...Lower Elevation Snow expected through this evening... ...Heavy Snow Likely Across Much of Siskiyou County and portions of Josephine and eastern Curry Counties Tuesday and Wednesday... .A cold low pressure system moving across the area will bring light to moderate snow showers down to 1000 to 2000 feet through late this evening. Areas west of the Cascades will see light to moderate snow accumulations, mainly above 2000 feet elevation, except down to 1500 feet in Douglas County and in the southern Rogue Valley in and near Ashland. Across lower valley floors, periods of light snow or a rain-snow mix are expected into this evening. Lingering isolated to scattered showers are expected tonight into Monday as snow levels lower into the 500 to 1500 foot range. A much stronger, wetter, and cold low pressure system is then likely to bring heavy snow to much of Siskiyou County, especially the Mount Shasta area, Tuesday afternoon into Wednesday. Heavy snow is possible in Josephine and eastern Curry counties as well for elevations above 2000 feet. ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING ABOVE 2000 FEET... ...WINTER STORM WARNING REMAINS IN EFFECT FROM 1 PM TUESDAY TO 4 PM PST WEDNESDAY...

* WHAT... For the Winter Weather Advisory above 2000 feet, snow. Additional snow accumulations of up to 2 inches. For the Winter Storm Warning, heavy snow expected. Total snow accumulations of 6 to 15 inches in the southern Shasta Valley. Winds gusting as high as 60 mph.

* WHERE...For the advisory, this includes the Shasta Valley, including Interstate 5, Weed, Grenada, Yreka, Gazelle and Montague. For the warning, this includes the southern Shasta Valley including Interstate 5, Weed and Gazelle.

* WHEN...For the Winter Weather Advisory, until 10 PM PST this evening. For the Winter Storm Warning, from 1 PM Tuesday to 4 PM PST Wednesday.

* IMPACTS...Travel is likely to become increasingly difficult during this time period, and could be very difficult or dangerous and impossible Tuesday evening into Wednesday. Blizzard conditions with visibilities reduced to one quarter of a mile or less in blowing snow may occur, including along Interstate 5. Heavy snowfall and strong winds could cause tree and/or power line damage.

* ADDITIONAL DETAILS...It is best to prepare for the expected snowfall as soon as possible, as travel could be very difficult to nearly impossible Tuesday evening into Wednesday morning in some areas. Heaviest snow will occur in the southern Shasta Valley with moderate snow possible in the north of Gazelle.

* View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD

...Lower Elevation Snow expected through this evening... ...Heavy Snow Likely Across Much of Siskiyou County and portions of Josephine and eastern Curry Counties Tuesday and Wednesday... .A cold low pressure system moving across the area will bring light to moderate snow showers down to 1000 to 2000 feet through late this evening. Areas west of the Cascades will see light to moderate snow accumulations, mainly above 2000 feet elevation, except down to 1500 feet in Douglas County and in the southern Rogue Valley in and near Ashland. Across lower valley floors, periods of light snow or a rain-snow mix are expected into this evening. Lingering isolated to scattered showers are expected tonight into Monday as snow levels lower into the 500 to 1500 foot range. A much stronger, wetter, and cold low pressure system is then likely to bring heavy snow to much of Siskiyou County, especially the Mount Shasta area, Tuesday afternoon into Wednesday. Heavy snow is possible in Josephine and eastern Curry counties as well for elevations above 2000 feet. ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING ABOVE 2000 FEET... ...WINTER STORM WARNING REMAINS IN EFFECT FROM 1 PM TUESDAY TO 4 PM PST WEDNESDAY...

* WHAT... For the Winter Weather Advisory above 2000 feet, snow. Additional snow accumulations of up to 2 inches. For the Winter Storm Warning, heavy snow expected. Total snow accumulations of 6 to 15 inches in the southern Shasta Valley. Winds gusting as high as 60 mph.

* WHERE...For the advisory, this includes the Shasta Valley, including Interstate 5, Weed, Grenada, Yreka, Gazelle and Montague. For the warning, this includes the southern Shasta Valley including Interstate 5, Weed and Gazelle.

* WHEN...For the Winter Weather Advisory, until 10 PM PST this evening. For the Winter Storm Warning, from 1 PM Tuesday to 4 PM PST Wednesday.

