A long lasting winter storm moved through southern Oregon during this interval. The snow level started off above pass level with heavy rain totals reported at lower elevations. The snow level lowered to populated areas later in the event.  This wound up being a historic snowstorm for the Illinois Valley.

Heavy Snow in NORTHERN & EASTERN KLAMATH COUNTY & WESTERN LAKE COUNTY, OREGON
From 15-FEB-11 19:00:00 to 16-FEB-11 07:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A member of the public 1N of Bly Mountain reported 10 inches of snow overnight ending at 16/0700 PST.  She said 12.0 inches fell overnight south of Bly Mountain.

Heavy Snow in EASTERN CURRY COUNTY & JOSEPHINE COUNTY, OREGON
From 15-FEB-11 20:00:00 to 17-FEB-11 10:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

The cooperative observer at Cave Junction reported 3.1 inches of snow in 24 hour ending at 16/1800 PST. then another 7.3 inches of snow in 24 hours ending at 17/1800 PST.  A CoCoRAHs observer 2SW OBrien reported 11.0 inches of snow in 24 hours ending at 17/1000 PST.  A CoCoRAHs observer 3.7E Cave Junction reported 11.2 inches of snow in 24 hours ending at 17/1000 PST. A spotter 2NNE Selma reported 4.0 inches of snow in 12 hours ending at 16/0800 PST and another 11.0 inches in 24 hours ending at 17/0800 PST.  A spotter 6SW Merlin reported 4.0 inches of snow in 8 hours ending at 17/0500 PST and another 4.0 inches in 10.5 hours ending at 17/0830 PST and another 1.5 inches in an hour ending at 17/0930 PST.  A spotter 2WSW OBrien reported 5.0 inches of snow in 24 hours ending at 16/1030 PST, then another 7.0 inches in 20 hours ending at 17/0600 PST, then a storm total of 18.0 inches at 17/1800 PST.  He stated that this was the biggest snow in that area in 18 years.  He has been recorded weather data there for 20 years. A spotter 1SSW OBrien reported 12.0 inches of snow in 24 hours ending at 17/0800 PST, 9.0 inches of it since 16/1800 PST. A spotter 5NNE Selma reported 11.0 inches of snow ending at 17/0800 PST. A spotter 2SE Cave Junction reported 9.5 inches of snow overnight ending at 17/0830 PST. A spotter 4SSW Merlin reported 7.8 inches of snow in 12 hours ending at 17/0830 PST. A spotter 3ESE Grants Pass reported 5.0 inches of snow in 12 hours ending at 17/0930 PST. A spotter 1WSW Williams reported 5.0 inches of snow in 12 hours ending at 17/0930 PST. A spotter 4W Merlin reported 9.0 inches of snow overnight ending at 17/0930 PST.

Heavy Snow in CENTRAL & EASTERN LAKE COUNTY, OREGON
From 15-FEB-11 19:00:00 to 16-FEB-11 07:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A spotter 1N Summer Lake reported 6.0 inches of snow overnight ending at 16/0700 PST.

Heavy Snow in SOUTH CENTRAL OREGON CASCADES, OREGON
From 15-FEB-11 10:00:00 to 16-FEB-11 10:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A spotter 1SSE Diamond Lake reported 27.0 inches of snow in 24 hours ending at 16/1030 PST.  20.0 inches fell during the day on 02/15, then another 7.0 inches fell overnight.  The cooperative observer at Crater Lake National Park reported 24 hour snow totals of 13 inches at 16/0800 PST, 13 inches at 17/0800 PST, and 12 inches at 18/0800 PST.  The cooperative observer at 3NNW Lemolo Lake reported 16 inches of snow in 24 hours ending at 15/1000 PST, and another 17 inches in 24 hours ending at 16/1000 PST. The cooperative observer at Odell Lake East reported 16.0 inches of snow in 24 hours ending at 15/0800 PST.