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MetJam

@MetJam_

Jamie. BSc EnvSci Student @ UoR. Communications Director @TorroUK. Weather mad, mainly focused on SE England. Aurora/space weather. Occasionally a photographer!

 Reading/Herne Bay
metjam.co.uk
Joined May 2016
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Photo by MetJam (@MetJam_)Photo by MetJam (@MetJam_)Photo by MetJam (@MetJam_)Photo by MetJam (@MetJam_)Photo by MetJam (@MetJam_)Photo by MetJam (@MetJam_)Photo by MetJam (@MetJam_)Photo by MetJam (@MetJam_)Photo by MetJam (@MetJam_)Photo by MetJam (@MetJam_)
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!
Image from MetJam (@MetJam_)
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A likely minimum relative humidity of 5.8% (±2.5%) at the University of Reading observatory on the 25th of April this year is the lowest reliably documented on record in lowland England - from a new research article by Burt and Harrison (2026). doi.org/10.1002/wea.70153
Subsidence inversions – the surface water vapour thief

Subsidence inversions – the surface water vapour thief

A deep anticyclonic subsidence inversion reached near-surface levels over southern England on 25 April 2026, resulting in relative humidity levels falling below 15% widely and sub-10% in the Reading...

rmets.onlinelibrary.wiley.com
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Our analysis of damaging "straight-line" winds that impacted parts of S. Yorkshire + Lincolnshire on evening of Sunday 29 March 2026 has been published 📖 Meteorological setup in @RMetS "Weather" journal: rmets.onlinelibrary.wiley.co… Detailed damage reports: torro.org.uk/research/event
Image from TORRO (Tornado & Storm Research Organisation) (@TorroUK)
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On Sun 29 March 2026, damaging winds occurred in South Yorks and Lincs associated with shallow convection just 3–4 km deep. Radial velocities of up to ~80mph were detected. The event has been published as a Spotlight article in @RMetS journal "Weather": rmets.onlinelibrary.wiley.co…
Image from Dan Holley (@danholley_)
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Foggy observation this morning as high pressure remains in charge - a MSLP reading of 1029.7 hPa off the Kew barometer in the Brian Hoskins building this morning.
Image from MetJam (@MetJam_)
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Radiation fog forming on campus here in Reading this evening - spooky
Image from MetJam (@MetJam_)
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Grand sunset tonight.
Image from Official Weather UK ☀️ (@Official_WXUK)
Image from Official Weather UK ☀️ (@Official_WXUK)
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A Sudden Stratospheric Warming (SSW, reversal of zonal mean wind at 60ºN) may be on the cards for this time next week - it would likely be the earliest on record. Any impacts will be interesting to monitor - no real historical precedent for what might happen this early.
Image from MetJam (@MetJam_)
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teapawt.net/MetRyan96/status/21151… I think Ryan sums it up well - lots of 'spinning plates'
MetRyan (@MetRyan96) profile pictureMetRyan@MetRyan96Oct 27
How things aloft develop after this SSW is really unknown The seasonal models didnt see this on their October updates SO do we see a weak PV continue well into winter, with the trop leading the way? Or do we see a rapid recovery with a quick imprint lower down(meaning more unsettled perhaps)? Do we still see a big disruption later in winter like the seasonals modelled? Lots of spinning plates
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High pressure looks to set up by the end of this week - it's within the top 97.5-99%iles of climatology; how sunny it'll be depends on the orientation of the high, which is still being played with. Near record high to near record low to near record high, the weather for you. 😁
Image from MetJam (@MetJam_)
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A brief polar maritime airflow over England this afternoon helping to show these deep blue, crisp skies - it’s absolutely stunning here in Reading 👌
Image from MetJam (@MetJam_)
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Frontal clearance moving over Reading this morning
Image from MetJam (@MetJam_)
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Warm Front Mondays - the name of an indie rock band that probably exists - hopefully their music would not be as depressing as today.
Image from MetJam (@MetJam_)
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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.
Image from MetJam (@MetJam_)
Image from MetJam (@MetJam_)
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Both fronts are associated with the deepening low pressure system sat to the NW of the UK
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Days will begin to lengthen in just 57 days.
Met4Cast - UK Weather (@Met4CastUK) profile pictureMet4Cast - UK Weather
@Met4CastUKOct 25
Days will continue to shorten for another 56 days.
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I’ve just spent 10 hours in @ThePCCLondon; 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).
Image from MetJam (@MetJam_)
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Very wet in Leicester Square from that squall
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MetJam retweeted
James C-H (@jch_2405) profile picture
James C-H@jch_2405Oct 24
Replying to @MetJam_
@MetJam_ @metoffice I chose to leave work at the wrong time. That one hell of a band of rain that just passed through Sunderland
Image from James C-H (@jch_2405)
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Abysmal light levels today here in Reading
Image from MetJam (@MetJam_)
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A weak tornado affected Portchester, Hampshire, just after midnight on 23 October, with a 1.6 km land track. It was associated with heavy showers that moved inland from the Channel, linked to Storm Austen. More details to follow after the analysis has concluded.
Map of Portchester, Hampshire, showing damage points and debris fall recorded in the TORRO survey, with a 1 km scale bar and a locator inset of southern England.

ALT Map of Portchester, Hampshire, showing damage points and debris fall recorded in the TORRO survey, with a 1 km scale bar and a locator inset of southern England.

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