Monday, August 21 CALIFORNIA BRACES FOR ‘LIFE-THREATENING’ FLOODS AS ‘HURRIQUAKE’ UNSETTLES THE STATE Hilary was downgraded to a post-tropical cyclone early Monday, the National Hurricane Center said, as potential “life-threatening” flooding and debris flow warnings remain in effect across the Southwestern U.S. Southern California residents were met with yet another blow earlier Sunday when a 5.1-magnitude earthquake struck the area.