Welcome to the Cumulus Support forum.

Latest Cumulus MX V3 release 3.28.6 (build 3283) - 21 March 2024

Cumulus MX V4 beta test release 4.0.0 (build 4018) - 28 March 2024

Legacy Cumulus 1 release v1.9.4 (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

Talk about the weather
User avatar
mcrossley
Posts: 12695
Joined: Thu 07 Jan 2010 9:44 pm
Weather Station: Davis VP2/WLL
Operating System: Bullseye Lite rPi
Location: Wilmslow, Cheshire, UK
Contact:

Tonga Eruption

Post by mcrossley »

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.
.
tonga_two_shock_waves.JPG
You do not have the required permissions to view the files attached to this post.
Mapantz
Posts: 1778
Joined: Sat 17 Dec 2011 11:55 am
Weather Station: Davis Vantage Pro2
Operating System: Windows 11 x64
Location: Dorset - UK
Contact:

Re: Tonga Eruption

Post by Mapantz »

Yep - same.

That's insane! I wonder what the spike would have been like had we had our Davis stations during the Krakatoa explosion?
Image
User avatar
Super-T
Posts: 890
Joined: Tue 09 Sep 2008 3:37 am
Weather Station: wh-1081
Operating System: Weather Laptop - Windows 10 Pro
Location: Auckland, New Zealand
Contact:

Re: Tonga Eruption

Post by Super-T »

In Auckland, NZ
2022-01-16_104431.jpg
You do not have the required permissions to view the files attached to this post.
User avatar
ConligWX
Posts: 1573
Joined: Mon 19 May 2014 10:45 pm
Weather Station: Davis vPro2+ w/DFARS + AirLink
Operating System: Ubuntu 22.04 LTS
Location: Bangor, NI
Contact:

Re: Tonga Eruption

Post by ConligWX »

Wow, same here:

Screenshot 2022-01-15 225656.png
You do not have the required permissions to view the files attached to this post.
Regards Simon

https://www.conligwx.org - @conligwx
Davis Vantage Pro2 Plus with Daytime FARS • WeatherLink Live • Davis AirLink • PurpleAir •

Image
User avatar
saratogaWX
Posts: 1170
Joined: Wed 06 May 2009 5:02 am
Weather Station: Davis Vantage Pro Plus
Operating System: Windows 10 Professional
Location: Saratoga, CA, USA
Contact:

Re: Tonga Eruption

Post by saratogaWX »

Also in Saratoga, CA, USA at 4am
2022-01-15-Tonga.png
You do not have the required permissions to view the files attached to this post.
RayProudfoot
Posts: 3372
Joined: Wed 06 May 2009 6:29 pm
Weather Station: Davis VP2 with Daytime FARS
Operating System: Windows XP SP3
Location: Cheadle Hulme, Cheshire, England
Contact:

Re: Tonga Eruption

Post by RayProudfoot »

Ditto here.
Spike.JPG
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.
Cheers,
Ray, Cheshire.

Image
RayProudfoot
Posts: 3372
Joined: Wed 06 May 2009 6:29 pm
Weather Station: Davis VP2 with Daytime FARS
Operating System: Windows XP SP3
Location: Cheadle Hulme, Cheshire, England
Contact:

Re: Tonga Eruption

Post by RayProudfoot »

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. :D
Cheers,
Ray, Cheshire.

Image
User avatar
BeaumarisWX
Posts: 359
Joined: Mon 09 Apr 2012 2:38 pm
Weather Station: Davis VP2 Plus - 24hr FARS
Operating System: Windows 10 Pro Hades Canyon
Location: Beaumaris, Tasmania, AU
Contact:

Re: Tonga Eruption

Post by BeaumarisWX »

Same here in Tasmania, Distance: 4110713.7 m | 4110.71 km | 2554.28 mi | 13486594 ft | 4495531.2 yd | 2219.61 nm
Image

Kind Regards,
Tony Beaumaris, Tasmania (AUS)

