When do tropical cyclones occur?
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The ocean surface reaches its maximum temperature several weeks after the solar radiation maximum, so most tropical cyclones occur during the late summer to early fall—that is, from July to September in the Northern Hemisphere and from January to March in the Southern Hemisphere.
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An average tropical cyclone can travel about 300 to 400 miles a day, or about 3,000 miles before it dies out. In the northern hemisphere, tropical cyclones occur between June and November peaking...
Tropical cyclones, hurricanes or typhoons form when convection causes warm, moist air above the ocean to rise. They begin as a group of storms when the water gets as hot as 80 °F (27 °C) or hotter. The Coriolis effect made by the Earth’s rotation causes the winds to rotate. Warm air rises quickly.
Tropical cyclone, also called typhoon or hurricane, an intense circular storm that originates over warm tropical oceans and is characterized by low atmospheric pressure, high winds, and heavy rain. Drawing energy from the sea surface and maintaining its strength as long as it remains over warm water , a tropical cyclone generates winds that exceed 119 km (74 miles) per hour.
How tropical cyclones develop Cyclones form between approximately 5° and 30° latitude. Because of easterly winds they initially move westward. They occur most commonly in early autumn as this is...
According to the World Meteorological Organization, cyclones are classified as tropical cyclones and extra-tropical cyclones, depending upon the wind speed. In India cyclones are classified by: (a) strength of associated winds, (b) storm surges, and (c) exceptional rainfall occurrences. Major cyclones in India
Tropical cyclones form only over warm ocean waters near the equator. To form a cyclone, warm, moist air over the ocean rises upward from near the surface. Air from surrounding areas with higher air pressure pushes in to the low pressure area. Then this new “cool” air becomes warm and moist and rises, too.
Other phenomena which can be just as damaging than the wind frequently accompany tropical cyclones: high seas - large waves of up to 15 metres high are caused by the strong winds and are hazardous to shipping; storm surge - a surge of water of up to several metres can cause extensive flooding and ...
Cyclones form and intensify when they are located on tropical or subtropical oceans in both hemispheres, where the rotation force of the earth (Coriolis) is strong enough to initiate the rotation movement around the low-pressure center and whose surface water temperatures are 27° C or warmer.
Tropical Storm: A tropical cyclone with maximum sustained winds of 39 to 73 mph (34 to 63 knots). Hurricane: A tropical cyclone with maximum sustained winds of 74 mph (64 knots) or higher. In the western North Pacific, hurricanes are called typhoons; similar storms in the Indian Ocean and South Pacific Ocean are called cyclones.
Cyclones occur in the summer wet season. This means they tend to occur between November and April, with the greatest probability being between December and February.