Narrative:

Filed VFR flight plan to naples municipal (apf). In order to remain within us ADIZ the plan was to fly from ZZZ toward marathon; then north to cross over florida keys bay then direct to apf. Within minutes of takeoff I determined that weather (heavy rain showers) would not permit me to remain VFR unless I flew north immediately upon takeoff. Weather slowly pushed me west and it became apparent that I could not remain VFR within the us ADIZ. I exited the us ADIZ at approximately N25-30/W081-30. Attempts to contact an ATC facility failed due to heavy VHF traffic [and] due to hazardous weather in all miami center sectors. Without filing a DVFR; I re-entered us ADIZ at approximately N254339/W0814011. Root cause: poor situational awareness on enroute weather (departure field and apf were both clear and while foreflight weather brief did indicate thunderstorms and heavy rain showers east of my intended track; it appears the weather extended further west than forecast.) and failure to contact an ATC facility prior to approaching the us ADIZ.

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Original NASA ASRS Text

Title: AC11 pilot reported encountering weather enroute that forced him to exit and reenter US ADIZ airspace without a clearance.

Narrative: Filed VFR Flight plan to Naples Municipal (APF). In order to remain within US ADIZ the plan was to fly from ZZZ toward Marathon; then north to cross over Florida Keys Bay then direct to APF. Within minutes of takeoff I determined that weather (heavy rain showers) would not permit me to remain VFR unless I flew north immediately upon takeoff. Weather slowly pushed me west and it became apparent that I could not remain VFR within the US ADIZ. I exited the US ADIZ at approximately N25-30/W081-30. Attempts to contact an ATC facility failed due to heavy VHF traffic [and] due to hazardous weather in all Miami Center sectors. Without filing a DVFR; I re-entered US ADIZ at approximately N254339/W0814011. Root cause: Poor situational awareness on enroute weather (Departure field and APF were both clear and while ForeFlight weather brief did indicate thunderstorms and heavy rain showers EAST of my intended track; it appears the weather extended further west than forecast.) AND failure to contact an ATC facility prior to approaching the US ADIZ.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.