I have a 15 year old with a good winter coat. It’s typically doesn’t get much below 30 degrees here. He is kept outside 24/7 in a large field with three other horses, with plenty of hay (round bale in the winter), and a run-in. It’s supposed to be extremely windy here in two days, with a wind-chill of -12. This is highly unusual for this area. Would it be okay to blanket for ONLY that one 36-hour period of time? Or will this mess up their natural ability to stay warm? Any help is appreciated?