Many of the outerwear options offered by Columbia are available in plus sizes. The Columbia brand website would probably be the best way to find the outerwear that suits your daughter most.
The easiest way to find wear to buy plus sized Columbia outerwear is by using the site Bizrate that provides prices and links to stores selling them. Finding them cheap and authentic would be your hardest hurdle to cross since most name brands have many knock offs.
Old Navy has a great selection of plus sized clothing, including outerwear, and they are located pretty much everywhere. Also, Walmart carries plus sized clothing and they sell outerwear as well.
No, I do not think that K-Mart sells trendy outerwear for professionals. To find trendy outwear for plus sized professionals, you should try Kohls or JCPenny.
Lands End, which is owned by Sears, has very cute plus sized outerwear. You can go to your local Lands End store or visit landsend.com in order to view the plus sized parkas and other cute outerwears.
If you are planning to use the outerwear only for your short vacation, you may wish to look into used outerwear, which can be reasonably priced and is often still in excellent condition. One of the best places to find a large selection of outwear in ALL sizes is the online auction site, eBay. You'll be able to search by the exact size and style you would like.
The best brands of plus size outerwear include Land's End and Columbia. Jessica London also makes very nice items. For fancy occasions, Tahari has a line of dress plus size women's coats.
There are many places to get plus sized Columbia Jackets. Macys carries that brand and they also have a plus size section. Dicks sporting Goods also carries that brand in plu sizes. The Columbia website does as well.
Many mainstream retailers like Walmart, Target and Macy's carry plus size clothing, including coats. In addition, there are various stores that sell only plus sized clothing such as Torrid and Lane Bryant which also carry outerwear.
overstock.com should be helpful in allowing you to find the best prices for plus size clothes, and it offers an extensive selection of outerwear. With this website you can compare prices and the quality of clothes to find the best fit for you.
"JC Penny has a wide selection of Plus Size Outerwear at an incredibly affordable, cheap price. Ranging from stylish belted coats to comfy fleece jackets, you'll find what you need there."
It depends if you live in a rural or urban city. If you live in NY, it'll be a bit harder to find versus in rural Indiana. If you have a Gander Mtn. of Dick's Sporting Goods, they are excellent places to find plus sized outerwear.
You can find some less expensive outerwear for plus size women at Burlington Coat Factory, which is an outlet store. You can also visit Fashion Bug, they have a plus size section and they have real nice outerwear for plus size women at a real good discounted price.