Communicating changes in the intensity of UK heatwaves Global warming of ‘just’ 1°C does not necessarily sound like a problem. But in the UK, the hottest summer days are warming much faster than typical summer days, changing our experience of heatwaves rmets.onlinelibrary.wiley.com/doi/full/10....

UKCEH and @rothamsted.bsky.social modelling shows how climate change could reshape GB’s rivers/farms by 2050. Findings: river nutrients ↑20–30%, ↑ west coast fluxes (3–10%), ↓ east (3–13%), 5-20% drop in most arable yields, 20% boost in maize yields Read more: agzeroplus.org.uk/news-and-med... 🧪

Fantastic new @ukceh.bsky.social dataset now out: 30-minute actual evapotranspiration from 45 sites for up to 10 years, with measurements co-located with rainfall and multiple soil moisture measurements from our @cosmosuk.bsky.social network over the same period: catalogue.ceh.ac.uk/documents/c0...

What happened with river flows, groundwater levels and reservoirs in January? The latest UK Hydrological Summary was published today! nrfa.ceh.ac.uk/sites/defaul... (PDF) 2/

From drought to downpour, 2025 brought the UK whiplash weather 🌦️ New on our Counting the Earth podcast, we delve into the UK's weather extremes. After a dry spring & four heatwaves we had significant rainfall later in the year. By December, total rainfall reached ~90% of the UK average. 1/

Latest UK Hydrological Outlook 🌧️ River flows in eastern Scotland likely normal to above normal over next 3 months; flows elsewhere in the normal range except southern England. Here, river flows & groundwater levels likely above normal to notably high. See more: hydoutuk.net/latest-outlook 🧪

We need to talk about drought. Yes, that's right, drought! Our weather is experiencing extremes – from flooding to drought – so on the next episode of Counting the Earth, we'll be delving deeper into this whiplash weather. 🎧 Subscribe now and never miss an episode: www.ceh.ac.uk/news-and-med...

Putting the hot & dry summer of 1976 into context 50 years after the extreme summer for the UK and Ireland, what can we still learn? climatelabbook.substack.com/p/the-summer...

Plausible worst-case climate futures and extreme events for the UK Paper by Arnell et al.: agupubs.onlinelibrary.wiley.com/doi/10.1029/... Article: www.theguardian.com/environment/...

Mobilising multilateral action is essential for water security. A new policy brief from the UK Committee for International Hydrology (UKCIH) calls for coherent global action as billions face worsening water challenges. Read it here ➡️ www.ceh.ac.uk/sites/defaul... [PDF] 💧🧪 1/

Exciting jobs & PhD studentship! 1) postdoc in historical windstorms: jobs.reading.ac.uk/Job/JobDetai... 2) postdoc in extreme event storylines: jobs.reading.ac.uk/Job/JobDetai... 3) PhD in redeveloping the Central England Temperature series (led by Tim Osborn): www.findaphd.com/phds/project...

🌍 CANARI scientists @ukceh.bsky.social briefed the @houseoflords.parliament.uk Environment & Climate Change Committee on drought preparedness 🏜️ @jamiehannahydro.bsky.social shared expert evidence on advances in drought monitoring and changing risks of future droughts 🔗 canari.ac.uk/2025/12/04/c...

📣 Call for abstracts #EGU26: How do climate variability patterns (eg ENSO, NAO, AMO) influence water resources & extremes like floods & droughts? 🌍💧 Submit by 15 Jan! 🔗 https://meetingorganizer.copernicus.org/EGU26/session/55947 #Hydrology #ClimateVariability #WaterResources

💧 📢Calling all river flow modellers heading to #EGU26 The UK Hydro-MIP team are inviting submissions for their session on Learning from model differences: model intercomparison, benchmarking and multi-model approaches in hydrology (HS2.2.8) meetingorganizer.copernicus.org/EGU26/sessio... 🧪 1/

Two exciting postdoc positions available! Historical windstorms - working with two insurance companies to explore UK wind risks: jobs.reading.ac.uk/Job/JobDetai... Extreme event storylines - working as part of a EU collaboration on event attribution: jobs.reading.ac.uk/Job/JobDetai...

Looking for a #PhD in #ClimateExtremes? We are advertising a project attributing causes of recent #droughts using counter-factual storylines. Based in #Edinburgh, working with Andrew Schurer, me, @gabihegerl.bsky.social, & @edhawkins.org tinyurl.com/5n7b52fr

The Rainfall Observers Over the past three centuries, thousands of people across the British & Irish Isles have recorded rainfall, often every day for decades. Here we recognise some of the individuals who made particularly important contributions. rmets.onlinelibrary.wiley.com/doi/10.1002/...

Heading to IAHS 2025 in Roorkee 🇮🇳? 🌏 I’m co-hosting a side event + giving a talk with the ROBIN Network! Let’s talk reference hydrological networks, drought indicators & climate change detection! 🧵👇

Climate change is not a con-job. If you want to know more about the evidence for and causes of #ClimateChange, head to our website: royalsociety.org/news-resourc...

