What is your flea market's policy on weather related closings and refunds?

This won't matter much to those states where winter weather shuts down outdoor fleas for the entire season, but there are plenty of states where the winter weather doesn't close the market down totally.

So, the question is, if your market is generally open, what is it's policy regarding a temporary shutdown (for the day or weekend) because of weather (rain, wind, extreme heat in summer)?  I'll come back later with my info for my area. Got shutdown today because of rain (6/4/2011).

I just called the main gate at Canton First Monday Trade Days and asked if they have any shutdowns for bad weather, like tornadoes or rain.  And I didn't even finish the question before she said "no".