The Washington Post

Image of day: Sub-tropical storm Arani


3-D view of Sub-tropical Storm Arani’s clouds from TRMM satellite data. The red shades indicate the heaviest rain in the eastern half of the storm. The precipitation radar showed that some cloud top heights exceeded 14 km, or 40,000 feet. (Credit: NASA/SSAI, Hal Pierce)

Today, Arani merged with another weather system and is losing its tropical characteristics. Nevertheless, as recently as yesterday, it exhibited the deep convection characteristic of tropical systems. The NASA image above illustrates cloud tops in the eastern half of the storm extending to over 40,000 feet (14 km) . The Tropical Rainfall Measuring Mission (TRMM) satellite captured the image and also sensed rainfall rates as high as two inches per hour associated with the storm.

Jason is the Washington Post’s weather editor and Capital Weather Gang's chief meteorologist. He earned a master's degree in atmospheric science, and spent 10 years as a climate change science analyst for the U.S. government. He holds the Digital Seal of Approval from the National Weather Association.

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