Normal afternoon thermal storms, those related to tropical systems and to cold fronts ( particularly further north in summer) are moving through. Lightning hazards go up in these fairly common systems this time of year. Just because you ignore an avoidable hazard, doesn't mean it will go away. Use common sense and take care out there.
Standup sessions can be peaceful but they will put you at risk in storms.
A few minutes later. Lightning was going off over both land and water within striking distance throughout the session.
This fellow wasn't struck fortunately but not for lack of trying.
NOAA comments on lightning awareness and precautions:
http://www.lightningsafety.noaa.gov/outdoors.htm
More photos from that session last week at:
http://fksa.org/showthread.php?p=45812#post45812