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Tell us what you think about this page!…Signs of an Approaching Storm
Some tornadoes strike rapidly, without time for a tornado warning, and sometimes without a thunderstorm in the vicinity. When you are watching for rapidly emerging tornadoes, it is important to know that you cannot depend on seeing a funnel: clouds or rain may block your view. The following weather signs may mean that a tornado is approaching:
A dark or green-colored sky.
A large, dark, low-lying cloud.
Large hail.
A loud roar that sounds like a freight train.
If you notice any of these weather conditions, take cover immediately, and keep tuned to local radio and TV stations or to a NOAA weather radio.
NOAA Weather Radios
NOAA weather radios are the best way to receive warnings from the National Weather Service. By using a NOAA weather radio, you can receive continuous updates on all the weather conditions in your area. The range of these radios depends on where you live, but the average range is 40 miles. The radios are sold in many stores. The National Weather Service recommends buying a radio with a battery backup (in case the power goes off) and a tone-alert feature that automatically sounds when a weather watch or warning is issued.
Sighting a Funnel Cloud
If you see a funnel cloud nearby, take shelter immediately (see the following section for instructions on shelter). However, if you spot a tornado that is far away, help alert others to the hazard by reporting it to the newsroom of a local radio or TV station before taking shelter as described later. Use common sense and exercise caution: if you believe that you might be in danger, seek shelter immediately.
Taking Shelter
Your family could be anywhere when a tornado strikes–at home, at work, at school, or in the car. Discuss with your family where the best tornado shelters are and how family members can protect themselves from flying and falling debris.
The key to surviving a tornado and reducing the risk of injury lies in planning, preparing, and practicing what you and your family will do if a tornado strikes. Flying debris causes most deaths and injuries during a tornado. Although there is no completely safe place during a tornado, some locations are much safer than others.
At Home
Pick a place in the home where family members can gather if a tornado is headed your way. One basic rule is AVOID WINDOWS. An exploding window can injure or kill.
The safest place in the home is the interior part of a basement. If there is no basement, go to an inside room, without windows, on the lowest floor. This could be a center hallway, bathroom, or closet.
For added protection, get under something sturdy such as a heavy table or workbench. If possible, cover your body with a blanket, sleeping bag, or mattress, and protect your head with anything available–even your hands. Avoid taking shelter where there are heavy objects, such as pianos or refrigerators, on the area of floor that is directly above you. They could fall though the floor if the tornado strikes your house.
In a Mobile Home
DO NOT STAY IN A MOBILE HOME DURING A TORNADO. Mobile homes can turn over during strong winds. Even mobile homes with a tie-down system cannot withstand the force of tornado winds.
Plan ahead. If you live in a mobile home, go to a nearby building, preferably one with a basement. If there is no shelter nearby, lie flat in the nearest ditch, ravine, or culvert and shield your head with your hands.
If you live in a tornado-prone area, encourage your mobile home community to build a tornado shelter.
On the Road
The least desirable place to be during a tornado is in a motor vehicle. Cars, buses, and trucks are easily tossed by tornado winds.
DO NOT TRY TO OUTRUN A TORNADO IN YOUR CAR. If you see a tornado, stop your vehicle and get out. Do not get under your vehicle. Follow the directions for seeking shelter outdoors (see next section).
Outdoors
If you are caught outside during a tornado and there is no adequate shelter immediately available–
Avoid areas with many trees.
Avoid vehicles.
Lie down flat in a gully, ditch, or low spot on the ground.
Protect your head with an object or with your arms.
Long-Span Buildings
A long-span building, such as a shopping mall, theater, or gymnasium, is especially dangerous because the roof structure is usually supported solely by the outside walls. Most such buildings hit by tornados cannot withstand the enormous pressure. They simply collapse.
If you are in a long-span building during a tornado, stay away from windows. Get to the lowest level of the building–the basement if possible–and away from the windows.
If there is no time to get to a tornado shelter or to a lower level, try to get under a door frame or get up against something that will support or deflect falling debris. For instance, in a department store, get up against heavy shelving or counters. In a theater, get under the seats. Remember to protect your head.
Office Buildings, Schools, Hospitals, Churches, and Other Public Buildings
Extra care is required in offices, schools, hospitals, or any building where a large group of people is concentrated in a small area. The exterior walls of such buildings often have large windows.
If you are in any of these buildings–
Move away from windows and glass doorways.
Go to the innermost part of the building on the lowest possible floor.
Do not use elevators because the power may fail, leaving you trapped.
Protect your head and make yourself as small a target as possible by crouching down.
Shelter for People with Special Needs
Advance planning is especially important if you require assistance to reach shelter from an approaching storm (see specific instructions in the next section).
