This is short of a Severe Thunderstorm Warning. It is used to described some very strong thunderstorms, however:
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
458 PM CST TUE FEB 12 2008
ALZ015-023>025-034-122345-
BIBB-JEFFERSON-SHELBY-TUSCALOOSA-WALKER-
458 PM CST TUE FEB 12 2008
…SIGNIFICANT WEATHER ALERT FOR BIBB…JEFFERSON…SHELBY…
TUSCALOOSA AND WALKER COUNTIES UNTIL 545 PM CST…
AT 458 PM CST…NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM GORGAS TO TANNEHILL
IRONWORKS STATE PARK…OR ALONG A LINE EXTENDING FROM 10 MILES SOUTH
OF CORDOVA TO 13 MILES SOUTHWEST OF BESSEMER…MOVING EAST AT 35 MPH.
WINDS UP TO 40 MPH ARE EXPECTED WITH THESE STORMS.
* LOCATIONS IN OR NEAR THE PATH INCLUDE…
WELLER.
MCCALLA.
WEST JEFFERSON.
SUMITON.
SAYRE.
PARTRIDGE CROSSROADS.
STAY TUNED TO NOAA WEATHER RADIO…COMMERCIAL RADIO…OR YOUR LOCAL
TELEVISION STATIONS FOR LATER STATEMENTS AND POSSIBLE WARNINGS
CONCERNING THIS WEATHER SITUATION.