SMT PLT ENCOUNTERED STRONG WINDS PENETRATED TCA.

Narrative

WINDS AT THE TIME OF DEP FROM ONT WERE 040 DEGS AT 25 KTS; GUSTING TO 35 KTS (SANTA ANA CONDITION). I WAS EXPERIENCING MODERATE TO SEVERE TURB ON CLBOUT; AS WELL AS STRONG UP/DOWN DRAFTS AND WIND SHEAR OF +25 KTS/-15 KTS. OTHER ACFT ON FREQ WERE RPTING THE SAME; INCLUDING AN LGT 5-7 NM S OF CABLE ARPT; WHILE CLIMB OUT OF 7000' MSL. KNOWING CABLE WAS NEAR THE MOUNTAINS' BASES; I STEERED SLIGHTLY FARTHER LEFT OF MY W HDG IN AN EFFORT TO REMAIN CLR OF THE WORST TURB. AN ERROR ON MY PART WAS FORGETTING THE NE WINDS WOULD CAUSE ME TO DRIFT TO THE SW; ANYWAY. AS RADAR SVC WITH ONT DEP WAS TERMINATED; A CENTER FREQ WAS SUGGESTED; BUT PRECAUTIONARY STATEMENT WAS ISSUED WITH REGARD TO MY PROX TO THE LA TCA. (I REALIZE THIS IS NOT REQUIRED OF ATC.) UPON CONTACTING ZLA (128.20) AND IDENTING ON A NEW XPONDER CODE; I WAS ADVISED OF MY POS INSIDE THE TCA AND WAS GIVEN A RIGHT TURN OF 30 DEGS TO CLR THE AIRSPACE. THIS INCIDENT; I FEEL; RESTS COMPLETELY WITHIN THE REALM OF MY RESPONSIBILITY. OUT OF HABIT FROM DEPARTING ONT ON CLR; SMOOTH MORNINGS VFR AND PROCEEDING NW TOWARD MT WILSON AND THEN ON TO LAKE HUGHES. I NEGLECTED TO PROPERLY IDENT THE BOUNDARIES OF THE TCA AND REMAIN CLR--A SHARP REMINDER TO NOT BECOME COMPLACENT IN MY PREFLT/FLT PLANNING ACTION. MY ONLY AIRSPACE SUGGESTION IS: DUE TO THE PROX OF THE SAN GABRIEL MOUNTAINS AND THE LIKELIHOOD OF SANTA ANA WINDS; PERHAPS THE SEGMENT OF THE TCA FORMED BY THE PDZ 273 DEG R COULD EXTEND ALL THE WAY TO THE 25 NM ARC OF THE LAX VORTAC OR CONTINUE THE POM 251 DEG R TO THE LAX 15 NM ARC TO BE JOINED BY THE VNY 107 DEG R AND ELIMINATE THE PDZ 273 DEG COMPLETELY MORE ROOM TO MANEUVER S OF MT WILSON. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING: HDG CHANGE TO AVOID TURB ALONG BASE OF MOUNTAINS PLUS STRONG SANTA ANA WINDS CAUSED ENOUGH DRIFT TO CREATE TCA PENETRATION. NO FAA FOLLOW-UP.