A storm moved into southern Oregon and northern California withe a cold air mass already in place in the valleys.  This allowed significant amounts of snow fall at unusually low elevations...down to below 500 feet in elevation.  The cold air remained in place in the valleys...so the snow melted very slowly over the next several weeks.

Heavy Snow in CENTRAL DOUGLAS COUNTY, OREGON
From 06-DEC-13 06:00:00 to 07-DEC-13 12:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

A spotter 10 NW Tiller reported 5.0 inches of snow in 24 hours ending at 06/1650 PST, but other reports indicate the bulk of the snow fell in the last 12 hours.  A spotter 2E Scottsburg reported 5.5 inches on the Umpqua River ending at 06/1945 PST.

Heavy Snow in KLAMATH BASIN, OREGON
From 06-DEC-13 06:00:00 to 07-DEC-13 12:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

A member of the public 7WNW Modoc Point reported 12.0 inches of snow in 12 hours at  Rocky Point ending at 06/1730 PST.

Heavy Snow in SOUTH CENTRAL OREGON COAST, OREGON
From 06-DEC-13 06:00:00 to 07-DEC-13 12:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

A spotter 2E Scottsburg reported 5.5 inches on the Umpqua River ending at 06/1945 PST. While this report was not in ORZ021, it was very close to the boundary.  No snowfall reports were received from ORZ021 as the snow level was forecast to be 1500 feet and there are no spotters or snow observation stations that high in ORZ021.  However, judging from a known low snow level and several rainfall reports exceeding 0.50 inches in ORZ021, it is assumed that heavy snow criteria was met in ORZ021.

Heavy Snow in CURRY COUNTY COAST, OREGON
From 06-DEC-13 06:00:00 to 07-DEC-13 12:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

No snowfall reports were received from ORZ022 as the snow level was forecast to be 1500 feet and there are no spotters or snow observation stations that high in ORZ022.  However, judging from a known low snow level and several rainfall reports exceeding 0.50 inches in ORZ022, along with many heavy snowfall reports in adjacent zone ORZ024,  it is assumed that heavy snow criteria was met in ORZ022.

Heavy Snow in JACKSON COUNTY, OREGON
From 06-DEC-13 06:00:00 to 07-DEC-13 12:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

Numerous reports of heavy snow were recorded. A member of the public in Gold Hill reported 4.0 inches at 1600 feet in 8 hours ending at 06/1415 PST.  He also reported multiple vehicles have slid off the road into the ditch on old Highway 99 from Grants Pass to Gold Hill.  A member of the public in Trail and another in Gold Hill both reported 4.0 inches of snow in nine hours ending at 06/1500 PST.  A spotter 4N Eagle Point reported 5.3 inches of  snow in 10.5 hours ending at 06/1630 PST. An NWS employee in Eagle Point reported 5.0 inches of snow in 10.5 hours ending at 06/1430 PST and numerous accidents on Highway 62 from Medford to Eagle Point. A spotter in Phoenix reported 3.5 inches of snow in 12 hours ending at 06/1730 PST.  A spotter 1SW Medford reported 4.0 inches of snow in 12 hours ending at 06/1730 PST. A member of the public in Ashland reported 4.0 inches in 75 minutes at 2150 feet ending at 06/1730 PST.  A spotter near Del Rio Vineyard reported 4.5 inches of snow between 06/0800 and 06/1500 PST.  A spotter in Rogue River reported 5.0 inches of snow in 12 hours ending at 06/1800 PST.  A spotter 3WSW Phoenix reported 5.0 inches of snow between 06/1400 PST and 06/1645 PST.  A member of the  public at Ashland Middle School reported 5.8 inches of snow between 06/1500 PST and 06/1800 PST.  A spotter in Ashland reported 6.0 inches at 2340 feet in three hours ending at 06/1730 PST.  A spotter 6SW Shady Cove reported 3.5 inches of snow in 6 hours ending at 16/2100 PST.   A spotter in Shady Cove recorded 4.5 inches of snow in 24 hours ending at 06/1950 PST.  A member of the public in Ruch reported 4.0 inches of snow in 24 hours ending at 06/2225 PST.  A member of the public in White City reported 5.0 inches of snow in 24 hours ending at 06/2220 PST.  A member of the public 4NW Gold Hill reported 7.0 inches of snow in 24 hours ending at 06/2215 PST.  A member of the public in Eagle Point reported 7.0 inches of snow in 24 hours ending at 06/2220 PST. A spotter 1ENE Ashland reported 7.0 inches of snow in 24 hours ending at 07/1030 PST, six inches of which fell by 06/2300 PST.  A member of the public in Butte Falls reported 10.0 inches of snow in 24 hours ending at 07/1700 PST.  Another member of the public in Butte Falls reported 14.0 inches of snow in 24 hours ending at 07/1200 PST.  A member of the public in Shady Cove reported 8.0 inches of snow in 24 hours ending at 07/1100 PST. A member of the public in Prospect reported 7.3 inches of snow at 2500 feet ending at 07/1200 PST.  A member of the public 1SSE Ashland reported 7.8 inches of snow in 24 hours at 2100 feet ending at 07/1500 PST. A member of the public in Trail reported 10.0 inches of snow in 24 hours ending at 07/0900 PST.  A member of the public in Ashland reported 7.5 inches of snow in 24 hours at 2150 feet ending at 07/0900 PST.  A member of the public 5NE Gold Hill reported 7.0 inches of snow in Sam's Valley in 24 hours ending at 07/0700 PST.

Heavy Snow in EASTERN CURRY COUNTY & JOSEPHINE COUNTY, OREGON
From 06-DEC-13 06:00:00 to 07-DEC-13 12:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

A spotter 1N Williams reported 5.0 inches of snow in 12 hours or so ending at 06/1630 PST.  A spotter 1W Williams reported 3.0 inches of snow at 1650 feet between 06/1445 and 06/1600 PST, and 6 inches total in less than 12 hours ending at 06/1600 PST.  A member of the public 4SE Sunny Valley reported 4.0 inches of snow in Hugo in 12 hours ending at 06/1730 PST.  A spotter 1SSE Murphy reported 4.0 inches between 06/0800 and 06/1630 PST. A member of the public in WSW Grants Pass reported 6.0 inches of snow in 12 hours ending at 06/1800 PST. A member of the public 2S Wilderville reported 7.5 inches of snow in Wonder in 24 hours ending at 07/0700 PST.