Slight Changes Made to Winter Advisories and Warnings

Beginning this winter season, the National Weather Service will make some changes to the suite of products used to advise and warn the public of significant winter weather.  The purpose of these changes is to simplify and clarify the communication and distribution of expected winter weather hazards.  This will also allow for better consistency of the graphical depiction of forecast winter weather hazards via the Internet.

The following tables show the difference between current and future advisory and warning categories.

CURRENT WINTER ADVISORIES           FUTURE WINTER ADVISORIES

FREEZING RAIN --------------------- FREEZING RAIN
LAKE EFFECT SNOW ------------------ LAKE EFFECT SNOW
LAKE EFFECT SNOW AND BLOWING SNOW - LAKE EFFECT SNOW
WIND CHILL ------------------------ WIND CHILL
WINTER WEATHER -------------------- WINTER WEATHER
SNOW ------------------------------ WINTER WEATHER
SNOW AND BLOWING SNOW ------------- WINTER WEATHER
SLEET ----------------------------- WINTER WEATHER
BLOWING SNOW ---------------------- WINTER WEATHER


CURRENT WINTER WARNINGS             FUTURE WINTER WARNINGS

BLIZZARD -------------------------- BLIZZARD
ICE STORM ------------------------- ICE STORM
LAKE EFFECT SNOW ------------------ LAKE EFFECT SNOW
WIND CHILL ------------------------ WIND CHILL
WINTER STORM ---------------------- WINTER STORM
HEAVY SNOW ------------------------ WINTER STORM
SLEET ----------------------------- WINTER STORM


The specific hazard information will be clearly depicted in the first line of the body of the advisory or warning product in a standardized format.  For example, if the main threat is heavy snow with little if any wind expected, then the first line would read:

"The National Weather Service in Riverton has issued a Winter Storm Warning for heavy snow..."

For many years, WFO Riverton has employed a similar approach, previously issuing any advisory as a “Snow Advisory” and issuing any snow-related warning as a “Winter Storm Warning.”  This approach will remain the same, except that all advisory products will now be distributed as a “Winter Weather Advisory.”



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