Generalelectrix

Not bad, nice funnelclouds (thumbs up) Wheredyou take them, Lukey? Regards Ralph

Hi @ all Wow, amazing barrage of strikes in the channel and over the low Countries. This is so typical for the "Warm air intrusion" type of thunderstorms. Here we have warm moist subtropical air in a thin layer layer pushing over cold air of polar origin. Additional lift is supplied by pressure drop transporting it up into the colder upper layers of the troposphere. The wave nature of the warm air from the south combined with the cooler air at sea level coming from the north is a textbook example in this case. These type of thunderstorms can be of the most violent type and diurnal heating is not required here. Often overlooked in the charts.. Hopefully some action tonight in Sussex and Kent. Regards Ralph

Yes, that means another unstable day tomorrow, especially in the areas ahead of the front and directly on it, I cant really see cold air seeping in slowly in this case Waitandsee Ralph

Spot the plume In the angle of light from the sun setting in the west the plume becomes visible as the rounded hazy area ahead of the destabilizing atmosphere over the SW UK. Satellites are great toys methinks.. Regards Ralph

I have the feeling this is going to root into the lower levels of the atmosphere as soon as it hits land, NMM has already hinted something like this 2 days ago. If yes fun time is guaranteed, maybe even more tha everyone reckoned with...... Enjoy Ralph

..Loaded Gun Sky.. Ralph

those are Lenticularis or "Foehn" clouds, you happen to be near the base of some mountains? regards Ralph Edit:.. and that means that nothing will happen (yet)

Thanks Moki for posting a piccie of the real thing. Now some can finally see why they are called Altocumulus CASTELLANUS Regards Ralph Erm Will, what you posting there? Cant see no AC on either piccie, sky looks more like soap suds in my washing machine

Hi@ all Nmm 12z run has a new interesting ingredient for wednesday evening which was missing in the previous runs. Have a look at moisture at 700 hPa: The previous runs (Someone posted CAPE and LI a couple of pages previously for Wed Evening) also had excellent CAPES, but with dry air up aloft the best CAPE is no good, at the most we would be staring at turkey towers and wondering what went wrong with the plume event for the umpteenth time. This latest chart though is good, hope it stays that way, if yes I am slowly beginning to get excited too Lets see what happens Ralph

Quote Wolfgang Drill: "Ohh well that was that then!......" ..wouldnt be too sure about that, I fully concur with gottolovethisweather, have a look at his post... Cheers Ralph

Hi@ all Quote Mark: "All looking rather calm at the moment. Attached Thumbnails Thazza "loaded gun sky" , Its like the pot of milk a second before it boils over, mark my words.... Cheers ralph

Evening all. Got a huge constantly flashing storm system moving my way (am currently Lake Constance) from Zurich. Amazing rate of lightning and on radar zoom its beginning to show signature of a MCV Courtesy Metradar Here Link to Radar in realtime http://www.metradar.ch/2009/pc/index.php Amgetting into car for a chase! Cheers Ralph

It would be a bit far fetched to presume that other ascents took place over the UK noontime today and that the data is being kept from the public, if though it should be the case then it would be quite sad because its the taxpayers money which is funding this and the info should be made public, even if it is just the raw data where we have to plot out our own skew-t diagram with pen and paper. I dont want to kick off a discussion now, was just a couple of thoughts from my side. Anyway, lets see if there is something for 00z regards ralph

@ davehsug : have scoured the net, and robt also came up with one sonding,for the whole of the UK noontime today and that was Cambourne. Or is it possible that other balloon soundings are not made available to the public? As far as I know not.. Ralph

@ Robt: Went to that site and indeed, seems that Cambourne was the only place which sent up a balloon today 12z, despite of todays necessity to monitor things more closely with the plume approaching. Quite sad that a civilized and densely populated country like the UK dont invest more into such a valuable method to nowcast. Sending up a weather balloon from different locations to gain realtime data would tell us a great deal more than 1000 model runs on the computer methinks Regards Ralph