National Weather Service Weather Forecast Office

WINTER STORM WARNINGS

Used for events that could cause death, injury or significant property damage.

Winter Storm Warning (snow/mixed precipitation/wind) is issued for the following events:

• Mid-range value of 6 inches or more of snow in 12 hours
• Mid-range value of 8 inches or more of snow in 24 hours
• A mix of freezing and frozen precipitation which causes life-threatening conditions (e.g., several inches of snow with freezing rain)
• 3 to 5 inches of snow with high winds (20 mph or greater)

BLIZZARD WARNING (strong winds cause white-out conditions)

Sustained winds or frequent gusts near 35 mph or more, and considerable falling and/or blowing snow frequently reducing visibility to near 1/4 mile or less, for three hours or longer