Clouds and scattered showers are expected to increase over the next couple days before a cold front brings the threat of heavy rain, thunderstorms, and strong winds this weekend. Hawaiian Electric says its closely monitoring the weekend weather forecast and preparing to respond to any power outages. And authorities in Arizona gave an update in the search for Nancy Guthrie, the 84-year old mother of "Today" show co-host Savannah Guthrie, who hasn't been seen or heard from in five days.