Unusual cold threatens California

"California is bracing for a severe cold snap that could see snow at sea level and may threaten $840 million worth of the state's citrus crops. Local government agencies are preparing for the unusually frigid spell by opening "warming centers" for those without heat and patrolling overnight for homeless people who are at risk of hypothermia.

"The temperatures they're projecting are pretty unusual," said Trent Rhorer, director of the San Francisco Department of Human Services. "Maybe three times a year we'll activate a cold weather system for our homeless shelters, but this looks like it's going to be extraordinarily cold. We're stepping up more than we usually do."
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