In another manifestation of extreme weather conditions, hurricanes as strong as the Category 4 storm Florence are rarely seen so far north, the United Nation's weather agency (WMO) said.
Hurricane Florence is ranked as a category 4 hurricane on the Saffir-Simpson Hurricane Wind Scale. According to the US National Hurricane Center, category 4 hurricanes are ranked as major hurricanes, with winds at 130-156 mph (209-251 km/h), and a likelihood of catastrophic damage.
Hurricane Florence, currently moving West over the northern Atlantic, is currently moving West over the Atlantic Ocean between Bermuda and the Bahamas and is forecast to approach the coast of North Carolina or South Carolina on Thursday.
One of the main dangers from hurricane Florence is the rainfall, added the spokesperson. There is currently a 1-7 day rainfall forecast of more than 10-15 inches (254 to 381 mm).
WMO Secretary-General Petteri Taalas said that the world is seeing the highest worldwide temperatures since records began.
"We have been breaking records in some parts of the world. We have seen heatwaves hitting Japan, Europe especially the northern part of Europe where a large part of the harvest has been lost, and we have seen quite devastating fires hitting Canada and western parts of the USA," he said.
"We just saw a record-breaking typhoon hitting Japan a couple of days ago, the most intense typhoon in Japan for the past 25 years. Japan was also exposed to very intense rainfall, leading to flooding and landslides, with casualties.
Although the early part of the Atlantic hurricane season was quiet, there are now three active hurricanes moving across the ocean (Florence, Isaac and Helene).
There have been 10 other years on record where we have had at least 3 hurricanes simultaneously, most recently last year (Irma, Jose and Katia).
In the Pacific Ocean, Typhoon Manghut, a very strong tropical cyclone and the largest currently active, is expected to impact the northern part of the Philippines later in the week.
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