Bizarre channel losses last night

[mrmike]

Last night I lost 1-1, 1-2, 12-1, 18-1 and 24-1 some time between noon and 7pm.  All of them.  This morning they're back just fine.  24-1 has become very blocky, like the signal is getting multipathed or is low.  I would have guessed that my antenna got shifted somehow except there wasn't any remarkable wind yesterday and most of the channels are back to normal this morning.  Any other brilliant ideas out there on what I could look at?

-MM

[John L]

Maybe the weather was a contributing factor?

I have to agree that it is very strange.

-John L.