2015: An upper low pressure system moved onshore and into Central California during the morning hours.
This lead to light rain to fall across most of the district.
However, there were a few convective showers that lead to some localized heavy rainfall.
A large boulder blocked a roadway near Weldon and there was localized flooding of water in Onyx in Kern County.
Mud and rock washed onto Highway 178, 2 miles east of Canebreak Fire Station in Kern County.
2015: Low pressure leaving Washington on Oct. 2 arrived yesterday (Oct. 4) and through October 6th afflicted the greater metropolitan Las Vegas. NV, Area.
Thunderstorms drenched the far southwest part of the Las Vegas Valley during the evening hours. A total of 2.8" of rain was measured for the date, with most of it falling in just 2 hours, at an automated weather station near 215 and Town Center in Summerlin, NV. A CoCoRaHS observer in the Spanish Trail neighborhood measured a total of 2.61" in a 24 hour period with over 2" falling during the evening of the 5th.
Many streets flooded in the southwest part of the Las Vegas Valley and a number of homes had a few inches of standing water in their yards. Nevada Highway Patrol responded to 76 accidents on this date, with wet weather playing a factor in many.
Earlier in the afternoon, a funnel cloud was photographed near Highway 93 in Arizona not far from the turn off to Willow Beach.
Over the course of the period October 4-6, 2015, there were 23 warnings issued with 45 different reports of flash flooding or severe weather.
Hail was observed in several places across the region, with the largest hail measuring 1.25" just east of Boulder City, NV.
Finally, abundant moisture through the lower and mid levels of the atmosphere indicated a
primed atmosphere for flash flooding.
Flash flooding occurred as a result of heavy thunderstorms over western portions of the Las Vegas valley several hours after this sounding was observed.
2015: An early season storm brought stormy weather to the Mojave Desert.
0.55" of rain fell in 24 hours in Death Valley which tied an all-time record for October.
At least 150 motorists and campers were stranded at the Furnace Creek Visitor Center in the afternoon and into the early evening of this date.
National Trails Highway (Old Route 66) was washed out and covered with mud near Ludlow.
Multiple vehicles were stuck on Highway 95 starting about 10 miles south of Needles due to flooding and the highway was closed due to flooding further south near Vidal Junction.
Goffs Road near Highway 95 was flooded with water stalling a Mercedez-Benz and Goffs Road near Interstate 40 was blocked dirt and rocks and in between these two location Goffs Road was flooded with one vehicle swept into the desert.
2011: An early season winter storm brought as much as 17" of snow to the Sierra Nevada crest and 6-12" at around 7,000 feet elevation.
Thunderstorms dumped 0.52" of rain at Meadows Field, breaking the rainfall record of 0.46" for Bakersfield, set 90 years earlier in 1921. Some convective storm cells even brought snow as low as 4,500 feet near Bass Lake during the afternoon.
Thunderstorms dropped pea-size hail on Ponderosa (in the Tulare County Mountains) and on southwest Fresno during the late morning and early afternoon.
2011: An early season storm raked the Mojave Desert with non-thunderstorm high winds.
58 mph wind gusts were reported 16 miles southwest of Searles Valley with 55 mph winds gusts were reported at Landers, 50 mph winds gusts at Panamint Springs reducing visibility to just a few feet, and at Yucca Valley 3-foot diameter trees were blown over by wind gusts.
2010: An early season storm brought hail to the Bishop area of the Owens Valley.
Marble-sized hail fell on Highway 168 covering the road 1/2" to 3/4" about 8 miles west of Bishop near Starlight.
Penny-sized hail fail south-southeast of Bishop.
Snow flurries were observed mixed with rain on the Valley floor of Yosemite National Park and accumulating snow was reported down as low as 5,000 feet in elevation.
Mineral King reported 4" of snow and Hume Lake received 2.0".
1993: A widespread hail event in western Nevada.
Hail up to 1" in diameter fell in Carson City and Reno, NV.
Hail up to 1.5" in diameter was reported in Virginia City, NV.
1987: Downtown San Francisco reached 102° and Salinas reached 105° F, both setting all-time record highs for the month.
1987: A prolonged period of showers from the remnants of Hurricane Ramon started on this day and ended on 10.12 providing much of the region with daily record rainfall on this day.
Amounts ranged from 0.75" at the coast to 2" in the mountains.
2.14" fell at Camp Pendleton and 0.69" fell at San Diego.
Minor flood damage occurred.
1985: A rapidly moving storm system brought 50 knot wind gusts to Catalina Island, causing nearly 100 boats to pull lose from or drag their moorings.
1980: Fresno reached 101° F for a high temperature making it the 5th day of triple digit high temperatures that month here, a record for October.
1980: It was 85° F in Big Bear Lake and 101° F in Victorville, each the highest temperature on record for October.
In Victorville this also occurred two days previous on 10.3.
1969: The morning low temperature at Reno, NV was 20° F.
1953: It was 106° F in Escondido, the highest temperature on record for October.
This also occurred the previous day on 10/4.
Alpine set arecord high for the month with a reading of 103° F.
1925: 3.24" of rain fell in San Diego, starting on 10.4 and ending on this day, the greatest 24-hour amount on record for October.
2.75" fell in Palm Springs, the greatest daily amount on record for October.
1912: An unusually strong early season storm brought several days of rainy weather, with some of the most intense rain falling on this day.
Julian reported 3.41", while 1.50" fell in Descanso.
Source: NWS San Francisco/Monterey, Hanford, Reno, Las Vegas, & San Diego
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