California's Lakes: From Historic Flooding to Reformation and Melting Snow.

California's historic Tulare Lake, which dried up in the early 20th century, has unexpectedly reappeared due to massive amounts of runoff from winter storms, expanding over 180 square miles - nearly the same size as Lake Tahoe. While the wet conditions have been a relief in the drought-ridden state, the rise of the "Ghost Lake" could result in billions of dollars in losses, as it threatens to flood nearby communities and damage crops.