Small Aircraft; High Wing; 1 Eng; Retractable Gear
Flight Crew Instrument; Flight Crew Private
Flight Crew Last 90 Days 26; Flight Crew Total 1000; Flight Crew Type 970
Communication Breakdown; Confusion; Situational Awareness
ATC Issue All Types; Airspace Violation All Types; Deviation - Track / Heading All Types; Deviation / Discrepancy - Procedural Clearance; Deviation / Discrepancy - Procedural Published Material / Policy; Inflight Event / Encounter Weather / Turbulence
Flight Crew Returned To Clearance
Human Factors; Weather; Procedure
Departed TMB VFR on a 270 degree course. When about half a mile west on the field; tower notified me of serious weather conditions two miles west of the field. I was offered the option of a left 270 degree turn; altitude of 1;500 feet MSL which I accepted. This placed me on a 360 degree heading. When about two to three miles north of TMB; on a 360 degree heading; tower gave me a Miami frequency for 'traffic advisories' and frequency change was approved.I continued on a 360 degree heading which enabled me to avoid storm cells which were immediately to my left and right. Shortly after this radio communication; I found myself within the west approach corridor of MIA. I did not request clearance from Miami Approach for the following reasons: the tower (which on the Miami sectional appears to be in bravo airspace) had given me a vector and altitude; had not suggested that any further clearance was required. Adverse weather conditions surrounding me were severe and the only safe course was to continue north.
Pilot reports of being issued a heading and altitude by Tower Controller to avoid weather. Controller gave pilot a frequency to change to for 'Traffic Advisories.' Pilot did not call the new frequency because he thought he did not need to since the tower had issued a heading and altitude for weather avoidance.