Tropical Storm Ernesto was an unwelcome visitor in St. Lucia

The fifth Atlantic Ocean tropical depression strengthened into Tropical Storm Ernesto on Thursday, August 2 at 5 p.m. EDT and tracked over St. Lucia early on August 3. NASA's Terra satellite captured an image of Ernesto from ...

Lightning detected from space can indicate thundercloud height

High within towering thunderclouds, a distinct form of intracloud lightning, known as "narrow bipolar pulse" discharges, can occur. Like other forms of lightning, narrow bipolar events (NBE) can be either negative or positive ...

NASA sees Tropical Cyclone Bavi losing steam

Tropical Cyclone Bavi's convection and developing thunderstorms have been waning because of wind shear, and NASA's Aqua satellite provided an infrared look at the weakening storm.

NASA sees a re-strengthened Tropical Storm Kai-Tak

NASA's Aqua satellite passed over the South China Sea and infrared imagery showed that Kai-Tak re-strengthened into a tropical storm. Infrared data from Aqua's AIRS instrument revealed very cold cloud top temperatures in ...

NASA look at Tropical Storm Pakhar in infrared light

NASA's Aqua satellite passed over Tropical Storm Pakhar and gathered temperature data to determine the location of the most powerful storms within. Pakhar has triggered a number of warnings throughout the Philippines as the ...

Hurricane Igor, unchained, in NASA satellite images

While its intensity has dropped slightly, massive Hurricane Igor remains a powerful Category Three storm, with maximum sustained wind speeds of 105 knots (115 miles per hour) as it continues on a projected collision course ...

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