Sunday, August 21, 2016

[californiadisasters] On This Date In California Weather History (August 21)

2014: Hail over 1" in diameter fell at the Mt. Laguna Observatory.
A large complex of thunderstorms in the Imperial Valley produced a dust storm,
some call a haboob, that moved up the lower deserts late in the afternoon.
The dust reduced visibility to near zero and knocked down a tree.

Heavy thunderstorms drenched parts of the Kern County mountains in the morning hours.
Piute measured 1.78" of rain.

1982: The high temperature at Reno, NV, was 100° F.

1971: A heavy thunderstorm hit Needles with nearly 2" of rainfall.
Flash flooding and debris flows wiped out several roads and swept several vehicles off roads.

1968: San Jose received 1.92" of rain -- its greatest one day rainfall during the summer months.

1959: It was 45° F in Santa Ana, the lowest temperature on record for August.
This also occurred on 8.17.1918.

1957: A total of 2.58" of rain was officially recorded in Las Vegas, NV, making this the wettest calendar day ever on record for the city.

1934: A tsunami hit San Diego with 20' maximum amplitude from a local sea quake.

1921: The remnants of a tropical cyclone tracked northward into western Arizona from central Baja California generating rainfall of up to 2" in the deserts and southern mountains of southern California on 8.20 and on this day.
This occurred during the La NiƱa of 1920-21.

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



Posted by: Kim Noyes <>

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