People are encouraged not to panic

SPECIAL WEATHER STATEMENT

You can quickly become disoriented. Wait for emergency help to arrive. Periodically run your engine for heat. Ensure your exhaust pipe is cleared. Crack your windows, for God's sake, to avoid poisoning. Make yourself visible by tying a colored cloth to your antenna. Move your arms from time to time, your legs, fingers, and toes. Doing so will help keep the blood from coagulating.

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Adapted from National Weather Service, Howard County, MD, 10 February 2010