* IMPACTS...Travel is likely to become increasingly difficult during this time period, and could be very difficult or dangerous and impossible Tuesday evening into Wednesday. Blizzard conditions with visibilities reduced to one quarter of a mile or less in blowing snow may occur, including along Interstate 5. Heavy snowfall and strong winds could cause tree and/or power line damage.

* ADDITIONAL DETAILS...It is best to prepare for the expected snowfall as soon as possible, as travel could be very difficult to nearly impossible Tuesday evening into Wednesday morning in some areas. Heaviest snow will occur in the southern Shasta Valley with moderate snow possible in the north of Gazelle.

* View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD

...Lower Elevation Snow expected through this evening... ...Heavy Snow Likely Across Much of Siskiyou County and portions of Josephine and eastern Curry Counties Tuesday and Wednesday... .A cold low pressure system moving across the area will bring light to moderate snow showers down to 1000 to 2000 feet through late this evening. Areas west of the Cascades will see light to moderate snow accumulations, mainly above 2000 feet elevation, except down to 1500 feet in Douglas County and in the southern Rogue Valley in and near Ashland. Across lower valley floors, periods of light snow or a rain-snow mix are expected into this evening. Lingering isolated to scattered showers are expected tonight into Monday as snow levels lower into the 500 to 1500 foot range. A much stronger, wetter, and cold low pressure system is then likely to bring heavy snow to much of Siskiyou County, especially the Mount Shasta area, Tuesday afternoon into Wednesday. Heavy snow is possible in Josephine and eastern Curry counties as well for elevations above 2000 feet. ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING ABOVE 2000 FEET... ...WINTER STORM WARNING REMAINS IN EFFECT FROM 10 AM TUESDAY TO 10 AM PST WEDNESDAY ABOVE 2000 FEET...

* WHAT...For the Winter Weather Advisory above 2000 feet, snow. Additional snow accumulations up to 2 inches. For the Winter Storm Warning above 2000 feet, heavy snow expected. Total snow accumulations of 6 to 15 inches with locally higher amounts over the Kalmiopsis Wilderness. Southwest winds could gust to 40 mph.

* WHERE...Eastern Curry County and Josephine County above 2000 feet. This includes portions of Interstate 5 at Sexton Summit and Highway 199 at the California-Oregon border.

* WHEN...For the Winter Weather Advisory, until 10 PM PST this evening. For the Winter Storm Warning, from 10 AM Tuesday to 10 AM PST Wednesday.

* IMPACTS...Travel is likely to become increasingly difficult during this time period, and could be very difficult to impossible Tuesday evening into Wednesday. Heavy snowfall at all elevations and strong winds at mid to upper elevations could cause tree and/or power line damage.

* ADDITIONAL DETAILS...It is best to prepare for the expected snowfall as soon as possible, as travel could be very difficult to nearly impossible Tuesday evening into Wednesday morning for the passes or roads at or above 2000 feet. Additionally light to moderate snow is expected in the Illinois Valley.

* View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD

...Lower Elevation Snow expected through this evening... ...Heavy Snow Likely Across Much of Siskiyou County and portions of Josephine and eastern Curry Counties Tuesday and Wednesday... .A cold low pressure system moving across the area will bring light to moderate snow showers down to 1000 to 2000 feet through late this evening. Areas west of the Cascades will see light to moderate snow accumulations, mainly above 2000 feet elevation, except down to 1500 feet in Douglas County and in the southern Rogue Valley in and near Ashland. Across lower valley floors, periods of light snow or a rain-snow mix are expected into this evening. Lingering isolated to scattered showers are expected tonight into Monday as snow levels lower into the 500 to 1500 foot range. A much stronger, wetter, and cold low pressure system is then likely to bring heavy snow to much of Siskiyou County, especially the Mount Shasta area, Tuesday afternoon into Wednesday. Heavy snow is possible in Josephine and eastern Curry counties as well for elevations above 2000 feet. ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING ABOVE 2000 FEET... ...WINTER STORM WARNING REMAINS IN EFFECT FROM 10 AM TUESDAY TO 10 AM PST WEDNESDAY ABOVE 2000 FEET...

* WHAT...For the Winter Weather Advisory above 2000 feet, snow. Additional snow accumulations up to 2 inches. For the Winter Storm Warning above 2000 feet, heavy snow expected. Total snow accumulations of 6 to 15 inches with locally higher amounts over the Kalmiopsis Wilderness. Southwest winds could gust to 40 mph.

