FAUS20 KZLA 031729 ZLA MIS 01 VALID 031730-040530 ...FOR ATC PLANNING PURPOSES ONLY... STRONG NORTHWEST AND NORTHEAST WINDS OVER THE MOUNTAINS OF SOUTHERN CALIFORNIA AND ADJACENT DOWNWIND DESERT AREAS WITH GUSTS UP TO 70 KNOTS MAY CAUSE OCCASIONAL SEVERE LOW-LEVEL TURBULENCE...STRONG UP- AND DOWNDRAFT...LOW-LEVEL WIND SHEAR AND MOUNTAIN WAVE ACTIVITY UNTIL 042000Z. =