CMX Mobile : https://beaumaris-weather.com/BWX/
CMX Default: https://beaumaris-weather.com/cumulusmx_default/
Colour Dashboard : https://beaumaris-weather.com/dashborad_color.php
Click below for Saratoga Template :
Image
User avatar
HansR
Posts: 5871
Joined: Sat 20 Oct 2012 6:53 am
Weather Station: GW1100 (WS80/WH40)
Operating System: Raspberry OS/Bullseye
Location: Wagenborgen (NL)
Contact:

Re: Tonga Eruption

Post by HansR »

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.
    Schermafbeelding 2022-01-16 103039.jpg
      You do not have the required permissions to view the files attached to this post.
      Last edited by HansR on Sun 16 Jan 2022 9:34 am, edited 1 time in total.
      Hans

      https://meteo-wagenborgen.nl
      CMX build 4017+ ● RPi 3B+ ● Raspbian Linux 6.1.21-v7+ armv7l ● dotnet 8.0.3
      User avatar
      meteo19
      Posts: 89
      Joined: Tue 03 May 2016 8:13 pm
      Weather Station: Davis VP2+/DP1500 SmartHub
      Operating System: Microsoft Windows 7 Pro
      Location: Ségur-Le-Château, France
      Contact:

      Re: Tonga Eruption

      Post by meteo19 »

      Same here in France.
      Volcan.PNG
      You do not have the required permissions to view the files attached to this post.
      RayProudfoot
      Posts: 3372
      Joined: Wed 06 May 2009 6:29 pm
      Weather Station: Davis VP2 with Daytime FARS
      Operating System: Windows XP SP3
      Location: Cheadle Hulme, Cheshire, England
      Contact:

      Re: Tonga Eruption

      Post by RayProudfoot »

      Those in the northern hemisphere are in winter with all doors and windows closed. So how does that pressure wave get into your house? :?:
      Cheers,
      Ray, Cheshire.

      Image
      User avatar
      HansR
      Posts: 5871
      Joined: Sat 20 Oct 2012 6:53 am
      Weather Station: GW1100 (WS80/WH40)
      Operating System: Raspberry OS/Bullseye
      Location: Wagenborgen (NL)
      Contact:

      Re: Tonga Eruption

      Post by HansR »

      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? :?:
      Air is very thin :lol:

      [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 4017+ ● RPi 3B+ ● Raspbian Linux 6.1.21-v7+ armv7l ● dotnet 8.0.3
      freddie
      Posts: 2434
      Joined: Wed 08 Jun 2011 11:19 am
      Weather Station: Davis Vantage Pro 2 + Ecowitt
      Operating System: GNU/Linux Ubuntu 22.04 LXC
      Location: Alcaston, Shropshire, UK
      Contact:

      Re: Tonga Eruption

      Post by freddie »

      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? :?:
      Pressure will equalise due to gaps around doors and windows. This happens all the time, otherwise you would have difficulty opening and closing.
      Freddie
      Image
      freddie
      Posts: 2434
      Joined: Wed 08 Jun 2011 11:19 am
      Weather Station: Davis Vantage Pro 2 + Ecowitt
      Operating System: GNU/Linux Ubuntu 22.04 LXC
      Location: Alcaston, Shropshire, UK
      Contact:

      Re: Tonga Eruption

      Post by freddie »

      Same in this part of the UK, with another anomaly just before 0200 UTC.
      pressure-20220115.png
      You do not have the required permissions to view the files attached to this post.
      Freddie
      Image
      RayProudfoot
      Posts: 3372
      Joined: Wed 06 May 2009 6:29 pm
      Weather Station: Davis VP2 with Daytime FARS
      Operating System: Windows XP SP3
      Location: Cheadle Hulme, Cheshire, England
      Contact:

      Re: Tonga Eruption

      Post by RayProudfoot »

      Hans and Freddie, not forgetting air bricks in the construction allowing the house to “breath”. :D

      Same anomaly here at the same time. What caused that? Secondary shockwave but unlike the first one pressure dropped before rising.
      Cheers,
      Ray, Cheshire.

      Image
      Post Reply