If you are in a wheelchair, get away from windows and go to an interior room of the house. If possible, seek shelter under a sturdy table or desk. Do cover your head with anything available, even your hands.
If you are unable to move from a bed or a chair and assistance is not available, protect yourself from falling objects by covering up with blankets and pillows.
If you are outside and a tornado is approaching, get into a ditch or gully. If possible, lie flat and cover your head with your arms.
USA Today, 5/12/08: There is no “tornado season” as such, but twisters are more likely at certain times of the year in certain areas. This is because uneven heating of Earth’s surface creates seasons of advancing warmth and lingering chill that define battlegrounds where thunderstorms that can spawn tornadoes are more likely erupt.
Time of day of peak tornado occurence
Similarly, uneven heating throughout the day leads to times each afternoon when tornadic thunderstorms are more likely. But the peak time of tornado occurrence during the day across the nation only loosely corresponds to this, and some places — such as in the South — also have a significant number of tornadoes in the morning hours, which corresponds to the arrival of lines of thunderstorms that formed farther west the previous afternoon.
Intro: A long time ago, during the Vietnam War there was rioting in the streets as anti-war protesters fought with Mayor Dailey’s police in Chicago at the Democratic National Convention. The media were blitzing the airwaves with the protesters’ warning: “The whole world is watching,” as their heads rammed into the nightsticks of the cops. This should be a an alarum to the pseudo-generals in Burma. The whole world is watching as they continue to commit their crimes against humanity.
NY Times, 5/12/08: When one of Myanmar’s best-known movie stars, Kyaw Dhyu, traveled through the Irrawaddy Delta in recent days to deliver aid to the victims of the May 3 cyclone, a military patrol stopped him as he was handing out bags of rice.
“The officer told him, ‘You cannot give directly to the people,” said Tin Win, the village headman of the stricken city of Dedaye, who had been counting on the rice to feed 260 refugees who sleep in a large Buddhist prayer hall.
The politics of food aid — deciding who gets to deliver assistance to those homeless and hungry after the cyclone — is not just confined to the dispute between Myanmar’s military junta and Western governments and outside relief agencies.
Even Myanmar citizens who want to donate rice or other items have in several cases been told that all assistance must be channeled through the military. That restriction has angered local government officials like Tin Win who are trying to help rebuild the lives of villagers. He twitched with rage as he described the rice the military gave him.
“They gave us four bags,” he said. “The rice is rotten — even the pigs and dogs wouldn’t eat it.”
He said the United Nations High Commissioner for Refugees had delivered good rice to the local military leaders last week but they kept it for themselves and distributed the waterlogged, musty rice. “I’m very angry,” he said, adding an expletive to describe the military.
At least 1.5 million people were severely affected by the hurricane, and outside relief agencies fear the officially reported deaths, which rose on Sunday to more than 28,000, could escalate if the military did not allow foreign aid to flow in. But more than a week after the hurricane hit, the junta was still permitting only a few planeloads of supplies to land and was refusing to grant visas to most foreign aid workers.
For the generals, who have held power for more than four decades in Myanmar, the restrictions on aid and how it is distributed are part of their overriding priority of showing who is in control and of cultivating the image that they alone are the nation’s benevolent providers.
While the generals have permitted some token relief efforts by wealthy citizens, who could be seen Sunday handing out sweets and instant noodles from their cars to destitute families lining the roads near Yangon, the largest city, and elsewhere, the junta is clearly not allowing some prominent domestic donors to help for political reasons.
Kyaw Dhyu, for example, is perceived as unfriendly to the military because he assisted monks who protested against the government during the demonstrations last year — and was jailed for a month.
The military also appears to be trying to minimize any foreign presence or role in the relief effort. The United Nations World Food Program said Sunday that only one visa had been approved of 16 requested. The aid group World Vision said it had requested 20 visas but received 2. Doctors Without Borders, the French medical aid group, said it was still awaiting approval of dozens of visa applications for technical support staff aid coordinators.
Paul Risley, a spokesman for the World Food Program, said the volume of aid allowed by the Myanmar junta into the country amounted to one-tenth of what was needed.
The authorities here have agreed to permit a United States Air Force C-130 transport full of relief supplies to come on Monday. The plane was scheduled to leave Utapao airport in Thailand at midday, said a spokesman for the United States Pacific Command, Cmdr. Jeffrey A. Breslau. An American official in Yangoon confirmed that the plane as enroute and due to arrive Monday afternoon.
In Yangon, where 70 percent of the trees were uprooted by the storm, residents were struggling to return to some semblance of normality but most remained without power. In the street markets and stores, the prices of rice and candles have doubled and the cost of gasoline has tripled. The price of corrugated tin, used for roofing, has also doubled.
