South Central Siskiyou County storm history

Climbing conditions were dangerous on Mount Shasta beginning June 4th and continuing through June 5th. It was windy and icy on the mountain during that interval. Three climbers were removed from the mountain at 06/0839 PDT. Two of them were injured and one died. Two more injured …

A spotter ESE Mount Shasta City reported 10 inches of snow in 9.5 hours between 20/0100 and 20/1030 PST, then 10-12 inches in 12 hours ending at 21/0030 PST. Later he reported a total accumulation of 48 inches of snow in 41.5 hours between 19/1700 and 21/1030 PST. A spotter 4SW W…

National Gridded Snowfall Analysis indicated storm totals of 10 to 30 inches at elevations above 3000 feet, except up to 48 inches over the high terrain, including Mt. Shasta. Heavy snow initially fell at elevations above 5500 feet, but impacts increased with falling snow levels …

The National Gridded Snowfall Analysis indicated additional snow on 04/01 of 4 to 10 inches, for a storm total of 6 to 16 inches at elevations above 4000 feet. Additional precipitation amounts in the zone included 0.53 inches at Ash Creek, 0.62 inches at McCloud, 0.25 inches at S…

The National Gridded Snowfall Analysis indicated snow 2 to 6 inches at elevations above 4000 feet. Precipitation amounts in the zone included 0.37 inches at Ash Creek, 0.22 inches at McCloud, 0.36 inches at Snowbrush, 0.17 inches at Mt. Shasta City, and 0.36 inches at Snowman.

The National Gridded Snowfall Analysis indicated storm totals of 8 to 18 inches at elevations below 6000 feet, including amounts of 8 to 14 inches in valleys. Precipitation amounts included 1.55 inches at Mt. Shasta City, 1.68 inches at McCloud, and 1.51 inches at Ash Creek.

The National Gridded Snowfall Analysis indicated additional storm totals of 18 to 60 inches at elevations above 4000 feet, with amounts of 8 to 18 inches near Mt. Shasta City, and 4 to 8 inches down to lowest valley floors. Precipitation amounts in the zone included 4.72 inches a…

National Gridded Snowfall Analysis indicated storm totals of 6 to 24 inches at elevations between 4000 and 6000 feet, with up to 48 inches over the higher terrain, including Mt. Shasta. Precipitation amounts in the zone included 2.79 inches at Mt. Shasta City, 3.27 inches at McCl…

National Gridded Snowfall Analysis indicated storm totals of 3 to 12 inches at elevations above 4000 feet, with highest amounts around Snowmans Hill Summit on Highway 89. Precipitation amounts in the zone included: 1.76 inches at Sand Flat, 1.50 inches at Mt. Shasta City, and 0.9…

National Gridded Snowfall Analysis indicated storm totals of 8 to 18 inches, with highest amounts around Snowmans Hill Summit on Highway 89. Precipitation amounts in the zone included: 1.92 inches at Sand Flat, and 1.45 inches at Mt. Shasta City.

On 07/20/24, reported low temperatures in this zone ranged from 54 to 73 degrees. Reported high temperatures ranged from 94 to 106 degrees. On 07/21/24, reported low temperatures ranged from 54 to 69 degrees. Reported high temperatures ranged from 90 to 103 degrees. On 07/22/24, …

Persistent high pressure brought excessive heat to south central Siskiyou County for 9 consecutive days from July 5th through July 13th. Low temperatures were generally in the mid 50s to lower 70s, and high temperatures in the upper 90s to 105 degrees. But, peak readings were rec…

National Gridded Snowfall Analysis indicated storm totals of 6 to 32 inches at elevations above 5000 feet. Precipitation amounts in the zone ranged from 4.33 inches at North Mt. Shasta City, 4.43 inches at Mt. Shasta City, and 4.51 inches at Snowman.

National Gridded Snowfall Analysis indicated storm totals of 5 to 15 inches at elevations above 4500 feet. Precipitation amounts in the zone ranged from 0.65 inches at Mt. Shasta City to 1.54 inches at Snowman and 1.71 inches at McCloud.

National Gridded Snowfall Analysis and observations indicated storm totals of 8 to 16 inches at elevations above 3500 feet, with the highest amounts on south facing slopes. Precipitation amounts in the zone ranged from 1.91 inches at Snowman to 2.97 inches at Mt. Shasta City.

National gridded snowfall analysis indicated 8 to 17 inches of snow at elevations above 4500 feet. Precipitation amounts in the zone ranged from 1.45 to 3.02 inches.

National gridded snowfall analysis indicated amounts of 6 to 18 inches at elevations above 3500 feet. Precipitation amounts of 0.67 to 1.88 inches were measured.

National Gridded Snowfall Analysis indicated storm totals of 4 to 8 inches. Precipitation of 0.18 to 0.59 inches was measured.

Low temperatures ranged from 24 to 33. It was the first hard freeze of the season for the valleys of south central Siskiyou County. This includes the city of Mt. Shasta, and Dunsmuir.

On 08/13/23, reported low temperatures ranged from 55 to 65 degrees. Reported high temperatures ranged from 93 to 105 degrees. On 08/14/23, reported low temperatures ranged from 54 to 67 degrees. Reported high temperatures ranged from 94 to 103 degrees. On 08/15/23, reported low …

National gridded snowfall analysis indicated 16 to 36 inches of snow. Interstate 5 was closed during 3/28 into 3/29.

