 17 1987 THE HARRISON COUNTY SHERIFFS OFFICE IN MISSISSIPPI REPORTED TREES DOWN JUST SOUTH OF LYMAN IN THAT COUNTY..77 MILES NORTH OF GULFPORT. TIME OF OCCURRENCE AROUND 1105 PM..
Local storm report, Mar 17, 11:45 PM CST, 1 hour 47 minutes before
ATTN SELS STORM REPORT NATIONAL WEATHER SERVICE MOBILE AL 1145 PM CST TUE MAR 17 1987 THE GEORGE COUNTY MISSISSIPPI SHERIFFS OFFICE REPORTED WIND DAMAGE TO A RESIDENCE IN SHIPMAN..ABOUT 8 MILESC SOUTHEAST OF LUCEDALE. TIME OF OCCURRENCE 1135 PM. THE EXTENT OF DAMAGE IS NOT KNOWN..BUT A SHERIFFS DEPUTY IS CHECKING IT NOW. REPORTED AS A POSSIBLE TORNADO.
Special weather statement, Mar 18, 12:40 AM CST, 52 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOBILE AL 1240 AM CST WED MAR 18 1987 ...A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 AM CST FOR MUCH OF SOUTHWEST ALABAMA AND SOUTHEAST MISSISSIPPI... AT 1235 AM THE MOBILE RADAR SHOWED A NEARLY SOLID LINE OF THUNDERSTORMS EXTENDING FROM NEAR CITRONELLE ALABAMA TO BILOXI MISSISSIPPI AND INTO THE GULF TO JUST WEST OF THE CHANDELEUR ISLANDS. THIS LINE OF THUNDERSTORMS HAS BEEN PRODUCING WIND GUSTS TO OVER 50 MPH, VERY HEAVY RAINFALL, AND FREQUENT LIGHTNING. THE LINE IS MOVING TO THE EAST AT AROUND 20 MPH AND WILL BRING THE POSSIBILITY OF DAMAGING WINDS INTO MUCH OF SOUTHWEST ALABAMA DURING THE NEXT FEW HOURS. STAY TUNED TO -NOAA WEATHER RADIO FOR THE LATEST WEATHER BULLETINS.
Special weather statement, Mar 18, 12:40 AM CST, 52 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE PENSACOLA FL 1235PM CST MON MAR 18 1987 ...THUNDERSTORMS OVER SOUTHEAST MISSISSIPPI AND THE COASTAL WATERS MOVING TOWARD THE MOBILE AND PENSACOLA AREAS... AT 1230 AM CST...SCATTERED VERY HEAVY THUNDERSTORMS WERE PART OF A LARGE RAIN AREA SOUTHWEST...WEST AND NORTH OF PENSACOLA. THE HEAVIEST THUNDERSTORMS WERE OCCURRING FROM SOUTH WASHINGTON COUNTY OF ALABAMA SOUTH TO BILOXI ,MISSISSIPPI. THE LARGE RAIN AREA COVERED MOST OF SOUTHEAST MISSISSIPPI...SOUTHWEST ALABAMA...THE PENSACOLA AREA OF FLORIDA AND THE ADJACENT COASTAL WATERS. THUNDERSTORMS WERE MOVING RAPIDLY NORTHEAST WHILE THE AREA SPREAD SLOWLY EAST.
The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 17, 11:55 PM CST | Severe Thunderstorm Warning | MOB | Mobile | 55 min |
| Mar 18, 2:22 AM CST | Tornado Warning | MOB | Baldwin | 58 min |
| Mar 18, 3:30 AM CST | Severe Thunderstorm Warning | MOB | Baldwin | 60 min |
| Mar 18, 3:47 AM CST | Flash Flood Warning | MOB | Mobile | 2 hr |
| Mar 18, 5:05 AM CST | Severe Thunderstorm Warning | MOB | Conecuh, Escambia | 60 min |
| Mar 17, 9:45 PM CST | Severe Thunderstorm Warning | MOB | Hancock, Pearl River | 60 min |
| Mar 17, 10:25 PM CST | Flash Flood Warning | MOB | Forrest, Perry | 3 hr |
| Mar 17, 10:30 PM CST | Severe Thunderstorm Warning | MOB | Harrison, Stone | 45 min |
| Mar 17, 11:30 PM CST | Severe Thunderstorm Warning | MOB | George, Jackson | 60 min |
Nearby
Severe Thunderstorm Warnings in Alabama, 1987Severe 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.