What is hurricane force winds?
noun. a wind, not necessarily a hurricane, having a speed of more than 72 miles per hour (32 meters per second): the strongest of the winds.
What turns a tropical storm into a hurricane?
The Tropical Storm becomes a Hurricane when the closed circulation becomes an eye and sustained winds reach at least 74 mph. This stage of a hurricane can cause significant damage. From here, Hurricanes are categorized based upon wind speed.
What is the wind speed of severe tropical storm?
SEVERE TROPICAL STORM (STS) , a tropical cyclone with maximum wind speed of 89 to 117 kph or 48 – 63 knots.
What speed does a tropical cyclone become a typhoon or hurricane?
It is a tropical storm when the maximum sustained wind speed is more than 63 km/h. It is then also given a name. Depending on the ocean basins, it is designated either a hurricane, typhoon, severe tropical cyclone, severe cyclonic storm or tropical cyclone when the maximum sustained wind speed is more than 119 km/h.
What causes the winds of a hurricane to be so fast?
The pressure at the ground is determined by the weight of the atmosphere above a point. … So, it is the heat and humidity from the near-ocean air and sea spray that rises high into the hurricane, lowering the surface pressure, and causing winds to blow into the center.
Can 70 mph winds break windows?
A Design Pressure or DP rating measures the strength of a window. Standard residential windows have DP values between 15 and 50. A DP 15 window can reasonably be expected to sustain winds of roughly 77 mph before shattering. A DP 50 window is expected to sustain winds up to 173 mph.
What is the wind speed of a category 6 hurricane?
After the series of powerful storm systems of the 2005 Atlantic hurricane season, as well as after Hurricane Patricia, a few newspaper columnists and scientists brought up the suggestion of introducing Category 6, and they have suggested pegging Category 6 to storms with winds greater than 174 or 180 mph (78 or 80 m/s; …