AFTER TKOF; BALLOON PLT DETERMINES WINDS WILL TAKE BALLOON FURTHER INTO CLASS B AIRSPACE AND TAKES ACTION TO IMMEDIATELY LAND ACFT.

Narrative

I WAS CONDUCTING A PAX FLT AS PIC. AFTER COLLECTING FLT SVC DATA AND READING OF TEST HELIUM BALLOONS; I EXPECTED T0 FLY IN THE DIRECTION OF 255-260 DEGS; TOWARDS SUITABLE LNDG AREAS. UPON TKOF; THE WINDS HAD SHIFTED TO 275-280 DEGS; AND I WAS HEADING TOWARDS INACCESSIBLE TERRAIN. AFTER ATTEMPTING TO CORRECT DIRECTION BY USING THE TERRAIN AND VALLEY FLOW; I HAD NO ACTION REMAINING BUT TO FLY ON TO THE HORSEMAN'S CANYON AREA; S OF RANCHO PENNASQUITOS. I ATTEMPTED A LNDG THERE; BUT ANOTHER BALLOON WAS DIRECTLY IN MY FLT PATH; WHO HAD LANDED THERE ONLY MINS PREVIOUSLY. I HAD NO CHOICE BUT TO OVERFLY AND ENTER THE EDGE OF MIRAMAR'S CLASS B AIRSPACE AND LAND AS SOON AS POSSIBLE. I HAD NO TIME TO CONTACT THE TWR BEFORE I TOUCHED DOWN. LOOKING BACK; THE ONLY CORRECTABLE ACTION I COULD SEE WAS TO LAND IMMEDIATELY AFTER TKOF; OR TO CHOOSE A MORE PROPER LAUNCH SITE; WHICH WOULD ALLOW FOR VARIATIONS IN WIND DIRECTION. SAN DIEGO IS RAPIDLY CLOSING UP DUE TO DEVELOPMENT; MAKING LAUNCH SITE SELECTIONS EVEN MORE CRITICAL.