TS - Tropical Storm 74 to 111kph
STS - Severe Tropical Storm 102 to 184kph
T - Typhoon 120 to 176kph
ST - Super Typhoon
VST - 157 to 222kph VT violent typhoon
CLASSIFICATION OF TROPICAL CYCLONES
Tropical cyclones derive their energy from the latent heat of condensation which made them exist only over the oceans and die out rapidly on land. One of its distinguishing features is its having a central sea-level pressure of 900 mb or lower and surface winds often exceeding 100 knots. They reach their greatest intensity while located over warm tropical waters and they begin to weaken as they move inland. The intensity of tropical cyclones vary, thus , we can classify them based upon their degree of intensity.
The classification of tropical cyclones according to the strength of the associated windsas adopted by PAGASA as of 23 March 2022 are as follows:
TROPICAL DEPRESSION (TD) - a tropical cyclone with maximum sustained winds of up to 62 kilometers per hour (kph) or less than 34 nautical miles per hour (knots) .
TROPICAL STORM (TS) - a tropical cyclone with maximum wind speed of 62 to 88 kph or 34 - 47 knots.
SEVERE TROPICAL STORM (STS) , a tropical cyclone with maximum wind speed of 87 to 117 kph or 48 - 63 knots.
TYPHOON (TY) - a tropical cyclone with maximum wind speed of 118 to 184 kph or 64 - 99 knots.
SUPER TYPHOON (STY) - a tropical cyclone with maximum wind speed exceeding 185 kph or more than 100 knots.
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