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Posts posted by Ben Sainsbury
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2 minutes ago, Eagle Eye said:
Hoping for some westward corrections, if a storm won't hit me I'd much rather it go west because of last year...
Possible funnel cloud from storm passing west of me, another time and good lightning from a storm going west of me mid morning. Another time had lightning to the west that somehow managed to light up my whole garden but didn't photograph from indoors. Only good storms going east of me were in September and October (although not the most active lightning wise for the October storm the September one was surprisingly active to be fair).
Judging by the last two days, we've seen greater Theta-W advection westwards than the models have gone for and since Wednesday is a continuation of a similar theme I'm not quite as confident with the forecast.
@Supacell How's your view of that cell that was near Skipton, photographic evidence of the cell will be key here to see if it has exhibited any supercellular characteristics. Too many people nowadays scream Supercell just by radar signature.
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3 minutes ago, Lance M said:
I was on about Friday for that part of the post rather than Weds but I didn't write it particularly well. I agree that Weds will be a far SE event
Oh yeah definitely Friday is way too far out to pin down any details!
Anyway talking about today, Skipton cell possibly supercellular.
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6 minutes ago, Lance M said:
In the Met's week ahead forecast, Alex almost has you believing it's a guarantee on Weds AND Friday. For the latter, their graphics show an occluded front coming directly out of France into CS Eng, but the models are heading it into Benelux, so not sure where they're getting that from...
Eh? To me the GFS is the only model that has the system missing the UK completely. ICON appears very good still, ARPEGE doesn't develop an intense feature which is at odds with all the other models. IMO the UKV, NMM, ICON, ECM, UKMO all have something crossing the SE and that's been the consistent theme throughout, was always going to be a SE England event unless I'm missing something.
Not saying the system won't miss the UK, but I'm more in agreement with the Met O at this point.
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39 minutes ago, The Tall Weatherman said:
I stayed up for nothing tonight for goodness sake! Now I’ll have to wait till Wednesday night which Looks prolific on the models.
Need to be careful about getting carried away for Wednesday night as this looks primarily a SE England event. Regardless, as I see it today the majority of the models have a large MCS ploughing NE across SE England. Decent instability, Strong Shear, Steep Lapse Rates all a recipe for a cracking event, but as always these have a tendency to shift eastwards. But one to keep an eye on as we're only 48-72 hours out.
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@Supacell Still in Selsey? Still a fair bit of lightning nearby.
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10 minutes ago, Mesoscale said:
The channel storm looked like a Kent clipper east of Southampton and now all the storms west of Southampton seem do be heading straight north. I am confused.
Judging by UKV 700hPa winds, it appears CS England steering flow is more northerly, whereas across the SE it looks more NE'ly.
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3 minutes ago, Supacell said:
Seeing some flashes to the south from Selsey. Fingers crossed
A little cell popping out a few strikes it seems!
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Still seeing a strike every minute or so here from either of the two cells to my SW. Getting closer
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Just now, Supacell said:
This is true. Patience is key
Exactly! The reason I say this is because currently steering winds are NNE. Cells are back building nr Bournemouth atm due to region of highest instability is to our SE. With time the storms should shift E, but sometimes the weather doesn't always play ball!
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3 minutes ago, Supacell said:
To be honest I think I am too far east. I am only seeing distant lightning and its not getting any closer ( in Selsey)
I mean it is only half 12, I think give it 30 mins to an hour and hopefully it should edge further your way.
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Can now see distant lightning to my SW, probably going off every 15-30 seconds.
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1 minute ago, Alderc said:
Best show in at least three years, some absolutely stunning IC streaking across the sky. Had lightning from three different directions at one point. Could be tough to beat this year. Very happy and with the potential for more to kick off.
Not often we have a happy Alderc so this is quite something to see
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Just now, Supacell said:
At Selsey beach and seeing lightning out to sea. If everything moves NNE I will be in for a treat.
Good to here it's paying off
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Cannot see anything here from S Oxfordshire, albeit not a great view.
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Just now, Frosty hollows said:
Thought I saw a flash just now
Eeesh I'm working right now, but I'm gonna have to venture outside if they get any closer!
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3 minutes ago, TJS1998Tom said:
Possible MCS in the making?
I wouldn't go that far yet, I don't think the wind shear profile would be supportive, however a few multicells are likely now. Some impressive cores developing.
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Well this is exciting, should be a good lightning show for areas N/NE for the meantime!
Bournemouth webcam anyone?
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Cell appears to have electrified SE of Reading too.
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Rash of cells developing S of Poole/Bournemouth, let's hope a few of these electrify. Would make sense given being in a slightly higher region of instability.
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2 minutes ago, viking_smb said:
that will be the storm by the iow mate
There's an isolated cell to the NW of IOW which may be the culprit!
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2 minutes ago, Supacell said:
Indeed. But I'm a bit far from there. I'm about 10 miles north of Portsmouth and seeing very distant flashes to the south.
I think Portsmouth, maybe slightly east is a good shout in my opinion. As instability transfers NE there may be several clusters of thunderstorms that head your way tonight. That saying there are likely to be periods of no activity at times.
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Ooh interesting, a sferic SSE of Salisbury.
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1 minute ago, kieranweatherfan said:
Is it me or is decaying as it reaches land?
They will weaken as they move N/NE into a region of lower instability, but the region of higher instability should gradually move in the same direction later tonight.
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8 minutes ago, Harry said:
Loving the latest ARPEGE and WRF NMM MUCAPE charts for tonight - keen on a decent swathe of 500 up to 1,000 J/Kg.
Edit - this is for London and SE - NMM being more generous of two.
Even ARPEGE still much better than last night. Here's GFS ML CAPE too, unfortunately no MUCAPE charts.
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Storms and Convective discussion - 1st May 2022 onwards
in Storms & Severe Weather
Posted · Edited by Ben Sainsbury
GFS, ICON & ARPEGE 18z are all an improvement on their 12z runs for Wednesday night.