* WHERE...Eastern Curry County and Josephine County above 2000 feet. This includes portions of Interstate 5 at Sexton Summit and Highway 199 at the California-Oregon border.

* WHEN...For the Winter Weather Advisory, until 10 PM PST this evening. For the Winter Storm Warning, from 10 AM Tuesday to 10 AM PST Wednesday.

* IMPACTS...Travel is likely to become increasingly difficult during this time period, and could be very difficult to impossible Tuesday evening into Wednesday. Heavy snowfall at all elevations and strong winds at mid to upper elevations could cause tree and/or power line damage.

* ADDITIONAL DETAILS...It is best to prepare for the expected snowfall as soon as possible, as travel could be very difficult to nearly impossible Tuesday evening into Wednesday morning for the passes or roads at or above 2000 feet. Additionally light to moderate snow is expected in the Illinois Valley.

* View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD

...Lower Elevation Snow expected through this evening... ...Heavy Snow Likely Across Much of Siskiyou County and portions of Josephine and eastern Curry Counties Tuesday and Wednesday... .A cold low pressure system moving across the area will bring light to moderate snow showers down to 1000 to 2000 feet through late this evening. Areas west of the Cascades will see light to moderate snow accumulations, mainly above 2000 feet elevation, except down to 1500 feet in Douglas County and in the southern Rogue Valley in and near Ashland. Across lower valley floors, periods of light snow or a rain-snow mix are expected into this evening. Lingering isolated to scattered showers are expected tonight into Monday as snow levels lower into the 500 to 1500 foot range. A much stronger, wetter, and cold low pressure system is then likely to bring heavy snow to much of Siskiyou County, especially the Mount Shasta area, Tuesday afternoon into Wednesday. Heavy snow is possible in Josephine and eastern Curry counties as well for elevations above 2000 feet. ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING ABOVE 2000 FEET...

* WHAT...Snow expected above 2000 feet. Additional snow accumulations of up 2 inches.

* WHERE...Portions of Jackson County above 2000 feet. This includes Jacksonville Hill along Highway 238, Butte Falls, Prospect, and portions of Highways 62 and 140. This also includes the City of Ashland as well as portions Interstate 5 near south Ashland.

* WHEN...From 7 AM to 10 PM PST Sunday.

* IMPACTS...Travel could be difficult with slick, snow covered roadways, at times.

* ADDITIONAL DETAILS...Periods of light snow or a rain-snow mix are possible down to around lower valley floors at times, this evening. Isolated to scattered snow showers will continue tonight into Monday with light snow possible down to lower valley floors at times. Freezing temperatures overnight could result in icy road conditions this evening through Monday morning.

* View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD

...Lower Elevation Snow expected through this evening... ...Heavy Snow Likely Across Much of Siskiyou County and portions of Josephine and eastern Curry Counties Tuesday and Wednesday... .A cold low pressure system moving across the area will bring light to moderate snow showers down to 1000 to 2000 feet through late this evening. Areas west of the Cascades will see light to moderate snow accumulations, mainly above 2000 feet elevation, except down to 1500 feet in Douglas County and in the southern Rogue Valley in and near Ashland. Across lower valley floors, periods of light snow or a rain-snow mix are expected into this evening. Lingering isolated to scattered showers are expected tonight into Monday as snow levels lower into the 500 to 1500 foot range. A much stronger, wetter, and cold low pressure system is then likely to bring heavy snow to much of Siskiyou County, especially the Mount Shasta area, Tuesday afternoon into Wednesday. Heavy snow is possible in Josephine and eastern Curry counties as well for elevations above 2000 feet. ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 10 PM PST THIS EVENING ABOVE 3500 FEET... ...WINTER STORM WARNING REMAINS IN EFFECT FROM 1 PM TUESDAY TO 4 PM PST WEDNESDAY...

* WHAT...For the Winter Weather Advisory above 3500 feet, snow. Additional snow accumulations of up to two inches. Storm total snow accumulations from this first low pressure system are expected to be 3 to 6 inches in the advisory area. For the Winter Storm Warning, heavy snow expected. Heavy snow expected. Total snow accumulations of 15 to 30 inches with locally higher amounts above 5000 feet. Moderate to strong winds with gusts of 40 to 60 mph from Black Butte Summit to Weed and for elevations above 5,000 feet.

