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normal activity relative to the 1980-2010 long-term average of 12. This figure is in addition to Tropical Storm Ana which occurred in May 2015, outside the forecast period. The most likely number of hurricanes (winds of at least 74 mph) predicted to occur in the North Atlantic during the June

of the weekend with sunshine and showers, the heaviest of the showers being in the north. So far this autumn, hurricanes have rarely been out of the headlines, as they have brought devastation to parts of the Caribbean and the southern United States. These systems often head north out of the tropics, but when

. It typically moves forward at speeds of 10-15 m.p.h., but can travel as fast as 40 m.p.h. At its very early and weak stages it is called a Tropical Depression. When the winds reach 39 m.p.h. it is called a Tropical Storm. If the wind should reach 74 m.p.h. or more the tropical storm is called a Hurricane

to the 1980-2010 long-term average of 12. The most likely number of hurricanes predicted to occur in the North Atlantic during the June to November period is 9, with a 70% chance that the number will be in the range 4 to 14. This represents above normal activity relative to the 1980-2010 long-term

and had developed a clear, well-defined eye structure. Wind speeds were measured by the ASCAT satellite instrument* to be at Tropical storm intensity, sustaining winds of 55 knots (63 mph). The system soon lost its Hurricane-like appearance but went on to cause heavy rainfall and flooding over Greece

Office (June-issued) seasonal forecast for 2009 3.1 Observed tropical storm activity During July–November 2009, 9 tropical storms formed (of which 3 became hurricanes) with a total ACE index of 52.4. Thus in terms of ACE index the season was indeed the least active for over a decade, and the second

, a shift in the weather pattern is set to bring a mix of rain, wind, and uncertainty to different parts of the country. High pressure moves east as Hurricane Gabrielle approaches the Azores Hurricane Gabrielle is currently passing over the Azores, bringing the potential for significant impacts from

. By the second half of next week, Hurricane Kirk, which is currently in the Atlantic is introducing some uncertainty to the extended range forecast. Tony Wisson explains the challenges of the current forecast. He said: “Hurricane Kirk is currently in the tropical Atlantic. It is expected to move

. The indication for above-normal activity is consistent with the predicted evolution of ENSO to La Niña conditions by July 2010 and a continuation of the present above-normal sea surface temperatures (SSTs) in the tropical North Atlantic into the peak of the hurricane season. The dynamical prediction

for the vast majority, the eyes of forecasters are drawn west from Tuesday as Ex-Hurricane Erin is likely to exert some influence over the UK’s weather through the middle of next week. Met Office Deputy Chief Meteorologist Tony Wisson is assessing the medium-range forecast. He said: “There’s still a lot