GATLINBURG — Just before hitting the McDonald’s along U.S. 321 east of Gatlinburg on Dec. 2, traffic slows to a crawl. Then, to all but a stop. Hundreds of homeowners, business owners and residents line up in anxious anticipation as to what they’ll find when they finally make it through the checkpoint. An intact home, landscaped with magically unsinged shrubs? Or a pile of ash, nothing left except perhaps a few concrete steps leading to a nonexistent porch?