NASA satellite sees System 91S undeveloped in Mozambique Channel

Jan 30, 2014
TRMM passed over System 91S on Jan. 30 at 0820 UTC/3:20 a.m. EST and captured rainfall data on the low. The heaviest rainfall rates were occurring over the waters of the Mozambique Channel (yellow/orange). Credit: NASA/NRL/ESA

The Tropical Rainfall Measuring Mission or TRMM satellite that observed the tropical low pressure area designated as System 91S earlier this week captured another look at a much weaker storm on January 30. Wind shear has now increased in the region, and the development chances for the tropical low pressure area have dropped.

At 800 UTC/3 a.m. EST, the center of System 91S was located near 18.2 south latitude and 39.1 east longitude, about 370 nautical miles northeast of Maputo, Mozambique (which is in the southernmost part of the country).

TRMM passed over System 91S on January 30 at 0820 UTC/3:20 a.m. EST and captured on the low. The heaviest rainfall rates were occurring over the waters of the Mozambique Channel, where rain was falling in one area at about 1 inch/25 mm per hour. Other rainfall from the system was light. The U.S. Naval Research Laboratory overlaid TRMM rainfall imagery on top of visible imagery from Europe's METEO-7 satellite to provide a full picture of the low. The center appeared to be in the western Channel, while the heaviest rainfall was occurring in the eastern Channel.

Animated multispectral satellite imagery shows that the low-level center is elongating as a result of . A ridge of high pressure located southwest of System 91S is creating moderate wind shear (20 to 25 knots/37.0 to 46.3 kph/23.0 to 28.7 mph) hampering development.

Forecasters at the Joint Typhoon Warning Center have dropped the chances for System 91S to a low chance for potential for tropical development in the next day or two.

Explore further: TRMM satellite peers at rainfall in developing low near Mozambique

add to favorites email to friend print save as pdf

Related Stories

NASA sees Tropical Cyclone Colin coming 'unwound'

Jan 14, 2014

Tropical Cyclone Colin is not as tightly wrapped as it was a day ago. Satellite imagery from NASA's Aqua and TRMM satellites show Colin is not as organized as it was, and most of the strongest precipitation ...

NASA sees rainfall quickly fade in dying Depression 33W

Dec 04, 2013

NASA's TRMM satellite noticed that rainfall became scarce in the Northwestern Pacific Ocean's thirty-third tropical depression in its second day of life. Tropical Depression 33W or TD 33W had weakened and ...

NASA adds up Tropical Cyclone Colin's rainfall rates

Jan 13, 2014

Tropical Cyclone Colin continued moving through the Southern Indian Ocean on January 13 while NASA's TRMM satellite passed overhead and calculated the rates in which rain was falling throughout the storm.

Recommended for you

Sculpting tropical peaks

4 hours ago

Tropical mountain ranges erode quickly, as heavy year-round rains feed raging rivers and trigger huge, fast-moving landslides. Rapid erosion produces rugged terrain, with steep rivers running through deep ...

Volcano expert comments on Japan eruption

4 hours ago

Loÿc Vanderkluysen, PhD, who recently joined Drexel as an assistant professor in Department of Biodiversity, Earth and Environmental Science in the College of Arts and Sciences, returned Friday from fieldwork ...

NASA's HS3 looks Hurricane Edouard in the eye

17 hours ago

NASA and NOAA scientists participating in NASA's Hurricane and Severe Storms Sentinel (HS3) mission used their expert skills, combined with a bit of serendipity on Sept. 17, 2014, to guide the remotely piloted ...

User comments : 0