Convective / Storm Discussion - 27th January 2014 onwards

[vladthemert]

reading on another forum hail could be 8-12mm in size

[poseidon]

Today looking not bad, but tomorrow looks as if the potential may be greater, up to 500j/kg CAPE and LI values of -2 and maybe even lower for localised spots. 

MO saying showers could be heavy by Sat afternoon with localised hail and thunder. Seems like the main problem is the lack of moisture though. Mixing ratio looks to be only around 4g/kg on Lightning Wizard.

Edited March 21, 2014 by poseidon

[Arnie Pie]

Visible convection in the upper atmosphere starting over Birmingham

[poseidon]

Visible convection in the upper atmosphere starting over Birmingham

Same around this way, nothing much on radar yet though.

Edited March 21, 2014 by poseidon

[cheese]

I felt some raindrops on my lunch break earlier - very convective skies.

[Arnie Pie]

Hail shafts to the West

[TonyH]

Nice clouds and showers now on Brumcam

[Chris K]

I've been looking forward to spending more time in this thread again...let's hope 2014 is a real convective year!

 

Spring 2013 was quite disappointing as if I remember rightly it was overall very quiet on the convective front...(down here anyway)

 

Anyway...we've had a couple of hefty showers here near Bristol and hopefully may see some more convective showers darting around this afternoon, as well as tomorrow! 

Edited March 21, 2014 by Chris K

[Arnie Pie]

Lovely rainbow on Tonys cam

 

http://llanwnnenstream.no-ip.org:8080/

 

Edit; great big bugger it was....full arch, and a sign of the weather coming into Brum

Edited March 21, 2014 by Arnie Pie

[Spikecollie]

Yep, some nice clouds out there. Just started raining quite heavily here in Dijon but there's a layer of what I think is Nimbostratus (too high for stratus) obscuring my view of the more interesting clouds. It's a nice purpley, black out there, so something interesting should happen even if it's just very heavy rain.

Edited March 21, 2014 by Spikecollie

[Arnie Pie]

Off out now.....so leaving Brumcam on Sunset mode for the rest of the evening......Lets hope the cell thats passing Worcester makes it to the party

Looking forward to tomorrow

[Mapantz]

Lots of sferics in that line out to the west, I'm sure they'll vanish by the time it gets here!

Edited March 21, 2014 by Mapantz

[Convective]

Very, very dark here now but nothing more than rain and sleet.

[poseidon]

Off out now.....so leaving Brumcam on Sunset mode for the rest of the evening......Lets hope the cell thats passing Worcester makes it to the party

Looking forward to tomorrow

Arnie, what camera are u using? It's a very clear picture.

[Arnie Pie]

Cheers pos.....It`s a Canon HV 20 camcorder

[Bluebreezer54]

Fabulous rainbow and orange coloured clouds earlier this evening here in north west London.

[Liam J]

Intense downpours with hail mixed in and some sharp temperature drops, only 3.0*c. 

[poseidon]

Estofex forecast for tomorrow....

 

 

... Western Europe ...

Very cold upper levels overspread the British Isles and France in the wake of the cold front, enabling a few hundred J/kg of CAPE under weak vertical wind shear. Scattered to widespread thundery showers are expected. Activity will likely be maximized over Ireland, England and the Bretagne during daytime and over the Channel region overnight. A number of funnel clouds and an isolated land- or waterspout are possible.

[poseidon]

Still the odd strike showing up in the SW.

[Mesoscale]

Showed this in the South East thread, picture sucks but I thought it may have been a funnel cloud/tornado but someone else suggested it might be a hail shaft.

[poseidon]

Showed this in the South East thread, picture sucks but I thought it may have been a funnel cloud/tornado but someone else suggested it might be a hail shaft.

Looks like hail to me.

[Flipflop]

Nice to see some anvils with hail dropping today wasn't expecting a show of such but was pleasantly surprised when i took the pooch for a walk....Nice to see the atmos showing some emotion at long last, its been an age.

[Convective]

Can see clear, crisp cumulonimbus columns stacking up out there this evening, lit up by the moon. Heavy graupel showers on and off at the moment.

[Darren Bown]

Looks like a promising day convection wise today with Estofex having most of the UK under a storm risk, highest potential being down south.

Had some great hail showers yesterday.

[Liam J]

Cumbria Police warning that snow showers are falling over parts of the county and affecting the M6. Looks like a good day coming up with some nice cloudscape potential, a mixture of rain hail sleet & snow likely depending on altitude/intensity of showers.  

Edited March 22, 2014 by Liam J