Thanksgiving storm arrives in Northern California with ‘Bomb Cyclone’ in the Sierra
(CNN)An intense and ferocious winter storm — a “bomb cyclone” — is expected to bring hurricane-force wind gusts, blizzard conditions and a flood threat across a swath of the US heartland Wednesday. A bomb cyclone occurs when there is a rapid pressure drop, falling at least 24 millibars (which measures atmospheric pressure) over 24 hours…