Tropical Storm revision
How do they form?
earth's rotation (helps form circular motion)
light wind shear (make sure the winds do not rip the storms apart)
thunderstorm cluster
sea temp above 26 degrees c (only occurs in tropical regions)
Characteristics
massive pressure falls
storm surges
torrential rain that can flood and break sewage pipes and flood buildings leaving people homeless
Heavy winds that can rip roofs off of buildings
Irma
LICs such as Cuba were hit with 170 mph winds
Hospitals in BVG have collapsed and cannot be used
water levels rose 2m in 90 mins
First hit key west
Thousands refuged in sports centres
aid from HICs
rebuilding of houses
LICs such as Saint Martin were severely hit leaving 2 dead and 40 injured, people having to be evacuated, Aid from the Netherlands
How do hurricanes reduce in strength
The warm temperature causes the ocean water to evaporate. The moisture is what fuels a hurricane. As the hurricane moves over land, the hurricane is no longer fueled by this moisture. Therefore, the hurricane begins to slow down and die as it moves further inland.
How do they move?
Tropical cyclones initially move westward (owing to easterly winds) and slightly towards the poles. Many tropical cyclones eventually drift far enough from the equator to move into areas dominated by westerly winds (found in the middle latitudes).