NASA satellite still sees heavy rainfall in Tropical Storm Neki

Oct 24, 2009
The Atmospheric Infrared Sounder instrument on NASA's Aqua satellite captured an infrared image of Hurricane Neki on October 22 at 2:59 a.m. local time. Infrared imagery revealed the deep convection in Neki's center and in the northeast quadrant of the storm. The coldest cloud tops are cold as or colder than 220K (Kelvin) or minus 63F. The blue areas are around 240K, or minus 27F. Credit: NASA/JPL, Ed Olsen

Tropical Storm Neki continues moving north and over the weekend it will be in open waters in the Central Atlantic. NASA's Tropical Rainfall Measuring Mission (TRMM) satellite passed over Neki early on October 23 and noticed some intense areas of rainfall, even though it is not a hurricane anymore.

On Friday afternoon, October 23, a Tropical Storm warning was still effect for The Papahanaumokuakea National Monument from Nihoa Island to French Frigate Shoals to Maro Reef.

On October 23 at 11 a.m. EDT (5 a.m. HST), Neki had near 70 mph. It was moving north-northeast near 7 mph, and had a minimum central pressure of 995 millibars. Its center was about 90 miles south-southeast of French Frigate Shoals and 400 miles west of Lihue, Hawaii near 22.8 North and 165.6 West.

This video is not supported by your browser at this time.

The French Frigate Shoals is the largest atoll in the northwestern . It got its mane name from the French explorer Jean-François de La Pérouse, who almost lost two frigates when attempting to navigate the shoals.

The Tropical Rainfall Measuring Mission (TRMM) , managed by NASA and the Japanese Space Agency (JAXA) passed over Neki on October 23 at 0124 UTC (9:24 a.m. EDT Oct. 22) and captured a look at Neki's rainfall. TRMM found that areas of heavy rainfall continued to fall in the northeast and the northern quadrants of the storm. Rainfall rates were very intense, around 2 inches (50 millimeters) per hour in those areas of Neki. Because rainfall is so intense, the Central Pacific Center is calling for rainfall amounts between 8 and 12 inches in Neki's path over the weekend.

The Tropical Rainfall Measuring Mission analysis of rainfall within Neki on Oct. 23 at 0124 UTC showed areas of heavy rainfall, about 2 inches per hour (red). The yellow and green areas indicate moderate rainfall between .78 to 1.57 inches per hour. Neki was moving into the French Frigate Shoals (west-northwest of the Hawaiian Islands) at the time of this image. Credit: NASA/SSAI, Hal Pierce

Rain rates are created from different instruments aboard TRMM. The rain rates in the center of TRMM images are derived from the TRMM Precipitation Radar, the only spaceborne radar of its kind, while those in the outer portion are from the TRMM Microwave Imager. The rain rates are then overlaid on infrared data from the TRMM Visible Infrared Scanner to create the entire image. The images are created at NASA's Goddard Space Flight Center, in Greenbelt, Md.

Hal Pierce of NASA's TRMM Team at NASA Goddard also created an animation of laid over cloud cover (see above).

High seas and large surf will continue to impact portions of the Papahanaumokuakea National Monument Friday and Friday night.

Neki and is expected to continue weakening while moving toward the north-northeast over the weekend.

Source: JPL/NASA (news : web)

Explore further: Critters found in Antarctic ice shows how tenacious life is

add to favorites email to friend print save as pdf

Related Stories

NASA's TRMM satellite sees heavy rainfall in Choi-Wan

Sep 17, 2009

NASA and the Japanese Space Agency's Tropical Rainfall Measuring Mission (TRMM) satellite flew over the center of Super Typhoon Choi-Wan at 2:34 EDT on September 17, 2009 and captured heavy rainfall around ...

NASA sees Carlos power back up to hurricane status in 3-D

Jul 14, 2009

Carlos became a hurricane for about 24 hours over the previous weekend, then powered down to a tropical storm and now atmospheric conditions have enabled him to power back into a hurricane in the Eastern Pacific ...

Recommended for you

Antarctic ice shelves rapidly thinning

16 hours ago

A new study led by Scripps Institution of Oceanography at UC San Diego researchers has revealed that the thickness of Antarctica's floating ice shelves has recently decreased by as much as 18 percent in certain ...

More big storms increase tropical rainfall totals

Mar 25, 2015

Increasing rainfall in certain parts of the tropics, colloquially described as the wet get wetter and warm get wetter, has long been a projection of climate change. Now observations have shown that an increase ...

User comments : 1

Adjust slider to filter visible comments by rank

Display comments: newest first

not rated yet Oct 26, 2009
It should state Central PACIFIC, not Atlantic!!!

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.