Cyclone Yasa strengthens rapidly in the South Pacific

December 16th, 2020 |


Himawari-8 Clean Window Infrared (10.41 µm) imagery, 0000 UTC 14 December to 0000 UTC 16 December 2020 (Click to animate)


Himawari-8 Clean Window Infrared (10.41 µm) imagery (courtesy the Japanese Meteorological Agency, JMA) from 14-15 December 2020 (click here for an animated gif) show the development of a potent storm with an obvious clear and large eye by 0000 UTC on 16 December. The Joint Typhoon Warning Center notes: ” TC 05P HAS RAPIDLY INTENSIFIED 50 KNOTS OVER THE PAST 24 HOURS, FROM 85 KNOTS AT 14/18Z TO 135 KNOTS AT 15/18Z.” Yasa further intensified to a Category 5 tropical cyclone at 0000 UTC on 16 December.


Visible imagery from GOES-17 and Himawari-8, (mp4 animation below, click here for an animated gif, and here for a full-sized mp4), during the day on 16 December show a well-developed storm with a clear eye.


Stereoscopic view of Cyclone Yasa, 1800 UTC 15 December to 0550 UTC 16 December 2020. Click to animate. GOES-17 Visible imagery on the left, Himawari imagery on the right

A storm-centered view of the storm is shown below. Click here for the full-sized mp4, and here for an animated gif.


Storm-centered stereoscopic view of Cyclone Yasa, 1800 UTC 15 December to 0550 UTC 16 December 2020. Click to animate. GOES-17 Visible imagery on the left, Himawari imagery on the right

The animation below is also storm-centered, but zoomed in on the eye of the storm.  Click here for a full-sized mp4, and here for an animated gif


Storm-centered stereoscopic view of the eye of Cyclone Yasa, 1800 UTC 15 December to 0550 UTC 16 December 2020. Click to animate. GOES-17 Visible imagery on the left, Himawari imagery on the right

Forecast models take this strong cyclone over Fiji later this week. Refer to the JTWC, to the RSMC in Fiji or the SSEC Tropical web site for more information.

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