REPORTS OF TORNADOES INCREASE, EVEN IN CALIFORNIA.Byline: Associated Press Associated Press: see news agency.
Associated Press (AP)
Cooperative news agency, the oldest and largest in the U.S. and long the largest in the world.
Californians bracing for earthquakes should consider preparing for times when they'll have to batten down the hatches (Naut.) to lay tarpaulins over them, and secure them with battens.
See also: Hatch .
The number of tornadoes reported in California has more than doubled in the past 10 years, according to the National Centers for Environmental Prediction The United States National Centers for Environmental Prediction delivers national and global weather, water, climate and space weather guidance, forecasts, warnings and analyses to its Partners and External User Communities. .
An average of 13 tornadoes a year were reported from 1990 to 1994, while an average of six a year were reported in the 1980s, according to the Kansas City-based National Centers for Environmental Prediction.
California weather forecasters for decades wouldn't take tornado reports seriously, says Jack Hales of the National Centers, a branch of the U.S. Commerce Department that issues severe storm warnings.
"There's a mind-set of people in the West that tornadoes are something that occur in the Plains," says Hales, who has researched the frequency of California twisters.
However, the actual number of tornadoes may not be increasing. It could be that there are simply more people around to see and record them - the result of population growth and growing scientific interest.
"I saw a tornado blow a tractor maybe 50, 60 feet in the air at Chowchilla in 1991," says Steve Johnson of Fresno, who helped organize the Association of Central California Weather Observers. The 5-year-old group claims almost 200 members.
The world's strongest tornadoes occur in the Midwest, where they feed off abundant warm, moist air flowing inland from the Gulf of Mexico Noun 1. Gulf of Mexico - an arm of the Atlantic to the south of the United States and to the east of Mexico
Golfo de Mexico
Atlantic, Atlantic Ocean - the 2nd largest ocean; separates North and South America on the west from Europe and Africa on the east .
California tends to lack a steady source of hot and humid air, so its tornadoes tend to be weaker, smaller and shorter-lived. Most California tornadoes have winds of less than 100 mph, compared with vicious Midwest storms with winds exceed 200 mph.
Nationwide, the number of tornado reports has skyrocketed since the early 1950s - from 200 in 1950 to more than 1,000 a year in the early 1990s.
Decades ago, most Central Valley tornadoes were obscured by clouds and rain in remote corners of farmlands. They damaged little more than anthills or irrigation irrigation, in agriculture, artificial watering of the land. Although used chiefly in regions with annual rainfall of less than 20 in. (51 cm), it is also used in wetter areas to grow certain crops, e.g., rice. networks.
But with increasing valley development, experts say it's just a matter of time before someone in California is killed by a twister.
"We've been remarkably fortunate (in California) and there's no reason to presume that good fortune will continue indefinitely," Warren Blier, an assistant professor of atmospheric science at the University of California, Los Angeles UCLA comprises the College of Letters and Science (the primary undergraduate college), seven professional schools, and five professional Health Science schools. Since 2001, UCLA has enrolled over 33,000 total students, and that number is steadily rising. , told the San Francisco Examiner The San Francisco Examiner is a U.S. daily newspaper. It has been published continuously in San Francisco, California, since the late 19th Century. History
The beginning of the Examiner is a topic of some controversy. .
"I would suspect that at some point somebody is going be killed by a tornado in California, especially in the greater Los Angeles and Orange County areas because of the high urban density," Blier said.
Findings on the cause of tornadoes will be discussed starting Monday at the American Meteorological me·te·or·ol·o·gy
The science that deals with the phenomena of the atmosphere, especially weather and weather conditions.
[French météorologie, from Greek Society's Conference on Severe Local Storms at the Cathedral Hill Hotel in San Francisco.