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Latest Cumulus MX V4 release 4.0.1 (build 4023) - 16 May 2024
Latest Cumulus MX V3 release 3.28.6 (build 3283) - 21 March 2024
Legacy Cumulus 1 release 1.9.4 (build 1099) - 28 November 2014
(a patch is available for 1.9.4 build 1099 that extends the date range of drop-down menus to 2030)
Download the Software (Cumulus MX / Cumulus 1 and other related items) from the Wiki
Tonga Eruption
- mcrossley
- Posts: 12953
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Tonga Eruption
EDIT: Updated with a new graph to show the secondary anomaly just before 02:00 UTC on 16/01/22.
The shock wave from the volcanic explosion seems to have passed through the UK at 19:00 UTC, I'm really surprised it was still that strong...
I make it distance of around 10,000 miles, or 16,000 km.
.
The shock wave from the volcanic explosion seems to have passed through the UK at 19:00 UTC, I'm really surprised it was still that strong...
I make it distance of around 10,000 miles, or 16,000 km.
.
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-
- Posts: 1832
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- Weather Station: Davis Vantage Pro2
- Operating System: Windows 11 x64
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Re: Tonga Eruption
Yep - same.
That's insane! I wonder what the spike would have been like had we had our Davis stations during the Krakatoa explosion?
That's insane! I wonder what the spike would have been like had we had our Davis stations during the Krakatoa explosion?
- Super-T
- Posts: 891
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Re: Tonga Eruption
In Auckland, NZ
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- ConligWX
- Posts: 1673
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Re: Tonga Eruption
Wow, same here:
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Regards Simon
https://www.conligwx.org - @conligwx
Davis Vantage Pro2 Plus with Daytime FARS • WeatherLink Live • Davis AirLink • PurpleAir • CumulusMX v4.0.0
https://www.conligwx.org - @conligwx
Davis Vantage Pro2 Plus with Daytime FARS • WeatherLink Live • Davis AirLink • PurpleAir • CumulusMX v4.0.0
- saratogaWX
- Posts: 1211
- Joined: Wed 06 May 2009 5:02 am
- Weather Station: Davis Vantage Pro Plus
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- Location: Saratoga, CA, USA
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Re: Tonga Eruption
Also in Saratoga, CA, USA at 4am
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-
- Posts: 3403
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Re: Tonga Eruption
Ditto here.
Terry, I'm a bit confused by the time it reached New Zealand. The eruption was at 04:10GMT on 15 January. Surely it would have arrived in NZ in a couple of hours.You do not have the required permissions to view the files attached to this post.
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Re: Tonga Eruption
Terry, given the eruption occurred at 04:10 GMT that would be around 16:10 NZ time. So it only took a couple of hours to reach you. Mystery solved.
- BeaumarisWX
- Posts: 380
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Re: Tonga Eruption
Same here in Tasmania, Distance: 4110713.7 m | 4110.71 km | 2554.28 mi | 13486594 ft | 4495531.2 yd | 2219.61 nm
Kind Regards,
Kind Regards,
Tony Beaumaris, Tasmania (AUS)
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- HansR
- Posts: 6058
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Re: Tonga Eruption
Wagenborgen NL: At 15/1 20h10 shockwave peak of the #Tonga volcano and at 20h30 the valley (1025.9 vs 1023.4) . Starting 22h45 also the finedust starts rising to unusual levels (PM2.5 at 30; PM10 at 70 and still rising at 5h30 on 16/1). Not sure that is related though. I will post my charts later when at the computer.
Pretty sensational event!
[EDIT] So here is my chart. Notice the second shock wave (interference wave?) at around 03h00. And my remark about the finedust may best be ignored. Though indeed high particle concentrations, they seem only present in NW-Europe.
Pretty sensational event!
[EDIT] So here is my chart. Notice the second shock wave (interference wave?) at around 03h00. And my remark about the finedust may best be ignored. Though indeed high particle concentrations, they seem only present in NW-Europe.
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Last edited by HansR on Sun 16 Jan 2022 9:34 am, edited 1 time in total.
Hans
https://meteo-wagenborgen.nl
CMX build 4023+ ● RPi 3B+ ● Raspbian Linux 6.1.21-v7+ armv7l ● dotnet 8.0.3
https://meteo-wagenborgen.nl
CMX build 4023+ ● RPi 3B+ ● Raspbian Linux 6.1.21-v7+ armv7l ● dotnet 8.0.3
- meteo19
- Posts: 89
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Re: Tonga Eruption
Same here in France.
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-
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Re: Tonga Eruption
Those in the northern hemisphere are in winter with all doors and windows closed. So how does that pressure wave get into your house?
- HansR
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Re: Tonga Eruption
Air is very thinRayProudfoot wrote: ↑Sun 16 Jan 2022 9:03 am Those in the northern hemisphere are in winter with all doors and windows closed. So how does that pressure wave get into your house?
[Edit] Btw: that's why the pressure sensor is in the console and not in your outside station!
Last edited by HansR on Sun 16 Jan 2022 9:29 am, edited 2 times in total.
Hans
https://meteo-wagenborgen.nl
CMX build 4023+ ● RPi 3B+ ● Raspbian Linux 6.1.21-v7+ armv7l ● dotnet 8.0.3
https://meteo-wagenborgen.nl
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-
- Posts: 2520
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Re: Tonga Eruption
Pressure will equalise due to gaps around doors and windows. This happens all the time, otherwise you would have difficulty opening and closing.RayProudfoot wrote: ↑Sun 16 Jan 2022 9:03 am Those in the northern hemisphere are in winter with all doors and windows closed. So how does that pressure wave get into your house?
-
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Re: Tonga Eruption
Same in this part of the UK, with another anomaly just before 0200 UTC.
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Re: Tonga Eruption
Hans and Freddie, not forgetting air bricks in the construction allowing the house to “breath”.
Same anomaly here at the same time. What caused that? Secondary shockwave but unlike the first one pressure dropped before rising.
Same anomaly here at the same time. What caused that? Secondary shockwave but unlike the first one pressure dropped before rising.