Saturday, January 20, 2018

[californiadisasters] On This Date In California Weather History (January 20)

2010: 61 mph wind gust (from SE) and 48 mph sustained wind speed (from S) reported at Merced Macready Field Airport (KMCE ASOS) due to an extremely strong low pressure system moving onshore.
Roof damage and trees down throughout much of the San Joaquin Valley were reported this day.

2010: A very wet and dynamic series of storms started on 1/18/2010 and ended on 1/22/2010.
Rainfall ranged from 2"-4" in the deserts, to 4"-8" west of the mountains, to 6"-12" on the coastal slopes.
Widespread flooding resulted across the region.
Snowfall of 40"-60" inches was reported at the higher resorts, with up to seven feet at the highest ski resorts.
Some of the worst flash flooding occurred in the high desert on the 1/21/2010 due to the prolonged heavy rainfall.
Scores of homes and several schools sustained damage, and many roads were washed out in Hesperia, Apple Valley, Victorville and Adelanto.
Numerous swift water rescues were needed, one of which likely saved four teens trapped in a storm water drain.
On 1/19/2010 a tornado went through Seal Beach and Huntington Beach causing local damage including boats in Huntington Harbor, and wind gusts reached 60 mph in San Clemente.
Several waterspouts and very strong winds of 93 mph were also reported in Newport Beach and Huntington Beach.
On 1/21/2010 the surface pressure fell to an all-time record low of 29.15"  (987.1 mb) at San Diego Lindbergh Field, the lowest since reliable pressure records began in 1880.
Two deaths in Tijuana were attributed to the flooding.
A tree fell onto a mobile home in Lakeside, causing one fatality on 1/19/2010.

The morning low temperature of 58° F in Las Vegas, NV, set the all-time warmest January low.

1997: An F0 tornado touched down near Exeter damaging roofs and knocking down trees.

1987: Santa Ana type wind gusts reached 80 mph below Cajon Pass, 70 mph in San Bernardino, 60 mph at Mt. Laguna and 40 mph in El Toro.
Trucks were blown over, thick dust clouds developed, and trees were downed.
A hundred power poles went down in the Inland Empire causing numerous power outages.
Schools closed in Fontana as a result of power outages.
A mobile classroom was knocked over.
Brush fires were started.

1982: A tornado hit Riverside.

1976: It was 85° F at Pismo Beach, setting a monthly record.

1971: Warmest ever in January at Edwards AFB, temperature reached 82° F for a high.

1969: Heavy rains of tropical origin began on 1.18 ended on 1.28.
As much as 50" of rain fell at 7,700 feet. 31" of rain fell on the south slopes of Mt. San Gorgonio, 15.5" at San Jacinto Peak, around 10" at Banning, less than 1" from Indio southeast.
87 were reported dead from flooding and mud slides all over California.
Scores died in traffic accidents.
Hundreds of homes and buildings were destroyed in slides, including 14 destroyed and 11 damaged homes in Mt. Baldy Village.
50 homes near Forest Home (Forest Falls) were damaged by flooding.
Highways and railroads washed out.
Power outages occurred.
Cucamonga Creek itself caused $10 million in damage..
The Mojave River took out numerous bridges and flooded farmlands in the upper desert.

1962: Snow that started on this day and ended on 1.22 reached the lower elevations.
Highways were closed.
27" fell in Big Bear Lake and 24" in Lake Arrowhead over the three days.

1937: The Pinnacles National Monument only hit 36° F making it the lowest high temperature ever recorded there.

1937: Yuma, AZ, sets their all time record low of 22° F.
This record is tied in 1883 and again in 1911.

1937: Boca, California (near Truckee), reported a morning low temperature of -45° F, still the all-time record low for the state of California.

1916: Widespread heavy rains hit Southern California starting on 1.14 and ending on 1.21.
8.5" fell during this period in San Bernardino.
16.71" fell in 24 hours at Squirrel Inn (near Lake Arrowhead) on 1.16 and on 1.17, a record 24 hour rainfall for California until 1943.
More than 9" fell in two storms in the Coachella Valley.
Previous storms had deposited deep snow in the mountains, adding to the runoff.
Widespread flooding resulted and at least 22 died.
Roofs in Chula Vista, poultry farm in Vista, boats in Coronado and Newport were damaged.
Most cities were completely inundated.
Pine trees from Palomar Mountain floated down the San Luis Rey River through Oceanside.
The cities of Indio, Coachella and Mecca were underwater.
Ontario and Redlands were isolated and roads, railroads and bridges were washed out.

1911: Yuma, AZ, sets their all time record low of 22° F.
This record is tied in 1883 and again in 1937

1883: Yuma, AZ, sets their all time record low of 22° F.
This record is tied in 1911 and again in 1937.

Source: NWS San Francisco/Monterey,, Hanford, Reno, Phoenix, & San Diego



Posted by: Kim Noyes <>

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