Tropical depression 2 on shaky ground, 3 other areas to watch on weekend

Aug 14, 2009
The Atmospheric Infrared Sounder instrument on NASA's Aqua satellite captured an image of Tropical Depression 2's cloud temperatures on August 13 at 2:17 p.m. EDT. Purple indicates coldest and highest thunderstorms, blue is the second coldest. AIRS noticed there are no very powerful thunderstorms associated with this storm. Credit: NASA JPL, Ed Olsen

The Atlantic Ocean's second Tropical Depression has been on shaky ground since it formed early in the week of August 11. It meandered westward from the African coast and maintained its tropical depression status until weakening to a remnant low. Now it has the potential to come back. In addition to Tropical Depression 2, there are three other areas forecasters are watching in the Atlantic Basin. Residents of Florida should particularly be watchful as there's a potential for tropical development on both the east and west coasts this weekend.

At 5 p.m. EDT on Aug. 13, Tropical Depression 2 (TD2) in the Atlantic Ocean was downgraded to a remnant low area. If you're a tropical cyclone, you can't get any lower than that, aside from total dissipation. At that time, TD2's remnants were about 930 miles west of the southernmost Cape Verde Islands off the African coast.

The Atmospheric Infrared Sounder (AIRS) instrument on NASA's Aqua satellite measures cloud top and pressure, and it captured a look at the remnants of 2, and it was still maintaining somewhat of a circular shape. In infrared imagery, NASA's false-colored purple clouds are as cold as or colder than 220 Kelvin or minus 63 degrees Fahrenheit (F). The blue colored clouds are about 240 , or minus 27F. The colder the clouds are, the higher they are, and the more powerful the thunderstorms are that make up the cyclone.

In addition to TD2's struggle for life, there other three areas forecasters will be watching over the weekend and residents of Florida should keep an eye on both coasts for tropical development of two of the three systems.

Farthest from the U.S. is the area of showers and thunderstorms with the greatest potential for developing into a tropical cyclone over the weekend. On Aug. 14, that area of disturbed weather was located 250 miles west-southwest of the southern Cape Verde Islands. It has a "greater than 50 percent chance of developing."

Much closer to the U.S. are two areas with less than a 30 percent chance of development. One area of showers and thunderstorms are associated with a tropical wave that stretches from the Bahamas to Hispaniola. The other area is in the Gulf of Mexico, associated with a weak elongated area of low pressure. The area is centered off the coast from Tampa, Florida. Residents of Florida should be on watch this weekend, as tropical development is possible around them on both the east and west coasts. For the latest updates, visit: www.nhc.noaa.gov.

Source: NASA/Goddard Space Flight Center

Explore further: NASA satellites measure increase of Sun's energy absorbed in the Arctic

add to favorites email to friend print save as pdf

Related Stories

Still a low chance of development for two lows

Jul 22, 2009

The two areas of thunderstorms in the Caribbean from yesterday, July 21, are on the move. One area is now moving into out of the Caribbean and into the eastern Atlantic Ocean while the other is now moving ...

Tropical Depression Erin Soaking East Texas

Aug 16, 2007

Tropical Storm Erin quickly weakened to a tropical depression when she made landfall on the Texas coast near Lamar during the early morning hours of Thursday, August 16, 2007.

Recommended for you

NOAA/NASA satellite sees holiday lights brighten cities

13 hours ago

Even from space, holidays shine bright. With a new look at daily data from the NOAA/NASA Suomi National Polar-orbiting Partnership (Suomi NPP) satellite, a NASA scientist and colleagues have identified how ...

User comments : 1

Adjust slider to filter visible comments by rank

Display comments: newest first

Doug_Huffman
not rated yet Aug 14, 2009
Keep looking for evidence of AGW. Bush is OOO. sooner or later the evidence will point to OBONGO.

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.