Alert archive / Alabama / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 35, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at Jul 11, 1987, 6:15 PM CDT for Mobile County, Alabama. It was in force for 45 min.
The area
The counties it named.
The facts
- Issued
- Jul 11, 1987, 6:15 PM CDT (23:15 UTC)
- Expired
- Jul 11, 1987, 7:00 PM CDT
- In force
- 45 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 12:00Z, 11.3 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
- 1188 J/kg
- Mixed-layer CIN
- -64 J/kg
- Mixed-layer LCL
- 943 m above ground
- 0-6 km bulk shear
- 8 kt
- 0-1 km storm-relative helicity
- -7 m²/s²
- 0-3 km storm-relative helicity
- -6 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KMOB 112318 SVRMOB ALC097-120000- BULLETIN..IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MOBILE AL 615 PM CDT SAT JUL 11 1987 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 700 PM CDT FOR THE FOLLOWING COUNTY IN ALABAMA... ...MOBILE AT 610 PM PUBLIC REPORTS 55 TO 60 MPH WINDS AND PEA SIZE HAIL IN THE DAWES COMMUNITY...8 MILES SOUTH OF THE MOBILE AIRPORT. NUMEROUS LARGE TREE LIMBS WERE BLOWN DOWN. THESE THUNDERSTORMS ARE LIKELY TO PRODUCE DAMAGING WINDS. PERSONS IN SOUTHWEST MOBILE COUNTY SHOULD SEEK SHELTER AS THE THUNDERSTORMS APPROACH.
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, Jul 11, 5:35 PM CDT, 40 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOBILE AL 535 PM CDT SAT JUN 11 1987 ...A FEW STRONG THUNDERSTORMS IN PROGRESS OVER MOBILE COUNTY ALABAMA AND IN SOUTHEAST MISSISSIPPI... WEATHER SERVICE RADARS IN THE PAST FEW MINTUES INDICATED A FEW STRONG THUNDERSTORMS DEVELOPING RAPIDLY OVER THE SOUTHERN AND WESTERN PORTION OF MOBILE COUNTY AND IN GEORGE...JACKSON AND HANCOCK COUNTIES OF SOUTHEAST MISSISSIPPI. THEY WERE DRIFTING SLOWLY WEST. THESE THUNDERSTORMS WILL PRODUCE DANGEROUS LIGHTNING...STRONG GUSTY WINDS...HEAVY RAINFALL AND POSSIBLY SOME HAIL AS THEY CONTINUE FOR THE NEXT HOUR OR TWO. THEY ARE EXPECTED TO DIMINISH AFTER DARK. RESIDENTS SHOULD BE ALERT FOR THESE THUNDERSTORMS AND WAIT UNTIL THEY HAVE PASSED BEFORE RESUMING OUTDOOR ACTIVITIES.
Special weather statement, Jul 11, 5:39 PM CDT, 36 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOBILE AL 535 PM CDT SAT JUL 11 1987 ...A FEW STRONG THUNDERSTORMS IN PROGRESS OVER MOBILE COUNTY ALABAMA AND IN SOUTHEAST MISSISSIPPI... WEATHER SERVICE RADARS IN THE PAST FEW MINUTES INDICATED A FEW STRONG THUNDERSTORMS DEVELOPING RAPIDLY OVER THE SOUTHERN AND WESTERN PORTION OF MOBILE COUNTY AND IN GEORGE...JACKSON AND HANCOCK COUNTIES OF SOUTHEAST MISSISSIPPI. THEY WERE DRIFTING SLOWLY WEST. THESE THUNDERSTORMS WILL PRODUCE DANGEROUS LIGHTNING...STRONG GUSTY WINDS...HEAVY RAINFALL AND POSSIBLY SOME HAIL AS THEY CONTINUE FOR THE NEXT HOUR OR TWO. THEY ARE EXPECTED TO DIMINISH AFTER DARK. RESIDENTS SHOULD BE ALERT FOR THESE THUNDERSTORMS AND WAIT UNTIL THEY HAVE PASSED BEFORE RESUMING OUTDOOR ACTIVITIES.
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.