Moved too fast & silently to be an airplaine.I live in a rural area of the Ozarks. I was sitting on my front porch drinking morning coffee. I was facing west. I noticed a very bright blinking light to the north barely above the tree lines. Just a second later it blinked again, but was farther south. This went on for about 30 seconds, always going south, just veering east or west a small percentage, until it went out of sight behind the trees, about five miles south of me. This light made no sound. The background was dark gray, since we had rain earlier. There was no wind, no stars, the clouds were still out. This object was below the clouds. This was the first time I had observed this.