Like other tropical cyclones, typhoons form when warm, calm ocean waters transfer warmth and moisture to the air above the surface. The air rises into cooler layers of the atmosphere, allowing the water to condense and t... More »

Typhoons form in the tropical oceans when areas of high pressure rush toward areas of low pressure, which creates wind. When the storm begins to rotate and organize around an "eye" of low pressure, it is well on its way ... More »

Tropical cyclones, including hurricanes and typhoons, form when calm, warm ocean waters set up a spiraling convection current in the air above the surface. As warm, moist air rises, cooler air moves in to replace it, cre... More »

Tropical cyclones, including hurricanes and typhoons, form when calm, warm ocean waters set up a spiraling convection current in the air above the surface. As warm, moist air rises, cooler air moves in to replace it, cre... More »

Tropical cyclones form when warm ocean waters heat the air above, causing it to rise and create a low pressure zone. As more air flows in from outside this region, it warms, flows upward and deposits moisture in the form... More »

A tropical storm forms when calm, warm ocean waters warm the air above the surface, creating a convection current. Over time, this current draws moisture and warmth into the upper levels of the atmosphere, creating the r... More »

Tropical cyclones form when ambient atmospheric conditions are ripe for storm development, which includes warm ocean waters, moist mid-tropospheric layers, proximity to the equator and the presence of a pre-existing atmo... More »