Narrative:

Earlier in the day the ceilings were about 3;500 to 4;000 ft so I decided to make the return trip VFR with flight following and stay under the 3;000 ft floor of the bravo [airspace] since that is what ATC would have me do had I filed. All was well until I reached the shoreline. I was at 2;700 ft and was cleared by approach through the class D at or above 2;500 ft; but had to stay below the bravo at 3;000 ft. As I reached land the ceiling descended to just about 2;700 or 2;800 ft; so I descended to 2;500 ft but that still put me through the base of the clouds. Then ATC warned me about traffic ahead on a missed [approach] and suddenly I found myself trapped in and out of the clouds; unable to descend without busting the delta airspace. Meanwhile I could not see the traffic which was being called out by the traffic warning system as straight ahead. I was able to turn into clear weather away from the traffic but busted VFR minimums and descended into the top 100 feet of the delta [airspace]. I should have monitored the ATIS while I was over the ocean and asked for a clearance when it was clear that I could not maintain VFR minimums or circled when the weather closed in and asked for a clearance. Next time I will get the clearance first and cancel if the weather accommodates.

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Original NASA ASRS Text

Title: An SR-22 pilot on a VFR flight found himself between a cloud layer above and Class D airspace below and with unseen traffic ahead. Pilot was eventually able to reach VMC conditions; but not before violating the airspace and cloud clearance criteria.

Narrative: Earlier in the day the ceilings were about 3;500 to 4;000 FT so I decided to make the return trip VFR with Flight Following and stay under the 3;000 FT floor of the Bravo [airspace] since that is what ATC would have me do had I filed. All was well until I reached the shoreline. I was at 2;700 FT and was cleared by Approach through the Class D at or above 2;500 FT; but had to stay below the Bravo at 3;000 FT. As I reached land the ceiling descended to just about 2;700 or 2;800 FT; so I descended to 2;500 FT but that still put me through the base of the clouds. Then ATC warned me about traffic ahead on a missed [approach] and suddenly I found myself trapped in and out of the clouds; unable to descend without busting the Delta airspace. Meanwhile I could not see the traffic which was being called out by the traffic warning system as straight ahead. I was able to turn into clear weather away from the traffic but busted VFR minimums and descended into the top 100 feet of the Delta [airspace]. I should have monitored the ATIS while I was over the ocean and asked for a clearance when it was clear that I could not maintain VFR minimums or circled when the weather closed in and asked for a clearance. Next time I will get the clearance first and cancel if the weather accommodates.

Data retrieved from NASA's ASRS site as of July 2013 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.