Oh interesting,  I didn’t realise that !? What is normally said ? 🙂

Normally just rain. I imagine they have created a new category, makes sense.

BTW looks like a line of convection has kicked off over the North Downs in Hampshire/Surrey and heading north.

Forecast map shows the South Downs having their turn tomorrow

Oddly there's two new categories, "Thunderstorm" and "Lightning". I'm not sure when you'd use one without the other being relevant though, and why other hazards would not deserve their own categories as well as lightning. A thunderstorm can come with damaging winds due to RFD, downbursts and obviously tornado potential, as well as large hail etc.

Just stick to the one new category of "Thunderstorm" IMO.

Warnings out for localised storms in the far S/SE for this afternoon:

https://www.metoffice.gov.uk/public/weather/warnings#?date=2018-07-05

Vis Sat showing some development in this area already. Also some over the Pennines that could develop into showers later.

I'm in the warning area & not suprised as the sky is looking interesting right now. So I may get lucky & see some lightning later!

Sky very boring and more.like infill to become overcast and dull today despite they forecast sunny and 30.  In order to get storms we need several hours of sun and heating.  

Convection does seem to be just spreading out beneath the capping inversion at the moment.

Still clearer along the coast though and I think this is why the high-res models mainly show any heavy or torrential shower development restricted to that area as the convergence zone moves over surfaces that have had more in the way of surface heating.

Speaking of which, the convergence line will likely be drawn very close to the coast due to the relatively weak heating further inland; the sea breeze isn't being drawn in as much as it could have been. I can already see evidence of this in the weather observations which show a SW wind in Bournemouth but a NW wind just about 5 miles inland at Hurn.

Here, it's currently largely cloudy with a bit of a breeze but an air temperature of 24*C thanks to sunny conditions lasting until mid-morning. One of those 'it's warmer than it looks' situations.

Having had a couple of hours without much in the way of direct surface heating, however, the instability is pretty poor in the lowest levels of the atmosphere - I expect it will come down to the lifting of mid-level air parcels to get much going here. Most often this just results in some sporadic light rain but we'll see!

I'm still in generally sunny sticky skies with little breeze.

According to the radar and looking north I would not be surprised to see some raindrops. It is more or less directly overhead says rain today.

Well we had some cloud today ( early PM) but nothing that ran in front of the golden orb......

I remember folk telling of a time when summer was a swap over from spring to autumn and finished in a flurry of 'back to school' sun for a week in early Sept.......

Hard to believe it these days of record new numbers of vineyards being opened here in the UK ( last year) and all our gardens in need of mediterranean planting scheme..........Geraniums seem to like it?

Local flooding on the Kent-Sussex border

https://www.standard.co.uk/news/uk/flash-flood-strikes-at-tunbridge-wells-in-kent-causing-travel-chaos-a3880466.html 

but not so far away

https://watchers.news/2018/07/05/record-36-605-lightning-strikes-in-a-day-large-hail-destroys-homes-cars-and-crops-france/

The Tunbridge Wells storm was one of those brief, small affairs that packed a lot of punch as far as I can see.

In our part of the town there was a couple of minutes of very heavy rain and that was about it although that was enough to cover some of the roads in gravel and debris - the radar at the time had some very heavy returns around so I imagine the Pantiles etc. were under the storm for a little bit longer and the drains couldn't cope. That part of the town is at the bottom of a valley too which means any really heavy rain does cause the drains problems.

There could be quite a few thunderstorms breaking out across western areas on Friday evening. Should this materialise, it could bring the first significant rain for weeks, with the chance of flash floods as the rain falls onto parched ground.

Looks like a thundery shower just to the north of me as I type this in the office. Will it or won't it bring the first thunderstorm of the summer to my location?

Ah it's doing what its predecessors do best - dissipate according to the radar.

Maybe another day.

The view from Purbeck was of something large, black and murky in that direction. Now I see the MetO wettest place yesterday was Middle Wallop (airfield on Salisbury Plain) at 16mm.

Recent heavy rain and ongoing thunder in Basingstoke. A line of slow moving showers is gradually developing in situ.

Plenty of lightning and thunder just to the east of my plot but they are all missing by a couple of miles. Warminster have had a fair bit of flooding and reports of other areas getting the same. Today has been quite comfortable temp wise as the storms have brought some cool air with them, very welcome indeed.

About an hour's worth of rumbles from a storm that trundled slowly by to the SE/E over the high moorland. Went very murky here and it all kicked off when the convection got an extra lift from the high ground. One impressive ground-shaker that struck close to Biddulph Moor - the sound took 15 seconds to get here! Just a few large spit spots from the storm edge - hardly wet the ground!