Thursday, May 23 2013 11:50 AM EDT2013-05-23 15:50:16 GMT
TOKYO (APTN/FOX) - An 80-year-old climber became the oldest person ever to climb Mount Everest, despite undergoing heart surgery in January. Japanese mountaineer Yuichiro Miura called his daughter from theMore >>
The old-age ascent is just the latest in a lifetime of daring feats for adventurous Yuichiro Miura.More >>
Thursday, May 23 2013 11:26 AM EDT2013-05-23 15:26:22 GMT
MONTAGUE COUNTY, TX (KTVT/FOX) - A law enforcement officer who took three bullets at close range will return to work Sunday after two months away from the job. Deputy James Boyd pulled over a car MarchMore >>
The officer's bulletproof vest saved his life, but some physical and mental scars will remain visible for a long time.More >>
Wednesday, May 22 2013 5:24 PM EDT2013-05-22 21:24:25 GMT
MOORE, OK (RTV/FOX) - The deadly tornadoes in Oklahoma aren't just taking a toll on people, they're also affecting pets. Many of them have lost their owners and are now housed at a makeshift shelter. TheMore >>
A makeshift animal shelter has cared for between 50 and 60 cats and dogs since Monday, and in some cases there are happy reunions. More >>
Wednesday, May 22 2013 4:03 PM EDT2013-05-22 20:03:31 GMT
DOTHAN, AL (WHDN/FOX) - State health officials said a mysterious respiratory illness has left two people dead and five hospitalized in southeast Alabama. The Alabama Department of Public Health said inMore >>
Two of the seven people already admitted to the hospital have died, and no one knows what is causing the illness.More >>
Tuesday, May 21 2013 2:58 PM EDT2013-05-21 18:58:53 GMT
WASHINGTON, DC (WTTG/FOX) – While preparing for Memorial Day or any other outside activity, many people forget one important thing – sunscreen. Tim Turnham, an expert with the Melanoma Research Foundation, saidMore >>
Cases of melanoma, a type of skin cancer, are growing 2 percent annually for children and 3 percent for adults. The rate has doubled since 1973.More >>
The ingredients for a hurricane include a pre-existing weather disturbance, warm tropical oceans, moisture, and relatively light winds aloft. If the right conditions persist long enough, they can combine to produce the violent winds, incredible waves, torrential rains, and floods we associate with this phenomenon.
Each year, an average of ten tropical storms develop over the Atlantic Ocean, Caribbean Sea, and Gulf of Mexico. Many of these remain over the ocean and never impact the US coastline. Six of these storms become hurricanes each year. In an average 3-year period, roughly five hurricanes strike the US coastline, killing approximately 50 to 100 people anywhere from Texas to Maine. Of these, two are typically "major" or "intense" hurricanes (a category 3 or higher storm on the Saffir-Simpson Hurricane Scale).
What is a Hurricane? A hurricane is a type of tropical cyclone, which is a generic term for a low pressure system that generally forms in the tropics. The cyclone is accompanied by thunderstorms and, in the Northern Hemisphere, a counterclockwise circulation of winds near the earth's surface. Tropical cyclones are classified as follows:
Tropical Depression An organized system of clouds and thunderstorms with a defined surface circulation and maximum sustained winds* of 38 mph (33 kt**) or less.
Tropical Storm An organized system of strong thunderstorms with a defined surface circulation and maximum sustained winds of 39-73 mph (34-63 kt).
Hurricane An intense tropical weather system of strong thunderstorms with a well-defined surface circulation and maximum sustained winds of 74 mph (64 kt) or higher.
Hurricanes are categorized according to the strength of their winds using the Saffir-Simpson Hurricane Scale. A Category 1 storm has the lowest wind speeds, while a Category 5 hurricane has the strongest. These are relative terms, because lower category storms can sometimes inflict greater damage than higher category storms, depending on where they strike and the particular hazards they bring. In fact, tropical storms can also produce significant damage and loss of life, mainly due to flooding.
* Sustained winds A 1-minute average wind measured at about 33 ft (10 meters) above the surface.
** 1 knot = 1 nautical mile per hour or 1.15 statute miles per hour. Abbreviated as "kt".