Alert archive / Alabama / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 11, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at Mar 17, 1987, 11:55 PM CST for Mobile County, Alabama. It was in force for 55 min.
The area
The counties it named.
The facts
- Issued
- Mar 17, 1987, 11:55 PM CST (05:55 UTC)
- Expired
- Mar 18, 1987, 12:50 AM CST
- In force
- 55 min
- Issued by
- NWS Mobile, AL
- Area
- Whole counties
County Mobile County, AL
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, 5.9 hours before the alert went out and 190 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
Special weather statement, Mar 17, 8:00 PM CST, 3 hours 55 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOBILE, AL. 800 PM CST TUE MAR 17 1987 ...TORNADO WATCH NUMBER 34 IS IN EFFECT FOR SOUTHEAST MISSISSIPPI COUNTIES OF LAMAR..FORREST..PERRY..PEARL-RIVER..STONE AND HANCOCK UNTIL 10 PM... MOBILE RADAR AT 755 PM CST SHOWED THE LEADING EDGE OF THE VERY HEAVY THUNDERSTORMS ARE ENTERING THE WESTERN PART OF LAMAR AND PEARL-RIVER COUNTIES OF SOUTHEAST MISSISSIPPI. OTHER SHOWERS WERE SCATTERED OVER SOUTHEAST MISSISSIPPI AND THEIR COASTAL WATERS. THE STORMS WERE TRACKING TO THE NORTHEAST AT 50 MPH. RESIDENTS IN THE EFFECTED COUNTIES SHOULD BE ON THE LOOKOUT FOR CHANGING WEATHER AND BE PREPARED TO SEEK SAFE SHELTER IF SEVERE WEATHER IlS SIGHTED OR A WARNING IS ISSUED FOR YOUR LOCAL AREA. LISTEN TO NOAA WEATHER RADIO..COMMERICAL RADIO OR TV FOR LATER STATEMENTS ON THIS WEATHER PROBLEM AS IT TRACES EAST ACROSS THE AREA TONIGHT.
Local storm report, Mar 17, 10:12 PM CST, 1 hour 43 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, 1 hour 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, 31 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, 10 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.
The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 18, 1:32 AM CST | Severe Thunderstorm Warning | MOB | Mobile | 48 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 |
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; the sounding from the Mesonet's radiosonde archive.