Tuesday, February 28, 2012
[californiadisasters] On This Date In CA Weather History (February 27)
2010: A tsunami was generated from a Chile earthquake of M8.8. Sections of a Shelter Island dock were damaged. Several vessels broke moorings in San Diego Bay.
2001: A thunderstorm produced dime size hail in Mira Mesa.
Eight inches of graupel (soft hail) piled up on I-15 there causing immense traffic delays.
Several funnel clouds were observed in Escondido.
A waterspout was observed ten miles west of San Diego - Lindbergh Field.
It snowed 12 inches at Palomar Mountain, the greatest daily snowfall on record for February.
This also occurred on 2.13.1973 and 2.19.1962.
2000: A line of severe thunderstorms spawns four F0 tornadoes and three episodes of 3/4-inch hail across western and central Fresno and Madera counties.
The hail caused a multiple car accident on Highway 99 in Madera County.
These were the last tornadoes to hit the Central California Interior in the 20th Century.
1.87 inch of rain fell at the Fresno Yosemite Airport, for the wettest day in February at Fresno.
1996: A storm that started on 2.25 and ended on 2.28 produced 0.5 to 1.5 inches of rainfall in coastal areas.
Snowfall of ten inches was recorded at Idyllwild, two inches in Yucaipa and even a dusting in Hemet and Corona.
One to two feet of snow fell in the higher mountains and up to six inches fell in the high desert.
1991: Several multi-vehicle pile-ups occurred on Highway 58 about 4 miles east of Bakersfield due to near zero visibility from blowing dust.
The largest involved 70 vehicles and resulted in 36 injuries, 8 of which were serious.
1991: A series of storms that started on this day and ended on 3.1 produced three to six inches of rainfall at lower elevations and 11 to 14 inches of precipitation in the mountains. Two died and six were injured.
Hazards included urban flooding, mudslides, and road washouts.
Flood waters were five feet deep at Desert Hot Springs.
Two to three feet of snow were dumped on the Big Bear area and up to two feet fell elsewhere in the mountains.
Highways were closed.
1989: It was 95° in Borrego Springs, the highest temperature on record for February.
1988: Gusty southeast winds caused minor damage to an aircraft and other structures at the Chowchilla Airport.
1986: It was 99° in Palm Springs, the highest temperature on record for February.
This also occurred on 2.26.1986.
1983: Heavy rain that started on 2.24 and ended on 2.28 brought extensive street flooding.
Damage was done to 30 cars and an apartment building in Anaheim.
1971: Santa Maria set a monthly record low of 22°.
1962: The morning low at Truckee was -23°.
The low at Portola was -20°, and at Tahoe City the low was -10°.
1957: A heavy rainstorm drenched the Southland.
Burn areas from fires the previous November in the San Bernardino foothills led to severe debris flows and flash floods into Highland.
A block of homes were inundated as well as most of a school grounds.
City Creek ran black from ash and soot.
1955: 25.0 inches of snow fell at Truckee, with 15.0 inches of snow being reported at Glenbrook.
1951: It snowed 1.5 inches in Victorville, the greatest daily snowfall on record for February.
1938: Storms of tropical origin that started on this day ended on 3.4.
One was killed by lightning in Corona.
11.06 inches of rain fell at LA.
More than 30 inches fell at several mountain stations of the San Gabriel and San Bernardino Mountains (32.2 inches at 8,300 feet elev.).
More than 22 inches fell in the Santa Ana River headwaters.
Considerable snow was melted, adding to the runoff.
This led to unprecedented flood control efforts, including a network of dams and canals and concrete channels.
For the storm 210 were reported dead or missing in flooding across Southern California, 45 in Orange County, of which 43 perished in Mexican-American Atwood from an eight-foot wall of water.
Hundreds were injured.
The Santa Ana River flooded, inundating nearly all of northern Orange County.
Catastrophic damage hit more than 1,500 residences.
400 cabins and buildings were washed away in and around San Antonio Canyon.
The Whitewater River flooded, isolating Palm Springs.
1891: Heavy rains over two weeks caused immense damage in San Diego and catastrophic damage in Tijuana.
The worst was flooding along the Tijuana River where all structures were swept away and a man was killed.
Three prospectors died at Table Mountain in Baja California.
Source: NWS Hanford, Reno, & San Diego
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[Geology2] Much more tsunami debris expected to reach N. America: Environment | Alaska news at adn.com
Much more tsunami debris expected to reach N. America
Associated Press
Published: February 28th, 2012
HONOLULU -- Tsunamis generated by the magnitude-9 earthquake in Japan last March dragged 3 million to 4 million tons of debris into the ocean after tearing up Japanese harbors and homes.
Scientists believe ocean currents are carrying some of the lumber, refrigerators, fishing boats and other objects across the Pacific toward the United States.
One to 5 percent of the 1 million to 2 million tons of debris still in the ocean may reach Hawaii, Alaska, Oregon and Washington and British Columbia, said University of Hawaii senior researcher and ocean current expert Nikolai Maximenko.
That's only a portion of the 20 million to 25 million tons of debris the tsunamis generated altogether, including what was left on land.
Maximenko plans to discuss Tuesday at a news conference his latest estimates for where the debris is and when it may wash ashore. Last year, his team estimated debris could arrive in Hawaii in early 2013.
Some debris appears to have already arrived in the U.S., like a half-dozen large buoys suspected to be from Japanese oyster farms found in Alaska late last year.
Nicholas Mallos, conservation biologist and marine debris specialist for the Ocean Conservancy, said many of the objects are expected to be from Japan's fishing industry. The conservancy is hosting the news conference.
Fishing gear could harm wildlife, such as endangered Hawaiian monk seals, if it washes up on coral reefs or beaches.
"The major question is how much of that material has sank since last year, and how much of that remains afloat or still in the water column," Mallos said.
It's unclear whether items like refrigerators will make it across because there's little precedent for such things in the ocean.
Computer models created by the University of Hawaii indicate the debris is spread far apart across thousands of miles from the eastern coast of Japan to an area some 1,000 miles north of the Hawaiian Islands.
"The debris field is largely dispersed over a large area. And because of that dispersion, we can no longer rely on satellite imagery to track the debris," Mallos said.
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