NASA-NOAA satellite finds tropical Cyclone Maha weakening

NASA-NOAA satellite finds tropical Cyclone Maha weakening
On Nov. 6, 2019, the VIIRS instrument aboard NASA-NOAA’s Suomi NPP provided a visible image of Maha that showed it was less circular in shape as it approached the coast of northwestern India. Credit: NASA/NOAA/NRL

NASA-NOAA's Suomi NPP satellite passed over the Northern Indian Ocean and provided forecasters at the Joint Typhoon Warning Center with a view of Tropical Cyclone Maha's eroding structure that helped confirm it is weakening.

On Nov. 6, 2019, the Visible Infrared Imaging Radiometer Suite (VIIRS) instrument aboard Suomi NPP provided a visible image of Maha that showed it was less circular. Dry air was wrapping into the center of the storm inhibiting thunderstorm development. Maha appeared less circular in the imagery.

The shape of the storm is a clue to forecasters that a storm is either strengthening or weakening. If a storm takes on a more rounded shape it is getting more organized and strengthening. Conversely, if it becomes less rounded or elongated, it is a sign the is weakening as Maha is doing.

On Nov. 6 at 4 a.m. EDT (0900 UTC), Tropical Cyclone Maha's maximum sustained winds were near 50 knots (58 mph/93 kph). It was located near latitude 19.8 degrees north and longitude 66.9 degrees east, about 300 nautical miles south of Karachi, Pakistan.

Forecasters at the Joint Typhoon Warning Center expect Maha to continue moving east and weakening. The system is expected to skirt the Saurashtra coast and dissipate before making landfall north of Mumbai in northwestern India.

Hurricanes are the most powerful weather event on Earth. NASA's expertise in space and contributes to essential services provided to the American people by other , such as hurricane weather forecasting.


Explore further

NASA sees development of Tropical Storm Maha at southwestern India Coast

More information: For updated forecasts from the India Meteorological Department, Visit: www.rsmcnewdelhi.imd.gov.in/
Citation: NASA-NOAA satellite finds tropical Cyclone Maha weakening (2019, November 6) retrieved 13 December 2019 from https://phys.org/news/2019-11-nasa-noaa-satellite-tropical-cyclone-maha.html
This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.
0 shares

Feedback to editors

User comments