Privately, some residents showed flashes of resentment toward the military for monopolizing the distribution of basic necessities. “These military men are notorious,” said a college student in Yangon whose family had to buy seven panels of corrugated tin to repair their roof. “They get these supplies free. They are donated by other countries, then the military receives them and sells them to the people.”
Here in Ma Ngay Gyi, in the farthest southern reaches of the delta, a reporter was detained for an hour and a half on Sunday by soldiers who said they had orders to report foreigners in the area.
In what was emblematic of the wider tensions over the issue of aid distribution, an argument broke out in the village between the soldiers, who said any foreigner was suspect, and the village headman, Myint Oo, who solicited aid from the visitor for the rebuilding of a school flattened by the cyclone.
“The government told us that school must reopen June 1, if you have a schoolhouse or not,” Myint Oo told his visitor. “‘Teach under a tree if you have to,’ they said.”
When he began describing the devastation to the school and village, a portly man in a white T-shirt who also seemed to hold a position of power interrupted.
“Don’t tell these foreigners anything,” the man said.
Myint Oo replied that he wanted to talk to the visitors in the hope that they could help rebuild the village.
“They will send the facts to the world and show the weakness of the Myanmar government,” said the man in the white shirt.
He looked directly at Myint Oo and said in a loud voice, “Come outside!”
More than 250 people were killed by the cyclone in the village, which is reachable only by boat, and the stench of death lingers in the surrounding canals. Men in the village rushed to the reporter’s arriving boat and made the universal gesture of food, putting pinched fingers up to their lips.
As the visitors departed, a village woman asked a soldier holding an AK-47 assault rifle why they had detained the foreigners.
“These are orders,” the soldier replied. “Be quiet.”
The USA has been ravaged through mid-May by a near-record number of tornadoes that has pushed the death toll — including 47 killer twisters over the weekend — to a 10-year high.
The deaths of 98 people attributed to tornadoes this year has made 2008 the deadliest year thus far for tornadoes since 1998 and the seventh deadliest since modern recordkeeping began in 1950, The Weather Channel said.
Such a rate could make 2008 the year with the most tornadoes since 1950.
Storms remained active Sunday night as they swept eastward. The National Weather Service said tornado watches were in effect for southern Georgia into northern Florida, as well as south central Virginia, much of North Carolina and northern South Carolina.
The National Weather Service takes weeks to confirm actual numbers of tornadoes but The Weather Channel said it believes there were 47 separate twisters as of May 11 putting the count for the year at 636. That is second only to the No. 1 year of 1999, when 669 tornadoes hit through the same date, Forbes said.
As for deaths by tornado, this year has seen the most through May 11 since 115 were killed by tornado in 1998, Forbes said. That year ended with 130 total deaths because of tornadoes.
Meteorologists say wind conditions and weather patterns have been ideal for creating twisters this year.
The jet stream, a shifting river of air at high altitudes, has been moving from the southwestern USA toward the Great Lakes and pulling moist air from the Gulf of Mexico.
The contrast between the warm southern air and cold air aloft creates winds that can spin turn into twisters.
“We’ve had a very strong contrast in temperatures with cold air from the north, warm moist air from the Gulf of Mexico, and with that clash of air masses … (it) produces tornado outbreaks,” said Andrew Orrison, meteorologist at the National Weather Service’s national office at Camp Springs, Md.
Tornado season generally begins late winter and lasts through mid-summer. May is peak tornado period for the Southeast; the season then cranks up through July in the upper Midwest and northern Plains states.
Some southern states have been particularly hard hit this year.
Before this weekend’s storms, Forbes said Mississippi already had 49 tornadoes, exceeding the average over the past decade of 39 twisters for the entire year.
Alabama has had 45 twisters, exceeding its yearly average of 42, and Arkansas has had 49, already above its annual average of 48, Forbes said.
“We have quite a few states already above average for the year, and obviously the year is not nearly done,” Forbes said.
“We are on a pace that continues a record number” of twisters, said Greg Forbes, severe weather expert at The Weather Channel.
Violent storms over the weekend that spawned tornadoes left at least 22 people dead from the southern Plains states eastward to Georgia, including seven deaths in the tiny town of Picher, Okla., and 10 deaths in nearby Seneca, Okla.
70 km (45 miles) WNW of Chengdu, Sichuan, China
140 km (85 miles) WSW of Mianyang, Sichuan, China
340 km (210 miles) WNW of Chongqing, Chongqing, China
1530 km (950 miles) SW of BEIJING, Beijing, China
This table shows that a magnitude 7.2 earthquake produces 10 times more ground motion than a magnitude 6.2 earthquake, but it releases about 32 times more energy. The energy release best indicates the destructive power of an earthquake.
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