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Blizzard
(abbrev. BLZD)- A blizzard means that the following conditions are expected to prevail for a period of 3 hours or longer:
  • Sustained wind or frequent gusts to 35 miles an hour or greater; and
  • Considerable falling and/or blowing snow (i.e., reducing visibility frequently to less than ΒΌ mile)
Blizzard Warning
Issued for winter storms with sustained or frequent winds of 35 mph or higher with considerable falling and/or blowing snow that frequently reduces visibility to 1/4 of a mile or less. These conditions are expected to prevail for a minimum of 3 hours.
Ground Blizzard Warning
When blizzard conditions are solely caused by blowing and drifting snow.

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     Page last Modified: 25 June, 2009 1:01 PM