NASA sees tropical cyclone 18p form near American Samoa

The low-pressure area that has been lingering west-northwest of American Samoa for several days has organized into a tropical depression. NASA's Terra satellite passed over the Southern Pacific Ocean and provided forecasters ...

NASA finds wind shear doing in Tropical Storm Gabekile

Winds outside of Tropical Storm Gabekile are ripping the storm apart. NASA's Aqua satellite provided a visible image of the storm that showed strong northwesterly wind shear was adversely affecting the storm.