Yet another winter storm brought another round of heavy snow to Northern California and Southern Oregon.  The snow level dropped to sea level during this event...bringing snow to areas that rarely get any snow.
In Northern California, a Winter Storm Warning was issued for California zone CAZ082/083 above 3000 feet at 26/2317 PST, effective from 27/0800 until 27/2000 PST.  The warning was cancelled at 27/2000 PST.   A Heavy Snow Warning was issued for California zones CAZ080/081 above 3000 feet at 27/0949 PST, effective from 27/0949 until 28/0400 PST.  The warning was extended until 28/1000 PST at 27/2200 PST, and the effective level was lowered to the surface.   The warning was downgraded to a Snow Advisory at 28/0130 PST.  A Blizzard Warning was issued for California zone CAZ085 at 27/1214 PST, effective from 27/1214 until 27/2200 PST.   The warning was extended until 28/0100 PST at 27/2200 PST.  The warning  was cancelled at 28/0000 PST.

Blizzard in NORTHEAST SISKIYOU AND NORTHWEST MODOC COUNTIES, CALIFORNIA
From 27-JAN-08 16:00:00 to 27-JAN-08 17:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A spotter N Dorris at 4300 feet reported west winds 30 to 40 mph with visibilities 50 yards.

Blizzard in MODOC COUNTY, CALIFORNIA
From 27-JAN-08 16:00:00 to 27-JAN-08 17:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A law enforcement officer 9WSW Alturas at 4500 feet reported very windy conditions with visibilities 10 feet.

High Wind in NORTHEAST SISKIYOU AND NORTHWEST MODOC COUNTIES, CALIFORNIA
From 27-JAN-08 12:16:00 to 27-JAN-08 12:16:00 (PST-8)
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Other Federal Agency

A gust to 59 mph was recorded at the Indian Wells RAWS.

High Wind in MODOC COUNTY, CALIFORNIA
From 27-JAN-08 15:11:00 to 27-JAN-08 17:11:00 (PST-8)
Magnitude: 54.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Other Federal Agency

Wind gusts at the Timber Mountain RAWS exceeded High Wind Warning criteria continuously during this interval.  The peak gust was 62 mph at 27/1711 PST.

Heavy Snow in NORTH CENTRAL & SOUTHEAST SISKIYOU COUNTY, CALIFORNIA
From 27-JAN-08 18:00:00 to 28-JAN-08 12:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A spotter N Tennant reported 12.0 inches of snow during this interval.

Heavy Snow in NORTHEAST SISKIYOU AND NORTHWEST MODOC COUNTIES, CALIFORNIA
From 27-JAN-08 09:00:00 to 28-JAN-08 09:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Eleven inches of snow was reported at the Lava Beds National Monument during this interval.

Heavy Snow in SOUTH CENTRAL SISKIYOU COUNTY, CALIFORNIA
From 27-JAN-08 16:00:00 to 28-JAN-08 11:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A spotter 6NW Mount Shasta City reported 7 inches of snow between 27/1700 and 27/2200 PST.  A spotter 4SW Weed reported 8 inches of snow between 27/1600 and 28/0800 PST.  A spotter 4SSW Weed reported 6 inches of snow between 27/1800 and 28/1100 PST.

Heavy Snow in MODOC COUNTY, CALIFORNIA
From 27-JAN-08 18:00:00 to 28-JAN-08 09:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A spotter 28NE Alturas reported 8-10 inches of snow between 27/1800 and 28/0900 PST, almost all of it in 3 hours.  A spotter 3SW Canby reported 10 inches of snow between 27/1900 and 28/1900 PST.

Heavy Snow in WESTERN SISKIYOU COUNTY, CALIFORNIA
From 27-JAN-08 16:00:00 to 28-JAN-08 01:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Based on numerous reports of heavy snow and strong winds in adjacent zone CAZ082, it is assumed that Winter Storm Warning criteria was met in zone CAZ080.

Heavy Snow in CENTRAL SISKIYOU COUNTY, CALIFORNIA
From 27-JAN-08 16:00:00 to 28-JAN-08 01:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Based on numerous reports of heavy snow and strong winds in adjacent zones CAZ082 and CAZ083, it is assumed that Winter Storm Warning criteria was met in zone CAZ081.