You'll have to pardon the continued featuring of wave passages from the Hunga Tonga eruption. This featured lapse shows the second passage of the eastbound wave that happened Sunday evening. While the wave is plainly visible, it is not as strong as the first passage. There are interesting quirks with how qualitatively strong the wave appears over various parts of the country. The reason for these differences is not readily known by the author at this time! We'll have at least one more lapse to share as the second passage of the westbound wave happened Monday afternoon. It is a testament to the power of a volcanic eruption that these waves are able to make multiple trips around the globe!

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Tags:   tonga   volcano   pressure