Prof Penny Endersby

Think we’ve fixed the scrolling in the app beta now. If it isn’t yet fixed on the web beta it will be. Thanks for the feedback

The best I can say is that tomorrow will be - relatively - better

But so well forecast darlings!

And we work with suppliers to ensure we buy net zero compute, but for weather modellers the equation does look rather different: physical modelling is so energy consumptive that AI/ML has the potential to be lower energy to train and far lower to run. Providing always it can be made trustworthy

Two good points might take two tweets. We won’t make anything operational unless it’s been validated to the same standard as our traditional methods, and we are already finding that we need broader validation techniques: the traditional ones don’t cover all the aspects 1/2

Our ambition is to deliver the optimum blend of AI and physics modelling for #weather and #climate & we are starting to systematise what options might look like. You can get a lot from the image below or more from the blog. Today we are mostly at the edges of the picture as validation is critical 🧪

Make the best of today

Euphuism and euphemism are different. Happy to refer 12 C either to my mediaeval historian husband: I’m a physicist as we’ve just established

Twitter accounts are based in Russia. BlueSky accounts are based in homes with, frankly, too many books, plants, obsolete cables, and pieces of rustic pottery, that could do with a bit of a tidying up, to be honest.

Seismology would be plausible for Iceland. Whatever it is, it’s evidently quite well quantified

Met Office graphic with logo. Text reads: 'New-look forecasts. Try out refreshed forecasts on our website and app - and give feedback.' Screengrabs of new-look forecasts alongside. Dark background

We’ve been getting lots of helpful feedback on our new-look weather forecasts.

Thank you to everyone who has shared their views, which is really helping to shape the future of our app and website.

Here’s our response to some of the most common feedback we’ve received ⤵️

🧵 (1/4)

A map of the UK showing where yellow warnings for snow and ice are in place on Wednesday 19th and Thursday 20th November 2025. The higher ground of northern Scotland and North Yorkshire could see 20cm of snow or more

Yellow warnings for snow and ice are in place over the next couple of days ⚠️

Many places won't see much settling snow with icy roads more of a hazard. Heavier falls of snow are likely in northern Scotland and parts of northeast England ❄️

More details👉 bit.ly/WxWarning

Oh and Reading now have a bsky account. They didn’t last time I looked

Good chance of frost at higher levels on Dartmoor, more on Wednesday and Thursday. Even the odd snow shower possible!

This is the western side of Dartmoor nearer to Tavistock but yes

A boundary stone with SS P for Samford Spiney Parish in greensward in front of the rock stacks of Pew Tor

I picked up a couple of bootfuls crossing streams on the west moor today

The old bridge and salmon leap at Horrabridge with a chain link fence in front and stone cottages across the river

View down a steep hill into Huckworthy beech hedge in foreground, tall stone houses in valley bottom, sunlit fields studded with bare trees behind

The single stone arch bridge at Huckworthy which curves elegantly as the road crosses the river Walkham

Two scarlet waxcap mushrooms in grass below a granite slab near Pew Tor

Today I walked six miles but I omitted to photograph my dinner

The higgledy-piggledy black and white Tudor house of Little Moreton Hall with a rainbow shining above it, the rainbow perfectly framing the house and surrounding moat and lawn.

Well isn't that just the most delightfully perfect frame for Little Moreton Hall?

Love a rainbow!

Photo: Chris Green

Least I can do is give this a boost!

It’s only compared with average there not an absolute value (which I don’t know before you ask me!)

www.metoffice.gov.uk/binaries/con... Yes it was that gloomy!

I have done: remarkable progress so far

Met Office graphic with text reading: 'New-look forecasts. Try out refreshed forecasts on our website and app - and give feedback'. Images showing tablet and smartphone screens with weather information.

Our weather forecasts are getting a new look! 🌤️

We’re rolling out updates to our app and website to help you stay weather-ready.

Try and give feedback now ⤵️

📱 iOS: apple.co/45TyKeB

🤖 Android: bit.ly/Try-Met-Offi...

💻 Web: weather.metoffice.gov.uk

#Weather #Forecasts #MetOffice

Thanks to Carbon brief for inviting me: and for picking a kinder freeze frame than many I have seen!

So pleased to see Emily stepping into this important role

A gathering to celebrate the handover of WIS2 from a four nation effort to a WMzo trust to enable the use of this easy route to data sharing by all nations

Stuart Brocklehurst deputy VC of Exeter University, President Al Mandous of WMO and me at the reception at the UK mission

My view from the UK seat in congress of UNSG addressing the plenary

A zoom in to the SG, UNSG and President on the dais and big screen. Guterres listening intently through his earpiece to translation from Arabic

Fulfilling day @wmo-global.bsky.social congress including a reception at the UK mission to share the work we did on the Parliamentarians’ Guide to climate change and later hearing Secretary General Guterres recognise that WMO has been at the forefront of the fight for science and truth

I like the last one. Very little shop of horrors

Good Lord!

😲