What part of Georgia are you located?
Here is a 6 page primer at Henry's that has good information on caring for baby squirrels if you have not found this yet. There is also list a temporary goat's milk formula that can be made from grocery store supplies but I strongly suggest you NOT add the egg yolk. I listed a version below sans egg yolk.... you can use this for a week or two under these storm circumstances.
https://www.henryspets.com/1-baby-squirrel-care-guide/
Goat's milk formula:
3 parts goat’s milk*
1 part heavy whipping cream
1 part vanilla yogurt
Formula will last 48 hours in refrigerator.
If you can order some Esbilac puppy milk replacer (the powdered version) and / or some Fox Valley 20/50 hopefully it can be delivered within a week or 2.
Kitten milk replacer is more likely than not to be a disaster as it is the wrong kind of protein and the wrong combination of nutrients. Kittens are carnivores and squirrels vegetarians for the most part. Even almost all of the puppy formulas don't meet a baby squirrel's needs and can result in diarrhea bloat, etc. If the kitten powder formula was previously opened and not stored in teh freezer (or at least the fridge) it has likely become rancid and will be too hard on a baby squirrel's system.
As far as bloat, diarrhea and other GI issues... that can easily be caused by the kitten formula. First, never feed a bloated baby. Infants Gas X (simethicone) can be very helpful eliminating the gas.
Another cause for bloat is failing to stimulate to potty regularly (before and after each feeding). Feeding too frequently... putting fresh formula on top of a lot of formula still still in the stomach.. can cause bloat.
I suggest giving small amounts of water (like 1/2ml) every half hour for a while waiting for the hydration to return and bloat to go away before giving any more formula.