Author Topic: Shockwave from volcano (Read 2905 times)

davidg_nz · « **on:** January 15, 2022, 04:53:36 AM »

Don't know if this really belongs here as its not exactly weather but...

A bit over two hours after the volcano erupted in Tonga, around 1986km from Port Charles according to Google Maps. I never thought something like this would be picked up by a personal weather station before.

Edit:
Zoomed view of just the pressure surge:

News is saying quite a few people even here in New Zealand over 2000km away heard the eruption (or its shockwave) as well.

WA7FWF · « **Reply #1 on:** January 15, 2022, 12:21:24 PM »

Not as dramatic but I also saw a blip in Northern Idaho.
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hmderek · « **Reply #2 on:** January 15, 2022, 01:37:10 PM »

Waiting to see if Europe gets anything.

Jim_S · « **Reply #3 on:** January 15, 2022, 01:59:38 PM »

Thanks for starting the thread!

Quote from: WA7FWF on January 15, 2022, 12:21:24 PM

Not as dramatic but I also saw a blip in Northern Idaho.

The same here in eastern Washington. Scanning WU you can see the blip and compare times with other stations. Very interesting.

chief-david · « **Reply #4 on:** January 15, 2022, 02:09:55 PM »

holy cow

8am central

hmderek · « **Reply #5 on:** January 15, 2022, 02:29:19 PM »

Netherlands!

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saratogaWX · « **Reply #6 on:** January 15, 2022, 02:31:04 PM »

My weather station (Saratoga, CA, USA) recorded the shock wave from the #Tongaeruption this morning. The eruption is 5,313 miles (8550 km) away.

chief-david · « **Reply #7 on:** January 15, 2022, 02:45:25 PM »

will have to talk about this in class Monday

NK7Z · « **Reply #8 on:** January 15, 2022, 02:53:20 PM »

I am fairly sure I also captured the event in Oregon... See attached.

NK7Z · « **Reply #9 on:** January 15, 2022, 02:53:58 PM »

Blast Event is NOT the large bump, it is the yellow circle centered on the time.

hmderek · « **Reply #10 on:** January 15, 2022, 02:58:17 PM »

I was hoping to be able to detect a small effect, but this looks a lot like the graphs I saw this morning from locations much much closer. 3 hPa difference between leading edge of the blast and the back!

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CW2274 · « **Reply #11 on:** January 15, 2022, 03:55:07 PM »

Can't figure out how to take a screen shot of my graph, but my pressure went form 30.177" at 1140Z to 30.221" at 1220Z then dropped back down. Very reminiscent of a pressure wave associated with a T-storm outflow.

mcrossley · « **Reply #12 on:** January 15, 2022, 04:26:14 PM »

Got this up in the Cheshire area of the UK at 19:00 UTC...

I make it distance of around 10,000 miles, or 16,000 km.

EDIT: Updated to include the secondary event just before 02:00 UTC on the 16/01/22

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worachj · « **Reply #13 on:** January 15, 2022, 05:59:21 PM »

Tonga volcanic eruption took almost 10 hours to affected pressure in Minnesota when it erupted around 10PM CT on 1/14 and reached MSP at 8AM on 1/15.

https://twitter.com/NWSTwinCities/status/1482438444013916162

Storm017 · « **Reply #14 on:** January 15, 2022, 07:04:52 PM »

I believe capture the pressure blip here on the east coast.

Storm017 · « **Reply #15 on:** January 15, 2022, 11:45:08 PM »

Video Link from Space Weather:

https://spaceweathergallery.com/indiv_upload.php?upload_id=181596

Brutha · « **Reply #16 on:** January 16, 2022, 03:56:41 AM »

Got this in the Western Isles of Scotland last night:

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Two waves in fact - the first the one coming directly, the second presumably the one going the long way round!

hmderek · « **Reply #17 on:** January 16, 2022, 04:15:21 AM »

Second shockwave just around 2.30 UTC+1 here.

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ocala · « **Reply #18 on:** January 16, 2022, 06:42:14 AM »

Slight bump here in central Florida.
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jimi · « **Reply #19 on:** January 16, 2022, 07:11:57 AM »

Quote from: hmderek on January 16, 2022, 04:15:21 AM

Second shockwave just around 2.30 UTC+1 here.

Looks like mine caught both as well

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ShuttleAU · « **Reply #20 on:** January 16, 2022, 07:11:58 AM »

Hi

Picked up in Sydney Australia. Two screenshots from Weather Underground from two weather stations about 25 km apart. The timing is the same and matches the local weather bureau data.

Dador · « **Reply #21 on:** January 16, 2022, 08:46:08 AM »

I watched it live on the computer. I was surprised where these quick changes in pressure came from, because it was freezing outside and almost no wind.

Davis VP2

GW1000

Storm017 · « **Reply #22 on:** January 16, 2022, 09:49:11 AM »

I believe capture the possibly a second pressure blip here on the east coast. Weather was clear and temp was -3.0 f

PaulMy · « **Reply #23 on:** January 16, 2022, 12:11:22 PM »

My WL.com data seems to show two separate times about 14 hours apart.

Enjoy,
Paul

hofpwx · « **Reply #24 on:** January 16, 2022, 12:29:12 PM »

Four stations in the Boulder, Colorado area. The NREL campus to the south, the NCAR Mesa and Foothill Labs, and my station, at about 6:30 MST.

News:

Author Topic: Shockwave from volcano (Read 2905 times)