Satellite catches the eye of rapidly intensifying Tropical Cyclone Cilida

December 20, 2018, NASA's Goddard Space Flight Center
On Dec. 20, the VIIRS instrument aboard NASA-NOAA's Suomi NPP satellite captured a visible image of Tropical Cyclone Cilida in the Southwestern Indian Ocean, northeast of Madagascar (left in the image). Credit: NASA Worldview, Earth Observing System Data and Information System (EOSDIS)

Tropical Cyclone Cilida appeared much more organized on satellite imagery as it moved across the southwestern Indian Ocean and continued to rapidly intensify. NASA-NOAA's Suomi NPP satellite captured a visible image of Cilida that showed a cloud-covered eye.

On Dec. 20, 2018 the Visible Infrared Imaging Radiometer Suite (VIIRS) instrument aboard NASA-NOAA's Suomi NPP showed a powerful thunderstorms circling Cilida's 18 nautical mile wide eye and extending in bands northwest and southeast of the center. The VIIRS imagery revealed a cloud-covered eye as the storm reached hurricane-strength.

The Joint Typhoon Warning Center noted that Cilida had intensified rapidly, by 55 knots (63 mph/102 kph) in 24 hours. Rapid intensification is expected to continue in the near term as warm sea surface temperatures and light outside winds remain. However, Cilida is expected to run into increasing (which can weaken a storm) ahead of a developing mid-latitude trough or elongated area of low pressure.

On Dec. 20 at 10 a.m. EDT (1500 UTC) Cilida's maximum sustained winds had reached 90 knots (103.6 mph/166.7 kph). Cilida is currently a Category 2 hurricane on the Saffir-Simpson Hurricane Wind Scale. It was located near 13.4 degrees south latitude and 58.9 degrees east longitude, approximately 427 nautical miles north-northeast of Port Louis, Mauritius. Cilida was moving southwestward and was undergoing rapid intensification.

Cilida is expected to pass to the east of Mauritius over Dec. 22 and 23 as it curves toward the southeast. In three to five days, Cilida is expected to undergo extratropical transition as it merges with the trough of low pressure.

Explore further: NASA analyzes newly formed Tropical Cyclone Cilidaa

Related Stories

NASA analyzes newly formed Tropical Cyclone Cilidaa

December 19, 2018

An infrared look by NASA's Aqua satellite revealed where the strongest storms were located within recently formed Tropical Cyclone Cilida. Cilida formed in the Southern Indian Ocean on Dec. 18.

NASA finds wind shear slamming Tropical Cyclone Keni

April 11, 2018

NASA satellite imagery showed that Tropical Cyclone Keni was being battered by vertical wind shear. NASA-NOAA's Suomi NPP satellite revealed that wind shear was pushing the clouds and storms associated with Keni to the southeast ...

NASA eyes powerful Tropical Cyclone Marcus

March 22, 2018

While a Category 4 hurricane on the Saffir-Simpson hurricane wind scale, NASA-NOAA's Suomi NPP satellite passed over Tropical Cyclone Marcus in the Southern Indian Ocean.

Recommended for you

What happened before the Big Bang?

March 26, 2019

A team of scientists has proposed a powerful new test for inflation, the theory that the universe dramatically expanded in size in a fleeting fraction of a second right after the Big Bang. Their goal is to give insight into ...

Probiotic bacteria evolve inside mice's GI tracts

March 26, 2019

Probiotics—which are living bacteria taken to promote digestive health—can evolve once inside the body and have the potential to become less effective and sometimes even harmful, according to a new study from Washington ...

Cellular microRNA detection with miRacles

March 26, 2019

MicroRNAs (miRNAs) are short noncoding regulatory RNAs that can repress gene expression post-transcriptionally and are therefore increasingly used as biomarkers of disease. Detecting miRNAs can be arduous and expensive as ...

0 comments

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.