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The Hurricane Severity Index (HSI) is another scale used and rates the severity of all types of tropical and subtropical cyclones based on both the intensity and the size of their wind fields. [34] The HSI is a 0 to 50 point scale, allotting up to 25 points for a tropical cyclone's intensity and up to 25 points for wind field size. [34]
ESCAP/WMO Typhoon Committee's Tropical Cyclone Intensity Scale; Category Sustained winds Violent typhoon ≥105 knots ≥194 km/h Very strong typhoon 85–104 knots 157–193 km/h Strong typhoon 64–84 knots 118–156 km/h Severe tropical storm 48–63 knots 89–117 km/h Tropical storm 34–47 knots 62–88 km/h Tropical depression
Download QR code ; Print/export ... move to sidebar hide. PAGASA's Tropical Cyclone Intensity Scale [1] [2] Category Sustained winds Super typhoon (STY) ≥185 km/h ...
Common developmental patterns seen during tropical cyclone development, and their Dvorak-assigned intensities. The Dvorak technique (developed between 1969 and 1984 by Vernon Dvorak) is a widely used system to estimate tropical cyclone intensity (which includes tropical depression, tropical storm, and hurricane/typhoon/intense tropical cyclone intensities) based solely on visible and infrared ...
Typhoon Man-yi, known as Pepito in the Philippines, is now the equivalent of a Category 2 hurricane (96-109 mph/154-176 km/h) on the Saffir-Simpson Hurricane Wind Scale and will continue to ...
The scale separates hurricanes into five different categories based on wind. The U.S. National Hurricane Center classifies hurricanes of Category 3 and above as major hurricanes. The Joint Typhoon Warning Center classifies typhoons of 150 mph (240 km/h) or greater (strong Category 4 and Category 5) as super typhoons.
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RSMC Tokyo's Tropical Cyclone Intensity Scale Category Sustained winds Violent typhoon ≥105 knots ≥194 km/h Very strong typhoon 85–104 knots 157–193 km/h Typhoon 64–84 knots 118–156 km/h Severe tropical storm 48–63 knots 89–117 km/h Tropical storm 34–47 knots 62–88 km/h Tropical depression ≤33 knots ≤61 km/h