* WHERE...For the advisory, while all areas will get snow this evening, the advisory is for areas in and around Mount Shasta City and elevations above 3500 feet, including portions of Interstate 5 and all Highway 89. The Winter Storm warning is for all areas including. Mount Shasta City, McCloud, Dunsmuir, Pondosa, and Tennant in South Central and Southeast Siskiyou County. This includes Interstate 5, Highway 89, and portions of Highway 97 between Weed and Grass Lake.

* WHEN...Until 10 PM PST this evening for the advisory. 1 PM to 4 PM PST Wednesday for the Winter Storm Warning.

* IMPACTS...Travel could be very difficult to impossible. Blowing snow could significantly reduce visibility and white out conditions are possible at times, including along Interstate 5. Heavy snowfall and moderate to strong winds could cause tree and/or power line damage.

* ADDITIONAL DETAILS...Snow levels are very likely to be low for this winter storm and snow amounts are likely to be significant, especially in the Dunsmuir to Mount Shasta area.

* View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD

...Lower Elevation Snow expected through this evening... ...Heavy Snow Likely Across Much of Siskiyou County and portions of Josephine and eastern Curry Counties Tuesday and Wednesday... .A cold low pressure system moving across the area will bring light to moderate snow showers down to 1000 to 2000 feet through late this evening. Areas west of the Cascades will see light to moderate snow accumulations, mainly above 2000 feet elevation, except down to 1500 feet in Douglas County and in the southern Rogue Valley in and near Ashland. Across lower valley floors, periods of light snow or a rain-snow mix are expected into this evening. Lingering isolated to scattered showers are expected tonight into Monday as snow levels lower into the 500 to 1500 foot range. A much stronger, wetter, and cold low pressure system is then likely to bring heavy snow to much of Siskiyou County, especially the Mount Shasta area, Tuesday afternoon into Wednesday. Heavy snow is possible in Josephine and eastern Curry counties as well for elevations above 2000 feet. ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 10 PM PST THIS EVENING ABOVE 3500 FEET... ...WINTER STORM WARNING REMAINS IN EFFECT FROM 1 PM TUESDAY TO 4 PM PST WEDNESDAY...

* WHAT...For the Winter Weather Advisory above 3500 feet, snow. Additional snow accumulations of up to two inches. Storm total snow accumulations from this first low pressure system are expected to be 3 to 6 inches in the advisory area. For the Winter Storm Warning, heavy snow expected. Heavy snow expected. Total snow accumulations of 15 to 30 inches with locally higher amounts above 5000 feet. Moderate to strong winds with gusts of 40 to 60 mph from Black Butte Summit to Weed and for elevations above 5,000 feet.

* WHERE...For the advisory, while all areas will get snow this evening, the advisory is for areas in and around Mount Shasta City and elevations above 3500 feet, including portions of Interstate 5 and all Highway 89. The Winter Storm warning is for all areas including. Mount Shasta City, McCloud, Dunsmuir, Pondosa, and Tennant in South Central and Southeast Siskiyou County. This includes Interstate 5, Highway 89, and portions of Highway 97 between Weed and Grass Lake.

* WHEN...Until 10 PM PST this evening for the advisory. 1 PM to 4 PM PST Wednesday for the Winter Storm Warning.

* IMPACTS...Travel could be very difficult to impossible. Blowing snow could significantly reduce visibility and white out conditions are possible at times, including along Interstate 5. Heavy snowfall and moderate to strong winds could cause tree and/or power line damage.

* ADDITIONAL DETAILS...Snow levels are very likely to be low for this winter storm and snow amounts are likely to be significant, especially in the Dunsmuir to Mount Shasta area.

* View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD

...Lower Elevation Snow expected through this evening... ...Heavy Snow Likely Across Much of Siskiyou County and portions of Josephine and eastern Curry Counties Tuesday and Wednesday... .A cold low pressure system moving across the area will bring light to moderate snow showers down to 1000 to 2000 feet through late this evening. Areas west of the Cascades will see light to moderate snow accumulations, mainly above 2000 feet elevation, except down to 1500 feet in Douglas County and in the southern Rogue Valley in and near Ashland. Across lower valley floors, periods of light snow or a rain-snow mix are expected into this evening. Lingering isolated to scattered showers are expected tonight into Monday as snow levels lower into the 500 to 1500 foot range. A much stronger, wetter, and cold low pressure system is then likely to bring heavy snow to much of Siskiyou County, especially the Mount Shasta area, Tuesday afternoon into Wednesday. Heavy snow is possible in Josephine and eastern Curry counties as well for elevations above 2000 feet. ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING ABOVE 2000 FEET... ...WINTER STORM WARNING REMAINS IN EFFECT FROM 10 AM TUESDAY TO 10 AM PST WEDNESDAY ABOVE 1500 FEET...

