NASA sees newborn eastern Atlantic tropical depression

Jul 24, 2013 by Rob Gutro
NASA sees newborn eastern Atlantic tropical depression
NOAA's GOES-13 satellite captured this view of Tropical Depression 4 in the far eastern Atlantic Ocean on July 24 at 11:45 UTC (7:45 a.m. EDT). Credit: NASA GOES Project

The fourth tropical depression of the Atlantic Ocean hurricane season was born west of the Cape Verde Islands in the Eastern Atlantic Ocean on July 24. NOAA's GOES-13 satellite provides continuous views of the Atlantic Ocean basin and captured an image of the newborn storm.

At 5 a.m. EDT on July 24, the National Hurricane Center announced the birth of Tropical Depression 4 or TD4. At that time TD4 had near 35 mph (55 kph). It was centered about 310 miles (500 km) west-southwest of the Cape Verde Islands, near 13.9 north and 28.1 west. TD4 was moving to the west-northwest at 20 mph (32 kph) and had a minimum central pressure of 1008 millibars.

NOAA's eastern Geostationary Operational Environmental Satellite known as GOES-13 captured a visible image of Tropical Depression 4 in the far eastern Atlantic Ocean on July 24 at 11:45 UTC (7:45 a.m. EDT). The image was created by the NASA GOES Project located at NASA's Goddard Space Flight Center in Greenbelt, Md.

The image showed that the storm had become more organized overnight, and strong convection (rising air that forms thunderstorms that make up the tropical depression) had increased in coverage and become more concentrated around the center.

The National Hurricane Center noted that TD4 may strengthen slightly and reach tropical storm status later in the day or on July 25 before running into drier air and cooler waters. Dry air absorbs the moisture needed to form thunderstorms, and need water temperatures of at least 80F/26.6C to maintain strength.

If TD4 strengthens into a tropical storm it would be renamed Dorian.

Explore further: Better forecasts for sea ice under climate change

add to favorites email to friend print save as pdf

Related Stories

Second Atlantic season tropical depression forms

Jun 17, 2013

Tropical Depression 2 formed in the western Caribbean Sea during the early afternoon hours (Eastern Daylight Time) on June 17. NOAA's GOES-13 satellite captured an image of the storm as it consolidated enough ...

Recommended for you

Better forecasts for sea ice under climate change

12 hours ago

University of Adelaide-led research will help pinpoint the impact of waves on sea ice, which is vulnerable to climate change, particularly in the Arctic where it is rapidly retreating.

"Ferrari of space' yields best map of ocean currents

20 hours ago

A satellite dubbed the "Ferrari of space" has yielded the most accurate model of ocean circulation yet, boosting understanding of the seas and a key impact of global warming, scientists said Tuesday.

Researcher studies deformation of tectonic plates

23 hours ago

Sean Bemis put his hands together side by side to demonstrate two plates of the earth's crust with a smooth boundary running between them. But that boundary is not always smooth and those plates do not always ...

User comments : 0

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.