MetJam

MetJam

@metjam.co.uk

Jamie. BSc Environmental Science Student at University of Reading. Communications Director @ TORRO Avid weather nut from coastal Kent doing weather updates for the SE. Space weather & astronomy thrown in whenever that looks interesting too! metjam.co.uk

1.9K followers260 following3.5K posts

Pinned

One to replace the previous pinned post - there’s a whole load of weather on this page so feel free to stick around if you want to with a sprinkle of aurora whenever that peps up. I hope this picture of me and a goose from this morning is suitable for now!

A brief polar maritime airflow over England this afternoon helping to show these deep blue, crisp skies - it’s absolutely stunning here in Reading 👌

Warm Front Mondays - the name of an indie rock band that probably exists - hopefully their music would not be as depressing as today.

MetJam reposted

Incredibly close to the UK October MSLP record with 948.1 hPa at Stornoway at 22Z Saturday, but just slightly north of the centre of #Boelo. It's likely a lower MSLP value would have been recorded had there been an observation station farther south on Harris. bsky.app/profile/danh...

Dan Holley@danholley.bsky.social

As Storm #Boelo tracks across/close to N/NW Scotland on Saturday night, its central pressure is likely to be 946-949 hPa. The current UK October low MSLP record is 947.9 hPa (Storm Amy 2025). There's a chance we could beat this... just one week after near-record high MSLP! bsky.app/profile/danh...

Someone tell the stratosphere that it's only the 25th of October

wxd-london.bsky.social@wxd-london.bsky.social

[1/2] 🌀 GEFS SSW: ALERT ↑ (41.9%) 13/31 members show reversal signal. Vortex currently moderate (21.6 m/s westerlies). 5/5 runs in last 24h elevated.

A warm front tomorrow morning will make conditions miserable again (overcast and wet); it then clears by tomorrow evening, and another front (this time a cold front) sweeps through Tuesday morning. Strong winds, heavy rain, possible hail and thunder in any squall that forms on Tuesday.

Both fronts are associated with the deepening low pressure system sat to the NW of the UK

I’ve just spent 10 hours in @princecharlescinema.com; it’s definitely something I’d recommend if you’re one for loving sleep deprivation and being delirious having had zero sleep (hard to tactically nap during horror).

My poor umbrella has been annihilated by the wind tunnel near Reading station - absolutely dire times 👎

947.9 hPa is the October minimum pressure reading record for the British Isles; Storm Boelo may get rather close - it depends on the pressure readings on the hour (which I believe are used for records rather than minute-by-minute recordings).

Cold conveyor belt associated with Storm Austen now arriving in Reading - steep increase in wind speed, veered NW’ly and temperature drop

Timelapse from 13:08 to ~13:40, can tell slight changes in cloud movement above towards the end of the timelapse.

Storm Austen this morning at 06:30 UTC from satellite imagery - Scilly St Mary's was up to 76 mph at 04 UTC this morning; unofficial stations have read higher across Cornwall.

The centre of Storm Austen is starting to become visible on radar; the fronts further east are helping to douse southern England. The strongest winds are currently on the NW flank offshore, but we have some strong southerlies in play (67 mph at Scilly St Mary's).

Nowcast model for 23 BST shows these stronger winds offshore; they will move onshore after the centre of the low runs through Cornwall. Rough timings for the strongest winds are around 04 BST on Scilly and 05/06 BST for Cornwall.

Very neat frontal cloud from Storm Austen - a clear indicator as to when its impacts will start to be felt.

Stunning - the Met Office FAX chart has Storm Austen just offshore the south coast at a pressure of 978 hPa at 06 UTC tomorrow. Cornwall looks set to record wind gusts of 60 - 70 mph widely, and upwards of 80 mph in more exposed areas.

Storm Austen this morning, as it begins to rapidly deepen, a nice dry intrusion into the storm is evident and is beginning to take on the classic Shapiro-Keyser cyclone model look.

Storm Austen is on its way - a classic baroclinic leaf feature beginning to develop as it begins to undergo deepening.

MetJam reposted

The 2026 UNEP Emissions Gap Report is out: The Point of Return. 🌍🌡️🔥 It's sobering but actionable. Decades of inadequate climate action have closed off opportunities to limit warming, but ambitious action today can still prevent much greater harm. A thread of some of the highlights 🧵

Amber warning out for Storm Austen in Cornwall - starts at 3 am on Friday and ends at 10 am on Friday.

For Storm Austen, the consensus currently (from current model output) appears to be that Cornwall bears the brunt of the winds (upwards of 60/70 mph gusts) as the low tracks through central southern England and into East Anglia. There is still a fair amount of model spread.

The exact position will obviously vary over the next few days and also confidence in wind gusts will also increase as we get closer to the time

A small deepening low (not too strong, only ~995 hPa) looks to move through tomorrow morning and make things windier and wetter by the afternoon. In the evening and into the night, showers look to develop in the English Channel, and some may clip the south coast.

I had a couple of mates be nosy and ask to watch it, so I've put my section up on YouTube - I did have it unlisted, but then thought I might as well just make it public 😁 www.youtube.com/watch?v=a4Q8...

youtube.comTORRO on BBC Radio Essex 19/10/26YouTube video by Jamie M
MetJam@metjam.co.uk

If anyone is awake and sentient in Essex, I'll be on BBC Radio Essex in about 45 minutes to discuss the damage seen in Walton-on-the-Naze and Frinton on behalf of @torrouk.bsky.social. Please do send in any reports of damage, as well as any videos/photos - every little crumb of data helps

That is some stunning model output for Friday's low-pressure system from UKV, which would probably look amazing on satellite. I'm a bit doubtful that it'd come out looking so clean in real life!

I'm fairly reluctant to post model output for a low-pressure system like this that's as far out as this is, so take it with a pinch of salt 😉

It's going to be rather damp here in Reading tomorrow - the far east may just miss most of it. I will have a look at Friday's low-pressure system in the next couple of days - the best model 'agreement' (not a lot of agreement!) seems to show the strongest winds west of Cornwall.

If anyone is awake and sentient in Essex, I'll be on BBC Radio Essex in about 45 minutes to discuss the damage seen in Walton-on-the-Naze and Frinton on behalf of @torrouk.bsky.social. Please do send in any reports of damage, as well as any videos/photos - every little crumb of data helps

Absolute drenching for Kent and parts of Essex today - that area of lower heights is really making things miserable in a NE'ly that's helping to keep temperatures around 10-11ºC.

In all the years of posting weather on this little account, I never imagined I'd one day actually be presenting at a weather conference, but I did so today 😁

Maximum wind gusts from the Great Storm of 1987 between 18 UTC on 15 October and 16 October 1987; pressure readings are from ERA5 reanalysis.

MetJam reposted

Introducing AIFS-COMPO, a new data-driven forecasting system for global atmospheric composition up to 10 days ahead. Adapting ECMWF’s AIFS to aerosols and reactive gases, AIFS-COMPO is trained on data from the Copernicus Atmosphere Monitoring Service. ➡️ www.ecmwf.int/en/about/med...

03 UTC reanalysis of Friday, the 16th of October 1987, during the Great Storm of 1987, with the use of ERA5 data alongside MIDAS Open data.