* WHAT...For the Winter Weather Advisory above 2000 feet, snow. Additional snow accumulations up to 2 inches. For the Winter Storm Warning above 1500 feet, heavy snow expected. Total snow accumulations of 8 to 16 inches with locally higher amounts of around 20 inches above 4000 feet elevation. Winds gusting as high as 40 to 50 mph.

* WHERE...For the Winter Weather Advisory: elevations above 2,000 feet in Western Siskiyou County. This includes Sawyers Bar, Scott Bar, Fort Jones, Greenview, Etna, Callahan, and areas surrounding Somes Bar, Happy Camp, and Seiad Valley. This also includes Highway 3, Sawyers Bar Road, and portions of Highway 96. The Winter Storm Watch is for the same areas down to 1500 feet.

* WHEN...For the Winter Storm Warning, from 10 AM Tuesday to 10 AM PST Wednesday.

* IMPACTS...For the Winter Weather Advisory, until 10 PM PST this evening. Travel is likely to become increasingly difficult during this time period, and could be very difficult to impossible Tuesday evening into Wednesday. Heavy snowfall at all elevations and strong winds at mid to upper elevations could cause tree and/or power line damage.

* ADDITIONAL DETAILS...It is best to prepare for the expected snowfall as soon as possible, as travel could be very difficult to nearly impossible Tuesday evening into Wednesday morning for area passes and roads. Additionally light to moderate snow is expected down to lower valley floors.

* View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD

...Lower Elevation Snow expected through this evening... ...Heavy Snow Likely Across Much of Siskiyou County and portions of Josephine and eastern Curry Counties Tuesday and Wednesday... .A cold low pressure system moving across the area will bring light to moderate snow showers down to 1000 to 2000 feet through late this evening. Areas west of the Cascades will see light to moderate snow accumulations, mainly above 2000 feet elevation, except down to 1500 feet in Douglas County and in the southern Rogue Valley in and near Ashland. Across lower valley floors, periods of light snow or a rain-snow mix are expected into this evening. Lingering isolated to scattered showers are expected tonight into Monday as snow levels lower into the 500 to 1500 foot range. A much stronger, wetter, and cold low pressure system is then likely to bring heavy snow to much of Siskiyou County, especially the Mount Shasta area, Tuesday afternoon into Wednesday. Heavy snow is possible in Josephine and eastern Curry counties as well for elevations above 2000 feet. ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING ABOVE 2000 FEET... ...WINTER STORM WARNING REMAINS IN EFFECT FROM 10 AM TUESDAY TO 10 AM PST WEDNESDAY ABOVE 1500 FEET...

* WHAT...For the Winter Weather Advisory above 2000 feet, snow. Additional snow accumulations up to 2 inches. For the Winter Storm Warning above 1500 feet, heavy snow expected. Total snow accumulations of 8 to 16 inches with locally higher amounts of around 20 inches above 4000 feet elevation. Winds gusting as high as 40 to 50 mph.

* WHERE...For the Winter Weather Advisory: elevations above 2,000 feet in Western Siskiyou County. This includes Sawyers Bar, Scott Bar, Fort Jones, Greenview, Etna, Callahan, and areas surrounding Somes Bar, Happy Camp, and Seiad Valley. This also includes Highway 3, Sawyers Bar Road, and portions of Highway 96. The Winter Storm Watch is for the same areas down to 1500 feet.

* WHEN...For the Winter Storm Warning, from 10 AM Tuesday to 10 AM PST Wednesday.

* IMPACTS...For the Winter Weather Advisory, until 10 PM PST this evening. Travel is likely to become increasingly difficult during this time period, and could be very difficult to impossible Tuesday evening into Wednesday. Heavy snowfall at all elevations and strong winds at mid to upper elevations could cause tree and/or power line damage.

* ADDITIONAL DETAILS...It is best to prepare for the expected snowfall as soon as possible, as travel could be very difficult to nearly impossible Tuesday evening into Wednesday morning for area passes and roads. Additionally light to moderate snow is expected down to lower valley floors.

* View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD