[californiadisasters] On This Date In CA Weather History (November 20)

2004: Thundersnow started on this evening in the upper desert and snow continued until 11.22.
Widespread reports of two feet with drifts to three feet came from Wrightwood, Lake Arrowhead, Big Bear and the Palm Springs Tramway (at 8,500 feet).
The snow level was as low as 1,000 feet.
18"-20" of snow fell in foothills south of YuccaValley, 14" fell in Phelan, 9"-12" in Hesperia and Apple Valley, 9" in Yucaipa and Calimesa and up to 3" throughout the southern Inland Empire.
Tree damage resulted in lower elevations, which caused house damage and power outages.
Snow lined I-10 near Calimesa for a few days following the end of the snow.

1977: The morning low temperature at Reno, NV was 7°.

1967: A moist subtropical storm system that started on 11.18 ended on 11.21.
14"+ of precipitation fell in the mountains above LA, 7.96" fell in LA.
Flooding was called the "worst since 1934."
Two were killed.
Flash flooding and mud slides resulted.
400 were stranded in the mountains due to closed highways.

1963: Heavy rains hit Southern California with 1.5"-3" on 11.19 and on this day.
2.35" fell in Santa Ana on this day, the greatest daily amount on record for November.
Six were injured in local flooding and numerous traffic accidents.
Strong storm winds downed hundreds of trees and power lines.

1961: A heavy rain fell in the mountains above San Bernardino.
Water and rocky debris came down the canyons into orange groves and Patton Hospital grounds, causing damage to fences and trees.

1956: A strong and prolonged Santa Ana wind event started on 11.19 and ended on 11.29.
On this day a 100 mph gust was recorded at a forest lookout near Saugus.
A fire north of Descanso started on 11.19, killed 11 and burned 44,000 acres.
Two wooden bridges and a power plant were destroyed.

1951: 13" of snow fell at Glenbrook.

1950: Fresno set a record high minimum for the month of November, 62°.
This was tied on November 11, 1973.

Source: NWS Hanford, Reno, & San Diego

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