Thursday, October 17, 2019

[CaliforniaDisasters] On This Date In California Weather History (October 17)

2015: A brief landspout touched down in Menifee (Riverside Co.) with no serious damage.

2010: An upper-level low pressure area brought precipitation and cooler temperatures to interior central California beginning October 16th. Temperatures dropped as much as 14 degrees from the 16th to the 17th, as a strong push of cold air moved into the San Joaquin Valley.
The trough triggered thunderstorms across the region on October 17th, and one thunderstorm at Lebec generated hail up to an inch in diameter, which is the size of quarters.
Hail of this size can cause extensive property damage and be life threatening.
Elsewhere, another thunderstorm blew down trees and power lines in the vicinity of David Road and CA Highway 99.

2010: After years of drought and increased water demand, Lake Mead drops to its lowest level since it was first filled in 1937.
The lake reached 1083.18 feet on this date.

2005: Weak low pressure off the Southern California Coast entrained tropical moisture that resulted numerous rainfall report of 2.5"-3" of rain in the Kern County Mountains around Frazier Park from the evening of the 17th into the morning of the 18th.
Numerous locations around Kern County had flooding but especially hard-hit was the Frazier Park area with flooded homes leading to the evacuation of at least 20 people and mudslides along the northbound portions of Interstate Highway-5.
Cuddy Creek through Frazier Park overflowed putting more than a foot of water and mud over the roadway at several locations with reports of the 4-foot deep water in the northern portions of the community.
Heavy rainfall resulted in substantial water runoff onto the Southeast Kern Desert.
State Highway 14 was impacted by water and mud over the roadways as well as upstream, smaller roadways.
Rainfall amounts reported in the Kern Desert included 2.37" and 2.55" around Rosamond, 1.83" at Boron, and 1.16" at Mojave.  


2005: A supercell thunderstorm produced penny size hail in Yorba Linda. Meanwhile,another storm dropped 1.7" of rain on Thermal, setting a daily record for the month of October.

2004: A significant early snowfall occurred in the Southern Sierra Nevada Mountains of Central California October 17-18. 
Precipitation amounts included 16" of new snow at Agnew Pass; 14" at Upper Burnt Corral; 13" at Green Mountain; 11" at Blackcap Basin; and, 7" at Farewell Gap (Tulare County Mountains).

2004: A tornado hit Oceanside.
It was a waterspout that came ashore.
Damage was done to structures, trees, windows,
and an elementary school was damaged.
Another funnel cloud occurred off Encinitas' Moonlight Beach.
This was the first day with measurable rain in San Diego since 4.17.
A streak of 182 consecutive days of no measurable rain, the
longest on record, ended on 10.16.
Incredibly, this rain was the start of the wettest October on record.

1984: Santa Cruz received 3" of rain.

1984: Described as "the worst October storm in 20 years" in Yosemite National Park, heavy snow and strong winds struck the area.
Two climbers near the top of El Capitan were killed and 5 others were stranded in the park.
Up to 25" of snow fell in just 12 hours.

1959: Bakersfield had its latest 100° F day.

1948: 1.48" of rain fell in Borrego Springs, the greatest daily amount on record for October.

1936: 3.77" of rain fell in Escondido, the greatest daily amount on record for October.

1908: 7" of snow fell at Minden, NV.

1893: The morning low temperature at Reno, NV was a very cold 10° F.

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