Granted, I'm only looking at one mainline fleet/base, but I saw way more short call reserve today than we normally see on a Tuesday with no weather.

Short Call for us is "promptly available" so 2-3 hours max to airport via ground transport. Granted in NYC this is to the closest to you aiport but still.

Normally, 1-2 a day..Rarely more than 4, even with weather. I saw 8 today on my fleet from 0300 through 2100 tonight.

They are contractually limited on how many times a month they can put you on short call (5-7 normally) so if they keep this up by Thanksgiving they will be low on short call ability.