Wednesday, December 17, 2014

[californiadisasters] On This Date In California Weather History (December 15)

2011: The ground across southwest and south central Arizona remained moist on December 15th, and with light wind and generally clear skies, locally dense fog developed again over the lower Arizona desert during the morning hours.
Although patchy dense fog occurred from Phoenix westward to the lower Colorado river, some of the most dense fog occurred over portions of the southeast greater Phoenix area.
Several trained spotters reported visibility at or below one quarter mile during the morning hours.

A snowstorm of a magnitude that hasn't occurred since 1979 descended on the mountains and high deserts from this day to 12.18.
Impressive snow totals include 54" at Big Bear, almost 36" at Wrightwood, 20" at Pinon Hills, and 16" at Hesperia, Idyllwild and Julian.

1988: Wind gusts estimated at 60-80 mph affected the southern end of the Valley causing blowing dust and sand which resulted in several accidents.
Minor wind damage was also reported.

1987: Strong storm winds of 100 mph were recorded at Wheeler Ridge in the Tehachapi Mountains and up to 80 mph in San Bernardino County.
Up to 70 mph gusts at Pt. Arguello and gusts up to 60 mph gusts were clocked in Orange County and the San Gabriel Mountains.
Avocado crop damage from winds hit Fallbrook.
Over most of San Diego County the dry air led to low temperatures where the wind didn't blow.
It was 13° F in Mt. Laguna, 18° F in Campo, 23° F in Valley Center, 24° F in Escondido, 28° F in El Cajon, 31° F in Del Mar, and 33° F in Chula Vista.

1969: Dense fog in Orange County led to a freeway accident on Interstate 5 involving more than 100 vehicles.

1967: China Lake Naval Air Station measured 1" of snow, earliest inch or more of snow on record.

1967: Heavy rain that began on 12.12 ended on this day.
There were two drowning deaths in San Diego County.
A period of snow in the mountains began on 12.13 and ended on 12.19.
The entire period of snow brought 50" to Mt. Laguna, 38" in Idyllwild, 24" to Palomar Mountain, and 12"-18" to the higher elevations.
4" of snow fell in Victorville, the greatest daily snowfall on record for December, and the third greatest snowfall on record.
2" of snow fell in Borrego Springs, the second greatest daily snowfall on record (only two recorded occurrences of measurable snowfall are on record there; the greatest amount of 4.5" occurred two days previous on 12.13).
One freezing death resulted, numerous schools and highways were closed, transportation was disrupted and there were power outages.
The high temperature in Borrego Springs was 39° F, the lowest high temperature on record.

1963: High of only 39° F in Fresno, setting a record low maximum.
This was one of nine record low maximum temperature records set this month in Fresno.
Of these nine, five still stand in the record books.

1957: The high temperature in Victorville was 32° F, the lowest high temperature on record.
This also occurred previously in the year on 1.30.1957, and on 12.11.1972.

1948: Reno had a morning low of 0° F.

1929: Petaluma received 3.14" of rain.

1912: 12" of snow fell at Glenbrook, NV.

1905: Flood waters from the Colorado River begin flowing into the Salton Sink and California's Imperial and Coachella valleys.
This is the beginning of the present-day Salton Sea.

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



Posted by: Kim Noyes <>

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