Blushing could be an issue. Really try to find a day with low humidity if you are using outside air.
Also, taking a cool body (inside air conditioned) into a hot humid environment could really compound things (condensation).
It can get pretty humid in MD too, and I have had blushing issues in the summer. Fall is nice and dry.
Climate controlled with a large vent to the outside can work, till you blow all the climate controlled air out the window.
Hopefully enough to at least get it touch dry, though.
Thin coats will also help. May want to keep some "Blush Out" handy, it really works.
Also, add some retarder to you mix if you are using spray equipment.
Even a Preval unit, which would allow you to add retarder, will spray as well as your standard aerosol can.
A Preval with a 50% Lacquer 25% Retarder, 25% Lacquer Thinner mixture, sprayed in thin coats...
Good Luck,
James