Typhoon

• Philippine area of responsibility (PAR) is the area where the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) issues weather forecasts, warnings, and advisories.
• Plotting Points is a method to locate places and trace paths.
• Stages of Progression in the development of a tropical cyclone include: Tropical Disturbance, Tropical Depression, Tropical Storm, and Typhoon, Hurricane, or Cyclone.
• Tropical Disturbance is a discrete weather system of cloud, showers, and thunderstorms, with an apparent circulation that originates in the ocean in the tropical region, and remains intact for 24 hours or more.
• Tropical Depression is when the thunderstorms are slightly more organized, resulting in a closed circulation of air in the low levels.
• The winds blow stronger due to the greater convergence that causes quicker decrease in the pressure.
• Tropical Storm receives an official name once sustained winds reach 39mph in the closed circulation.
• Winds increase greatly and can take as little as a half day to as much as couple days.
• Tropical Storm has better organized thunderstorms and when viewed in the satellite, a recognizable pattern of rotation.
• Tropical Storm has more concentrated convection near the center with outer organized rainfall into distinct bands.
• Typhoon, Hurricane, or Cyclone is as the tropical storm grows more intense, it takes more energy from its surroundings, it develops into a “matured” tropical cyclone which can obtain a one-minute wind of at least 74 mph at an elevation of 10 meters.
• Its rotation is now more obvious when viewed in the satellite.
• A circular area of calm winds at the center of the storm, called the eye, may develop in a Typhoon, Hurricane, or Cyclone.
• Super typhoon is a term which means it exceeds the maximum sustained winds of 115 mph.