…Winter Weather Late Tonight into Sunday Evening… .Snow levels will rise ahead of a front. Precipitation will begin late tonight with a wide range of snow levels, mainly above 6000 feet with the potential for terrain influences to result in trapped cold air in valleys. This wintry mix of sleet, snow, and perhaps brief, localized freezing rain has the highest probability of occurring in Klamath County early Sunday morning, around 4 AM to 7 AM PST. Snow levels will drop through the day on Sunday into Sunday evening. A significant accumulation of snow is expected above 4000 to 4500 feet with the snow level falling to around 3500 feet as snow showers taper off during Sunday evening. This system will also produce breezy to windy conditions.
South Central Siskiyou County-
North Central and Southeast Siskiyou County-Modoc County-
Northern and Eastern Klamath County and Western Lake County-
Central and Eastern Lake County-
Including the cities of Bray, Pondosa, Tennant, Alturas, Lookout,
Altamont, Klamath Falls, Beatty, Bly, Chemult, Crescent,
Sprague River, Lakeview, and Valley Falls
249 PM PST Sat Dec 12 2020
…WINTER WEATHER ADVISORY IN EFFECT FROM 4 AM TO 10 PM PST
SUNDAY ABOVE 4000 FEET…
* WHAT…Snow expected above 4000 feet. Total snow accumulations
of 2 to 4 inches in valleys and 4 to 8 inches in the mountains.
Winds gusting as high as 40 mph.
* WHERE…Portions of northern California and south central
Oregon. This includes portions of Highways 97, 140, 395, 139,
and 89. Locations affected include Chemult, Chiloquin, Klamath
Falls, Bly, Lakeview, the Warner Mountains, Tennant, Dead Horse
Summit, and Snowmans Summit.
* WHEN…From 4 AM to 10 PM PST Sunday.
* IMPACTS…Plan on slippery road conditions.
* ADDITIONAL DETAILS…The snow level will be around 6000 feet as
precipitation begins late tonight then drop to around 4000 feet
during Sunday with significant accumulation continuing through
Sunday evening. But, cold air trapped in valleys may produce a
few hours of sleet, or brief, localized freezing rain as
precipitation begins early Sunday morning. This risk will be
highest near Chiloquin. A wintry mix is also expected in the
vicinity of the city of Mount Shasta as precipitation begins
early Sunday morning and again as it tapers off Sunday evening.
* View the hazard area in detail at
* Slow down and allow extra time to reach your destination.
* Carry tire chains and be prepared for snow covered roads and
* A Winter Weather Advisory for snow means that periods of snow
will cause travel difficulties.