Convectively-generated gravity waves off the coast of Western Australia

October 22nd, 2019 |

Himawari-8 Upper-level Water Vapor (6.2 µm) images [click to play animation | MP4]

Himawari-8 Upper-level Water Vapor (6.2 µm) images [click to play animation | MP4]

JMA Himawari-8 Upper-level Water Vapor (6.2 µm) images (above) revealed 2 distinct pulses of long-lived gravity waves that propagated northward/northwestward/westward from the coast of Western Australia during the 20-22 October 2019 period. These waves appear to have been generated by thunderstorms near and along the coast — and traveled as far northward as Christmas Island (station identifier YPXM) and the Lesser Sunda Islands.

The corresponding Himawari-8 Mid-level Water Vapor (6.9 µm) images are shown below.

Himawari-8 Mid-level Water Vapor (6.9 µm) images [click to play animation | MP4]

Himawari-8 Mid-level Water Vapor (6.9 µm) images [click to play animation | MP4]

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