Alert archive / Alabama / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 69, NWS Birmingham, AL
NWS Birmingham, AL issued this severe thunderstorm warning at Sep 10, 1987, 6:40 PM CDT for Jefferson County, Alabama. It was in force for 50 min.
The area
The counties it named.
The facts
- Issued
- Sep 10, 1987, 6:40 PM CDT (23:40 UTC)
- Expired
- Sep 10, 1987, 7:30 PM CDT
- In force
- 50 min
- Issued by
- NWS Birmingham, AL
- Area
- Whole counties
County Jefferson 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
Centreville/Bibb, AL (KCKL), launched 12:00Z, 11.7 hours before the alert went out and 78 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
- 1134 J/kg
- Mixed-layer CIN
- -41 J/kg
- Mixed-layer LCL
- 973 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 35 m²/s²
- 0-3 km storm-relative helicity
- 56 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 KBHM 102340
SVRBHM
ALC073-110030-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
640 PM CDT THU SEP 10 1987
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING
EFFECTIVE UNTIL 730 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTY...
IN NORTH ALABAMA
...JEFFERSON
AT 640 PM A SEVERE THUNDERSTORM WAS LOCATED ABOUT 17 MILES WEST OF
THE BIRMINGHAM METRO AREA AND MOVING TO THE EAST NORTHEAST AROUND 20
MPH.
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.6 HEAVY RAINS FLOOD ROADS QUICKLY 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, Sep 10, 2:54 PM CDT, 3 hours 46 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BIRMINGHAM AL 251 PM CDT THU SEP 10 1987 STRONG THUNDERSTORMS MOVING INTO WESTERN ALABAMA. AT 250 PM STRONG THUNDERSTORMS PRODUCING FREQUENT LIGHTNING... HEAVY RAINFALL...AND STRONG WINDS WERE LOCATED IN EXTREME EASTERN MISSISSIPPI NEAR MACON MISSISSIPPI MOVING INTO PICKENS COUNTY...AND 15 MILES WEST OF HAMILTON MOVING INTO MARION COUNTY. PERSONS IN PICKENS AND MARION COUNTIES SHOULD BE ALERT FOR POSSIBLE THREATENING WEATHER CONDITIONS AS THESE STORMS MOVE TO THE EAST- NORTHEAST AT 20 MILES AN HOUR. OTHER THUNDERSTORMS PRODUCING LOCALLY HEAVY RAINFALL WERE LOCATED NEAR ALEXANDER CITY IN TALLAPOOSA COUNTY AND NEAR JASPER IvN WALKER COUNTY.
Special weather statement, Sep 10, 3:53 PM CDT, 2 hours 47 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BIRMINGHAM AL 350 PM CDT THU SEP 10 1987 STRONG THUNDERSTORMS OVER NORTHWEST ALABAMA. AT 350 PM A STRONG THUNDERSTORM PRODUCING FREQUENT LIGHTNING... HEAVY RAINFALL...AND POSSIBLY STRONG WINDS WAS LOCATED IN MARION COUNTY NEAR THE TOWN OF HAMILTON. PERSONS IN MARION COUNTY SHOULD MOVE INDOORS AS THIS STORM CAN PRODUCE FREQUENT DEADLY LIGHTNING AS WELL AS LOCALLY HEAVY RAINFALL. THE THUNDERSTORM WAS MOVING TO THE NORTHEAST AT 20 MILES AN HOUR AND WILL BE AFFECTING MARION AND WESTERN WINSTON COUNTIES UNTIL 430 PM. OTHER THUNDERSTORMS PRODUCING LOCALLY HEAVY RAINFALL WERE LOCATED NEAR SPRINGVILLE IN ST CLAIR COUNTY AND IN SOUTHERN RANDOLPH COUNTY. THE THUNDERSTORM THAT WAS NEAR ALICEVILLE IN PICKENS COUNTY HAS DISSIPATED INTO A LIGHT RAIN SHOWER.
Special weather statement, Sep 10, 5:41 PM CDT, 59 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BIRMINGHAM AL 540 PM CDT THU SEP 10 1987 ...STRONG THUNDERSTORMS OVER CENTRAL ALABAMA... AT 540 PM A STRONG THUNDERSTORM PRODUCING FREQUENT LIGHTNING... HEAVY RAINFALL...AND POSSIBLY STRONG WINDS WAS LOCATED IN NORTHERN TALLADEGA AND SOUTHWESTERN CALHOUN COUNTIES. THE THUNDERSTORM WAS MOVING TO THE NORTHEAST AT 20 MPH AND WILL BE AFFECTING AREAS WEST AND NORTHWEST OF ANNISTON. OTHER THUN$DERSTORMS PRODUCING LOCALLY HEAVY RAINFALL WERE LOCATED AROUND JEMISON IN CHILTON COUNTY AND IN WALKER COUNTY AROUND THE CARBON HILL AREA. IN ADDITION...A NEW STORM WAS BEGINNING TO FORM TO THE WEST OF CULLMAN.
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.