Cessna 150 student pilot reported class B airspace violation due to turbulence.

Attributes
ACN	1684981
Time
Date	201909
Local Time Of Day	1201-1800
Place
Locale Reference	BWI.Tower
State Reference	MD
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Cessna 150
Operating Under FAR Part	Part 91
Flight Phase	Cruise
Route In Use	None
Flight Plan	VFR
Person 1
Function	Pilot Flying Single Pilot
Qualification	Flight Crew Student
Experience	Flight Crew Last 90 Days 17 Flight Crew Total 203 Flight Crew Type 199
Events
Anomaly	Airspace Violation All Types Deviation - Altitude Overshoot Deviation - Procedural Published Material / Policy Inflight Event / Encounter Weather / Turbulence

Narrative:

Enroute from sfra paleo gate to tipton airport fme; at 1400 ft. MSL; below the 1500 ft. Bwi bravo floor. Turbulence increased significantly enroute from the shoreline to fme and caused my aircraft to briefly ascend into bravo airspace and back down. Potomac [approach] contacted me on 132.77 and indicated that I had popped up into the bravo and back down. I apologized. The controller indicated it he understood; but advised me to remain clear of the bravo. My altimeter setting was consistent with the setting I received on entering the paleo gate. I believe it was 30.11. I descended to 1300 ft. MSL to avoid repeating the incident. I continued the flight to fme and landed without further incident.

Original NASA ASRS Text

Title: Cessna 150 Student Pilot reported Class B airspace violation due to turbulence.

Narrative: Enroute from SFRA Paleo Gate to Tipton Airport FME; at 1400 ft. MSL; below the 1500 ft. BWI Bravo floor. Turbulence increased significantly enroute from the shoreline to FME and caused my aircraft to briefly ascend into Bravo airspace and back down. Potomac [Approach] contacted me on 132.77 and indicated that I had popped up into the Bravo and back down. I apologized. The Controller indicated it he understood; but advised me to remain clear of the Bravo. My altimeter setting was consistent with the setting I received on entering the Paleo Gate. I believe it was 30.11. I descended to 1300 ft. MSL to avoid repeating the incident. I continued the flight to FME and landed without further incident.

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.