SR22 pilot reported deviation for weather and severe turbulence without ATC approval.

Attributes
ACN	1667570
Time
Date	201907
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	Mixed
Light	Daylight
Aircraft 1
Make Model Name	SR22
Operating Under FAR Part	Part 91
Flight Phase	Initial Approach
Route In Use	Direct
Flight Plan	IFR
Person 1
Function	Pilot Flying Single Pilot
Qualification	Flight Crew Instrument Flight Crew Private
Experience	Flight Crew Last 90 Days 50 Flight Crew Total 2100 Flight Crew Type 65
Events
Anomaly	Deviation - Procedural Clearance Deviation - Procedural Published Material / Policy Deviation - Procedural FAR Deviation - Track / Heading All Types Inflight Event / Encounter Weather / Turbulence

Narrative:

In route back to home airport ZZZ in aircraft X. Landed at ZZZ1 to let a line of storms pass then filed IFR to ZZZ. Opened IFR in air about 5 miles west of ZZZ1. I requested GPS into ZZZ with possible future request of a contact approach as another line of storms was moving into approach area of runway 5. Weather was scattered to broken 700 AGL at ZZZ with layer approximately 3;000 MSL. Multiple cells moving through today. I was cleared direct zzzzz to begin the GPS 5 approach into ZZZ. Controller never approved my contact approach request. While on a 240 heading in route to zzzzz I began to get in severe turbulence due to nearness of approaching storm and I turned right to a heading of approximately 360 which would intercept the FAF ZZZZZ1 vs. Flying full route into worsening weather without telling [ZZZ TRACON] why. I again requested a contact approach or vectors to final and did not receive either. I do not remember how exactly the rest of communication went with [ZZZ TRACON]. I was able to cancel approach from the air and land at ZZZ. I should have immediately told [ZZZ TRACON] I was deviating due to severe turbulence vs just requesting vectors to final or a contact approach.

Original NASA ASRS Text

Title: SR22 pilot reported deviation for weather and severe turbulence without ATC approval.

Narrative: In route back to home airport ZZZ in Aircraft X. Landed at ZZZ1 to let a line of storms pass then filed IFR to ZZZ. Opened IFR in air about 5 miles west of ZZZ1. I requested GPS into ZZZ with possible future request of a contact Approach as another line of storms was moving into approach area of runway 5. Weather was scattered to broken 700 AGL at ZZZ with layer approximately 3;000 MSL. Multiple cells moving through today. I was cleared direct ZZZZZ to begin the GPS 5 approach into ZZZ. Controller never approved my contact Approach request. While on a 240 heading in route to ZZZZZ I began to get in severe turbulence due to nearness of approaching storm and I turned right to a heading of approximately 360 which would intercept the FAF ZZZZZ1 vs. flying full route into worsening weather without telling [ZZZ TRACON] why. I again requested a contact Approach or vectors to final and did not receive either. I do not remember how exactly the rest of communication went with [ZZZ TRACON]. I was able to cancel approach from the air and land at ZZZ. I should have immediately told [ZZZ TRACON] I was deviating due to severe turbulence vs just requesting vectors to final or a contact approach.

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.