One of the largest severe weather
outbreaks on record in interior Central California
occurred during the afternoon and evening hours of October
An upper-level low moving inland across Central California
interacted with a surge of tropical moisture, triggering thunderstorms that produced hail in many places as large
as 1" in diameter and gusty winds as well as locally drenching rains.
Hardest hit was the northwest side of the City of Fresno where rainfall totals of 1"-2" were reported and a number of streets flooded quickly during the evening rush hour resulting in a number of stalled vehicles.
Nearly four hours after the thunderstorms had ended some streets in Northwest Fresno were still covered with several feet of water.
In addition, hail ranging from 0.75" to 1" in diameter fell.
The combination of the heavy rain and hail resulted in the collapse of the roof on 80,000 square foot warehouse.
Thunderstorm winds also knocked out power to 18,000 customers in Fresno.
In Tulare County, two houses had trees fall on them causing damage in Visalia and about 200 boats were damaged at a boat dock on Lake Kaweah.
Downed trees were reported in the valley from Merced County to Tulare County and eastward into the Sierra Nevada at Yosemite and Sequoia National Parks. 2000:
Severe thunderstorms produced severe weather
across the central and southern San Joaquin Valley.
0.75" hail fell near Merced and Chowchilla.
Funnel clouds were reported in Hanford, Visalia and Pixley. 1989:
Winds gust to 50 mph at Lebec.1981: 12" of snow fell at Truckee Ranger Station, 11" of snow fell at Donner Memorial State Park and 10" of snow fell at Tahoe City. 1974:
A tornado touched down in Encinitas.
Four inches of snow fell in Palomar Mountain, the greatest daily snowfall on record for October
Santa Barbara hit an overnight low of 31° while Santa Maria reached 26°, both then-record lows for the month. 1971: The morning low temperature at Reno was 8°. 1971:
It was 10° in Big Bear Lake, the lowest temperature on record for October
This also occurred on 10.23.1961.
It was 11° in Idyllwild and 18° in Palomar Mountain, each the lowest temperature on record for October
A very long heat wave that began on 10.20 ended on this day.
A peak temperature of 104° was recorded in San Diego on 10.22.
LA had 10 consecutive days with afternoon highs reaching at least 100°
Fresno recorded its' highest sustained wind on record for the month of October
, 40 mph from the northeast.
"Considerable" damage occurred in the central San Joaquin Valley as a result.1946: Saint Helena had a low temperature of 23°.
Source: NWS San Francisco/Monterey, Hanford, Reno, & San Diego