heavy weight turnouts not keeping horses warm

Re-waterproofing them would help a lot. Until you can, adding a waterproof sheet over them should do the trick. That should lock in more warm air and prevent too much "breathability" for wind to get through. Or you could add a medium-weight turnout over the top.

And I agree with above, keep them heating from the inside. Give them free choice hay, or as near to that as possible. You want hay available to them 20-22 hours a day. The hind gut creates heat as it digests the long stem fiber in the hay.

Good that you have hay. Adding a second turnout over the top will block the wind better and trap in more heat. Just something to consinder.

I have said almost my whole life, you won't catch me living north of the Mason Dixon line . I grew up in San Diego, so Arkansas winters are even tough on me, and the coldest we usually get is single digits, and that's not often! We can go from lows in the upper teens to highs in the mid-60s pretty easily all winter long. Two winters ago I was wearing short sleeves on New Years; it's was 70 degrees!!! It's becase the jet stream likes to dance around us, so here in Little Rock (central AR) we never know if it's going to dip down and bring Northern cold air or stay above us and bring in Southern warm air... I look at the weather forecast almost daily!!!

Ok the blankets are still water proof they are shedding water off,but I do plan on re water proofing them this spring. Iam getting blanket liners plus medium weight turnouts to put over the blankets they have now so there goes 200$ dollars on blankets and liners,i got them on a mid winter sale. I spend more money on my horses then myself but they are my babys and they get only the best care I can afford.spirit88