Help me find a suitable blanket:

Please excuse this idiot question -- I don't normally clip or blanket, but my mare is miserable. I've been grooming her daily and trying to remove as much of her shedding coat as I can using a shedding blade, but she's so itchy. I've bathed her, thinking the itchiness was caused by deep-down dirt and dander, but nope... still itchy. My next option is to clip her.

However, she is an outdoor horse in Alberta. Temperatures in Edmonton are hovering around the 0*C mark, but drop down to -10*C or so on some days. It's not cold enough for a heavy winter blanket, but definitely not warm enough to send her out naked... is it possible to buy just one blanket to use on her from now until spring shows up and brings nicer weather?

Someone recommeded a stable sheet, but that seems a little too light. I was looking at waterproof turnout blankets or lightweight winter blankets. What would you recommend? What fill should I look for?

Since she is turned out 24/7 the most important thing to look for is that the blanket/sheet you are going to get is waterproof/breathable. You could get a medium weight/lightweight blanket, a between seasons weight. It might get too warm on those warmer sunny spring days though.

I think the best option would be to get a waterproof/breathable turnout sheet and a lightweight stable sheet or lightweight fleece sheet and layer it underneath the turnout sheet at night and on the chillier days. You can use the turnout sheet alone when the temps are warmer.

I like the idea of layering and this might be a really dumb question, but... I have a fleece cooler for my mare with criss-cross belly straps and buckles on the chest closure. I bought it specifically with the idea in mind that it would be safe to leave on in the field for turnout in case I didn't have time to hand walk her dry after a bath. Would this suffice for the fleece layer, or should I invest in another fleece sheet for this purpose?

It should work out just fine!

Perfect, thank you!

If you were wearing a fur coat would you put a thick blanket on over top? Of course not. A horse withstands cold better than heat. She's itchy because she has a winter coat that's a little thick for the rising temps. Just let her do all the rolling she wants. She'll take care of it herself.

She is going to be body clipping her horse. Once her horse loses his heavy winter coat he will need some sort of protection from the elements.