Winter Weather Advisory Terms

The following advisories will be used to ALERT the public of situations that may cause some inconvenience or difficulty to travelers or people who must be outdoors.

PRODUCT Description
SPECIAL WEATHER STATEMENT (SPS)
Used when wind-driven snow intermittently reduces visibility to 1/4 mile or less. Travel may be hampered. Strong winds create blowing snow by picking up old or new snow.
WINTER WEATHER ADVISORY (WSW)
This is an all-encompassing product now that replaces the old snow advisories, sleet advisories, blowing/drifting snow advisories, and freezing rain/drizzle advisories.  It is used when a mixture of precipitation is expected such as snow, sleet and freezing rain or freezing drizzle, but will not reach warning criteria.  Used when sleet or snowfall amounts are expected to be less than 4 inches in a 12 hour period, or freezing rain/drizzle is light and ice accumulations are less than 1/4 inch.

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