Argyllcraig

Its pretty much when the system takes on the classic cyclonic low look with a hook back in the centre with the cloud wrapped around it... at the moment on the satellite imagery the system looks like a massive lump of cloud rather than anything defined so we should rapidly see it take shape.

Station 62095 which is the most westerly of the Irish Buoy's has been sat in a small ridge of increasing pressure for about for about the last 10 hours.. its just at its latest update shown a drop off and the winds have now swung more to a ssw direction which i guess may be the first approaches of our storm.

Dreich today here in Glasgow... light drizzle early on with steady rain now and a cool breeze. Interesting this time tomorra perhaps

Agreed with you, that storm snapped trees literally in half even in the middle of Glasgow and it went by as something normal.

Seems like there will be a lot of rain wrapped up in this system for sunday night right through until Tuesday afternoon particularly for western Scotland... I think a lot of the usual vulnerable mountain routes could see landslides with the already saturated ground not to mention flooding almost anywhere. Glad i no longer live down the clyde... areas such as Helensburgh will be particularly vulnerable to coastal flooding as it only takes a normal tide and winds of about 30mph to breach the towns sea defences. I guess many areas up the west coast will have this problem over the next 2 days with sustained strong winds until tuesday.

Buoy 44140 to the south of Newfoundland has shown some storng winds since i last looked 3 hours ago.. pressure still dropping with sustained winds of currently of 62.2kts with it being unable to record gusts at the mo.. swell has increased from 9feet to 24.3feet.. At a guess this buoy is just to the north of the storm at 42N

Don't seem to be able to link to it but the last buoy as far as i can tell between here and Canada is showing increasing wind speeds and gusts station 44140 on http://www.newtonand.../weather/buoys/ Shows a current gust of 58.3kts with pressure continuing to fall.

Quite a harmonic tremor in Katla overnight http://hraun.vedur.is/ja/Katla/oroi_esk.html Seems to be the current run of things... a lot of waiting and watching between each spike

Yeah, the lightening over glasgow was a nice surprise this morning, love it when its dark and it lights the room up! Its for sure going to be an interesting 48-72 hours coming up although to be honest from my experience up on Lewis and the far north of scotland we are well used to atlantic beasts battering us without barely a mention on the news.. You know its bad however when calmac decide not to sail the Ullapool-Stornoway run Be interesting to see what we get through the central belt.

Hi John, that part of northern Italy is quite well know for its geothermal energy and as such there are a couple of generating plants up there. I think that because the quakes are so coordinate specific that it might be that one of said plants has fired up its generating process and as such the movement of water through the system will show up as quakes. Larderello is also located near by too

Yeah Gray-wolf. It does look that way, there were people on the cam for much of the day and a secondary camera went up too. Not 100% sure yet what they have put in though.

It could be the wind... where that seisometer is located it has been pretty windy for the last 24 hours or so (30mph) so it may be picking up alot of background noise at the moment. Some of it may be noise from Katla especially if you run along the 1600 hour line and compare this to the icelandic meto this coincides with what appears to be another harmonic tremor building again so i wouldnt be surprised to see a cluster of quakes over the next couple of hours. On another note... looks like Icelandic Authorities are uping their preparedness and have issued local warnings. we have also got a new webcam as well which can be found at http://live.mila.is/katla/

Katla if she were to erupt would likely have an eruptive phase of VEI 4 or 5 (only once has it ever believed to have hit 6) as this is the historical norm. In context Eyjafjallajokull's eruptive phase was VEI 3-4 and was mainly the result of the rapid melt of the glacier above the volcanic fissures that created the explosive reaction with the magma. The biggest eruption in living memory was probably Mount Pinatubo in 1991 which had a VEI6 eruption and that was a beast!!! As for effects on climate... mixed opinion, volcanoes this far north tend to have a smaller bearing on climate than if it was on the equator for example but again that would depend on how much material is emitted and to what altitudes. Flights depend on the immediate weather patterns and where the wind blows.

Totally agree, Jon's blog is well worth keeping an eye on not only for direct content which he translates for us but also because he has his own equipment in Iceland too which provides first hand data and insights.

Myrdalsjokull is a funny area at this time of year (normal to be active in the summer) for quakes and trying to tell whether they are to do with the likes of Katla or whether they are likely to be weather or glacial induced. Many of the tremors in the last few weeks are highly likely to have been due to movement in the glacier and with the spell of bad weather in the area which often shows up on the seismometers. The 3.2 this evening however does appear at first glance to be an indicator of magma movement (this can be assumed due to its depth) and may be some form of intrusion within the Katla system..., As Jon on is blog will often point out, this in itself is nothing unusual but then again could be the start of something.

Fox news suggesting that tidal surge may coincide with the high tide especially along long island

The depth is around 6km.. This is itself is quite shallow for a quake. The 0.1 will likely initially have been down to lack of instrumentation in the east and such events needing reviewed.

Are there any exclusions in the poll? It snowed every month of the year in Scotland last year for example albeit above 1800feet in july/august

Things are pretty normal for the time of year here in Glasgow and the surrounding area.. average mild summer however there was a major storm in late may which must have left a lot of the woodland shocked if thats possible as a lot of trees saw their foliage turn yellow and brown within a week of that event and this colour has continued through the summer. Should start to see the natural change in the next week or two here as summer usually drifts to autumn in mid august here.

BGS has it at 3.9 http://www.earthquakes.bgs.ac.uk/recent_events/uk_special/alert_info_uk.htm

Etna really putting on a show again..

As bobbydog mentioned, there is speculation that a small eruption may have taken place overnight but it was not large enough to break through the glacier. I think this assumption is being made due to the glacial flooding that has taken place with some of the local infrastructure being damaged. Authorities are also evacuating the immediate area around the volcano although i would guess at this time that thats more a precaution due to the flooding. Katla did have a phase like this around Easter however there was no apparent eruption with instead just the increases in harmonic tremors that we are seeing now, this could be due to magma moving within the system but may not be indicative of a imminent eruption. Still, exciting as ever in Iceland and worth watching. http://www.vegagerdi...velar/sudurland Above link to surrounding webcams... will give an idea if large flooding occurs http://www.ruv.is/katla Above: the view from south east to Myrdalsjokull glacier which covers katla. Etna is also putting on a bit of a show at the moment too and has been so for the last week... worth a look at the cams to see some of the lava bombs being thrown out

The harmonic tremors at Katla are still pretty high and intense and are being picked up quite far away (about 65km) from the volcano. So far it seems to have quietened slightly but the tremors are not back to any kind of background level. Whether there is enough ooomph so to speak to initiate a full eruption is still to be seen. As can be seen... the background noise is around the 3000 Hz range with the event overnight being clear towards the end of the chart

Historically Katla is overdue an eruption and quite often goes off with a bang (VEI4-6 as an average). She is one of the bigger volcanoes in Iceland and often a eruption is marked by glacial floods as it is completely covered by a glacier.