A six pack of Lucky lager and a walk on the docks to chat with the charter skippers will get you tips on whats going on inshore and offshore. Plan to spend some money in Pioneer Boat works and they'll let you bring in your charts of the area and mark down all of the popular banks offshore: inside and outside South bank, adipose, Hyson, Starfish, Longbeach, Lighthouse, Big Bank, Rats Nose, etc.
For inside Barkley Sound, the Salmon University site does a pretty good job, with a pretty detailed overview of the main locations. Certainly doesn't cover all spots but more than enough to give you lots of options and get started learning the Sound.
http://www.salmonuniversity.com/vis_barkley_sound.html
Fog usually isn't a problem in June like it is in late July and August but it can be. Has been very windy last few Junes, I'm hoping it's not this year as drifting the banks with bait on the bottom near edges and contours definitely yields a better grade of halibut than what you typically get on the troll targeting springs and hali. Offshore trolling our program is both balls in the mud then back up a couple of feet but dropping every so often to make sure you are close to the mud. Depending on action on bottom, or if marking bait or fish up in the column we may fish anywhere from 80-bottom with the second rigger. Inside the Sound, bait balls determine our depth but typical rigger depths are 80-150 in 100-200ft of water, though we will fish some tacks in tight to a few rocks, points and kelp beds. Coho seem to show up in big schools inside in June, there one week gone the next. Typically find them further out in more open water then you fish springs with depths from the surface down to 100ft. Look for jumpers and fish the tide lines you'll see. I typically don't use bait in Ukee. Flasher and hootchie on one side (octopus and needlefish in purple haze, glo army truck, glo green splatter back and a few others) and dummy flasher and spoon on other (coyotes, coho killers and kingfishers in 3.0 to 4.0 irish creme, green/glo, cop car glo, kitchen sink, etc). If one is slamming them we double up. Last year lots of squid inside so a hooch close to an army truck variant with brown, orange and glo was very good. Also be trying the Andrew P and Nogs Needle spoons this year.
That should give you a start. Beautiful place and great fishing!
Cheers!
Ukee