Aqua Satellite finds Tropical Cyclone Gelena's strongest side

NASA's Aqua Satellite finds Tropical Cyclone Gelena's strongest side
At 5:05 a.m. EST (1005 UTC) on Feb. 8, 2019 the MODIS instrument that flies aboard NASA's Aqua satellite gathered infrared data on Tropical Cyclone Gelena. Strongest thunderstorms were in the northwestern quadrant of the storm, where cloud top temperatures were as cold as minus 80 degrees Fahrenheit (minus 62 Celsius) and appear in yellow in this false colored image. Credit: NASA/NRL

NASA's Aqua satellite passed over the Southern Indian Ocean and captured an infrared image of Tropical Cyclone Gelena that revealed strongest storms were northwest of the eye.

On Feb. 8, a tropical cyclone warning class 2 is in force at Mauritius and Rodrigues.

At 5:05 a.m. EST (1005 UTC) on Feb. 8 the MODIS instrument that flies aboard NASA's Aqua satellite gathered on Tropical Cyclone Gelena. Infrared data provides temperature information. MODIS found coldest cloud top temperatures as cold as minus 80 degrees Fahrenheit (minus 62 Celsius) in storms in the northwestern quadrant, outside of the eye. NASA research has shown that cloud tops with temperatures that cold were high in the troposphere and have the ability to generate heavy rain.

At 10 a.m. EDT (1500 UTC), the center of Tropical Cyclone Gelena was located near latitude 15.7 degrees south and longitude 55.3 degrees east. That's about 288 nautical miles north-northwest of Port Louis, Mauritius. Maximum sustained winds were near 105 knots (121 mph/194.5 kph) and strengthening.

The Joint Typhoon Warning Center noted that Gelena will strengthen to 130 knots (149.6 /241 kph) within 24 hours. Although a weakening trend will then begin, Gelena is forecast to have winds of about 120 knots (138 mph/222 kph) upon to Rodrigues on Feb. 9.


Explore further

NASA satellite shows Tropical Cyclone Gelena near Madagascar

Citation: Aqua Satellite finds Tropical Cyclone Gelena's strongest side (2019, February 8) retrieved 11 December 2019 from https://phys.org/news/2019-02-aqua-satellite-tropical-cyclone-gelena.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.
12 shares

Feedback to editors

User comments