Winter weather advisory

Winter weather advisory,

A Winter Weather Advisory is issued by the National Weather Service of the United States when a low pressure system produces a combination of winter weather (snow, freezing rain, or sleet) that presents a hazard, but does not meet warning criteria. A Winter Weather Advisory is similar to significant weather alert, though a winter weather advisory is an official product. A "Winter Weather Advisory" means that a period of winter weather will make traveling difficult.

A similar warning is issued by Environment Canada's Meteorological Service of Canada offices.

Example of a winter weather advisory

URGENT - WINTER WEATHER MESSAGE

NATIONAL WEATHER SERVICE ALBUQUERQUE NM

412 PM MDT MON OCT 13 2008

...ACCUMULATING SNOW LIKELY FOR WESTERN AND NORTHERN NEW MEXICO...

.A FAIRLY POTENT MID AND UPPER LEVEL LOW PRESSURE SYSTEM WILL

INTENSIFY OVER ARIZONA AND HEAD SLOWLY TO THE EAST TONIGHT INTO

EARLY TUESDAY. VERY MOIST AIR ACROSS EASTERN NEW MEXICO WILL BE

LIFTED NORTH AND NORTHWESTWARD OVER A CHILLY AIRMASS THAT WILL

ADVANCE TO THE SOUTH AND EAST ACROSS NEW MEXICO OVER THE NEXT 24

HOURS. THE POTENTIAL EXISTS FOR SEVERAL INCHES OF SNOW OVER THE

NORTHERN AND WEST CENTRAL MOUNTAINS...THE UPPER RIO GRANDE VALLEY

AND THE WESTERN REACHES OF THE NORTHEAST HIGHLANDS.

NMZ003-140400-

/O.NEW.KABQ.WW.Y.0016.081014T0600Z-081015T0000Z/

UPPER RIO GRANDE VALLEY-

INCLUDING THE CITY OF...ESPANOLA

412 PM MDT MON OCT 13 2008

...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO

6 PM MDT TUESDAY...

THE NATIONAL WEATHER SERVICE IN ALBUQUERQUE HAS ISSUED A WINTER

WEATHER ADVISORY FOR HEAVY SNOW...WHICH IS IN EFFECT FROM MIDNIGHT

TONIGHT TO 6 PM MDT TUESDAY.

PRECIPITATION WILL GRADUALLY INCREASE IN COVERAGE THIS EVENING

AND BECOME WIDESPREAD THROUGH TUESDAY MORNING. SNOW LEVELS WILL

INITIALLY BE ABOVE 8500 FEET THEN GRADUALLY FALL TO AROUND 6500

FEET BY TUESDAY MORNING. THE POTENTIAL EXISTS FOR 1 TO 2 INCHES

ABOVE 6500 FEET...MAINLY BETWEEN EMBUDO TO NAME PUEBLO INCLUDING

CHIMAYO. LESSER SNOW AMOUNTS AROUND A DUSTING ARE POSSIBLE IN THE

VALLEY FLOOR.