National gridded snowfall analysis indicated 8 to 14 inches of snow. This includes a report of 12 inches at the Sand Flat snotel site.

National gridded snowfall analysis indicated 4 to 10 inches of snow. This includes a report of 9 inches at the Sand Flat Snotel site. A chain requirement was in effect for Interstate 5.

National gridded snowfall analysis indicated 6 to 16 inches of snow, Interstate 5 was closed on 3/4 from 914 to 1401 PST.

The national gridded snowfall analysis indicated snowfall of 8 to 18 inches.

Snow in Siskiyou County was heaviest in this zone. The national gridded snowfall analysis indicated amounts of 8 to 18 inches.

Significant snowfall at elevations above 5000 feet. This includes 6 inches reported at the Sand Flat SNOTEL and National Gridded Snowfall estimates of 4 to 10 inches in the zone.

Sand Flat SNOTEL reported 19 inches of new snow with NOHRSC analysis of 16 to 32 inches of snow in the zone at elevations above 4000 feet.

Sand Flat SNOTEL reported 16 inches of new snow with NOHRSC analysis of 8 to 24 inches of snow in the zone at elevations above 4500 feet.

Sand Flat SNOTEL reported 22 inches of new snow with NOHRSC analysis of 20 to 42 inches of snow in the zone at elevations above 3500 feet.

Sand Flat SNOTEL reported 10 inches of new snow with NOHRSC analysis of 10 to 30 inches of snow in the zone at elevations above 4500 feet.

Spotter located 6 miles NW of McCloud reports 21 inches of snow ending at 0800 on 12/10. Also, spotter located 2 SSW of Weed at 3900 feet elevation reports 18 inches of snow ending at 0817 on 12/10.

A spotter 2SSW of Weed reported 11 inches of snow in 6 hours, ending at 01/0300 PST. The event crossed the monthly boundary. An estimated 5.5 inches fell after midnight.

A spotter 2SSW of Weed reported 11 inches of snow in 6 hours, ending at 01/0300 PST. The event crossed the monthly boundary. An estimated 5.5 inches fell before midnight.

Interstate 5 in south central Siskiyou county was closed for approximately 5 hours beginning at 07/2040 PST. This was due to snow on the roadway causing trucks to jackknife and block the road. Interstate 5 was closed again at 08/0840 PST for at least several hours. In addition, a…

Reported low temperatures in this zone ranged from 28 to 35 degrees.

Reported low temperatures in this zone ranged from 27 to 30 degrees.

On 07/25/22, reported low temperatures in this zone were all 54 degrees. Reported high temperatures ranged from 100 to 101 degrees. On 07/26/22, reported low temperatures ranged from 54 to 57 degrees. Reported high temperatures ranged from 95 to 97 degrees. On 07/27/22, reported …

A spotter 3SSE Mount Shasta City reported 14.0 inches of snow in 7 hours ending at 15/1415 PST. The cooperative observer in Mount Shasta City recorded 15.0 inches of snow in 24 hours ending at 16/0900 PST.

A spotter 2SSW Weed reported 5 to 6 inches of snow in around 12 hours, ending at 12/0730 PST.

A spotter 2SSW Weed reported 6.0 inches of snow in around 12 hours, ending at 12/0730 PST. A spotter 6ENE of Mount Shasta City reported 13.0 inches of snow in 24 hours, ending at 12/0900 PST.

Reported low temperatures in this zone ranged from 24 to 37 degrees.

The McCash Wildfire started at 1911 PDT on 07/31/21. It was caused by lightning. As of the last report at 0630 PDT on 10/29/21, the fire had burned 94962 acres and was 100 percent contained. 0 structures had been lost, and 53.3 million dollars had been spent on firefighting effor…

Reported low temperatures in this zone ranged from 29 to 37 degrees.

On 08/10/21, the reported low temperatures in this zone ranged from 49 to 56 degrees and the high temperatures ranged from 95 to 98 degrees. On 08/11/21, the reported low temperatures in this zone ranged from 51 to 55 degrees and the high temperatures ranged from 98 to 99 degrees…

On 07/29/21, the reported low temperatures in this zone ranged from 51 to 57 degrees and the high temperatures ranged from 95 to 100 degrees. On 07/30/21, the reported low temperatures in this zone ranged from 52 to 63 degrees and two stations reported a high temperature of 96 de…

The Bradley fire started on the afternoon of 7/11/2021. The cause was unknown. As of the last report at 0630 PDT on 07/15/21, the fire covered 357 acres and was 100 percent contained. 0 structures were lost, and 900000 dollars had been spent on firefighting efforts.

On 07/09/21, the reported low temperatures in this zone ranged from 51 to 55 degrees and high temperatures ranged from 100 to 103 degrees. On 07/10/21, the reported low temperatures in this zone ranged from 58 to 60 degrees and high temperatures ranged from 103 to 106 degrees. On…

On 06/26/21, the reported low temperatures in this zone ranged from 55 to 58 degrees and the high temperatures ranged from 96 to 100 degrees. On 06/27/21, the reported low temperatures in this zone ranged from 62 to 63 degrees and the high temperatures ranged from 103 to 105 degr…

On 06/20/21, reported high temperatures in this zone ranged from 99 to 100 degrees and the only reported low temperature was 56 degrees. On 06/21/21, high temperatures in this zone were 95 degrees and low temperatures ranged from 49 to 53 degrees.