Excited to host a hands-on #IAHS2025 workshop with @sayaliuk.bsky.social & @wilsonchan.bsky.social 🗓️ 6 Oct, 18:00 IST | 📍 Roorkee, India Explore the ROBIN dataset, drought indicators & FlowScreen. More info: iahs2025.com/SEROBIN Register: docs.google.com/forms/d/e/1F... #ROBINHydro #Hydrology

📢 New paper! Events like the winter 2023/24 floods are wetter with higher river flows due to climate change. A worst-case “storyline” shows flows could be even higher - anticipating UNSEEN extremes is vital for adaptation. 🔗: doi.org/10.1088/1748... @ukceh.bsky.social @climatecocentre.bsky.social

🌊 Latest UK Hydrological Outlook: Normal to below normal river flows likely in southern & eastern areas over the next 3 months, with low flows for the time of year persisting in some catchments. River flows in northwestern areas likely shifting towards normal to above normal by November. 🧵🧪 1/

📢 New paper! Events like the winter 2023/24 floods are wetter with higher river flows due to climate change. A worst-case “storyline” shows flows could be even higher - anticipating UNSEEN extremes is vital for adaptation. 🔗: doi.org/10.1088/1748... @ukceh.bsky.social @climatecocentre.bsky.social

With exceptionally dry conditions in many parts of the UK this year, hydrologists at UKCEH address the question of whether #globalwarming is increasing severity of #droughts in a guest post for @carbonbrief.org

NEW – Guest post: Is climate change making UK droughts worse? ✍️ Jamie Hannaford, @wilsonchan.bsky.social, Lucy Barker, Stephen Turner ➡️ Read here: buff.ly/boBB8nU

Provisional statistics from the Met Office show that summer 2025 will ‘almost certainly’ be the warmest summer on record for the UK. It would move 2018 off the top spot and relegate 1976 out of the top five warmest summer in a series which dates back to 1884. 👉 www.metoffice.gov.uk/about-us/new...

🌊🏜️🌍 New job opportunity @ukceh.bsky.social for a Hydroclimate Scientist to work on the @climatecocentre.bsky.social and @canari-science.bsky.social projects to advance understanding of hydroclimatic extremes in the face of climate change! Apply now: ceh.wd3.myworkdayjobs.com/en-GB/CEH_Ca...

The UK Hydrological Summary confirms heightened risk of drought impacts this summer — especially in eastern Britain. June was the warmest on record for England and 2nd warmest for the UK overall. Rainfall showed stark regional contrasts, with some areas seeing less than half of average. 🧵🧪 1/

What is the hydrological outlook for the UK in the weeks and months ahead? Steve Turner talks us through the likely situation for river flows and groundwater levels. See the full outlook: hydoutuk.net/latest-outlook 🧵🧪 1/ #WaterResources @steveturner.bsky.social

📣 New paper: 💧💧💧 In July 2021 record breaking rainfall hit western Europe, we use ensemble boosting to explore different plausible storylines. These show it could have rained for longer, or over a larger area, or in a different place. Are we prepared? doi.org/10.1038/s432...

Our @ukceh.bsky.social team have written about how studying North Atlantic Ocean patterns can predict UK droughts a year in advance. Read more here: www.ceh.ac.uk/news-and-med...

🌊 Streamflow Stripes are here!!! 🌊 Just in time for #ShowYourStripes Day – 21st June 🌍 Our team at @ukceh.bsky.social has created UK river flow stripes to visualise how these have changed over time. 📖 Read more: climatelabbook.substack.com/p/visualisin... #ClimateChange #Hydrology #DataViz

CANARI scientists from @ukceh.bsky.social have created UK river flow stripes. High flows are rising in the north/west and drought risk growing in parts of the south/east. Adaptation is needed to reduce impacts from swings between wet/dry. 🔗 climatelabbook.substack.com/p/visualisin... (4/4)

🔊21st June is #showyourstripes day 🌍 2024 was the warmest year on record globally. The stripes help start a conversation about climate change and climate action🥵 Download your warming stripes here: showyourstripes.info (1/4)

As we seem to, yet again, be talking about the hot UK summer of 1976, a reminder that the UK is not the world. Yes, it was hot that summer over our small region, but the bigger picture tells a different story. And, we've had hotter UK summers since.

UK Hydrological Summary for May: Recent rainfall brought some respite but summer began with depleted river flows, groundwater levels & reservoir stocks. Increases risk of further dry weather impacts, with climbing evaporation rates limiting rainfall effectiveness 🔗 nrfa.ceh.ac.uk/sites/defaul...

New CANARI research reveals predictability for UK summer droughts up to 1.5 years in advance 🏜️ Find out more in the paper published in Nature Communications Earth & Environment, led by @amulyachevuturi.bsky.social: www.nature.com/articles/s43...

North Atlantic Ocean patterns can signal UK summer droughts up to 1.5 years in advance; offering major potential for early drought forecasting. 📢 Published in Nature Communications Earth & Environment! Read it here doi.org/10.1038/s432.... #UKDroughts #Teleconnections #Forecasting

The Telegraph is now having to publish so many corrections to articles where it attempts to find *any angle whatsoever* to attack net-zero polices that it makes sense to start tracking them here. These are the ones published since Labour won the election. "We are happy to correct the record."

Thread on new paper by @wilsonchan.bsky.social et al: Climate variability conceals emerging hydrological trends across Great Britain ⬇️

UK Hydrological Outlook for May-July ☀️🌈 River flows likely to be below normal across most of UK, with potential for current low to exceptionally low flows persisting in some catchments. Flows in western Scotland and Northern Ireland are likely to be in normal range. 🔗 hydoutuk.net 💧 1/

This Spring (March-April-May) may end up being the driest on record for the UK. This would also make it the driest of any season in a dataset that goes back to 1836. Spring in 1852 currently holds the record for driest season at 100.7 mm averaged across the UK. www.bbc.co.uk/weather/arti...

📢 Excited to share our new paper! We used large ensemble simulations to show that climate variability masks emerging hydrological impacts - and changes in droughts may remain statistically undetectable for decades. 🔗 doi.org/10.1016/j.jh... @ukceh.bsky.social @canari-science.bsky.social

📢 Excited to share our new paper! We used large ensemble simulations to show that climate variability masks emerging hydrological impacts - and changes in droughts may remain statistically undetectable for decades. 🔗 doi.org/10.1016/j.jh... @ukceh.bsky.social @canari-science.bsky.social

📢 We're excited to announce the #ROBINHydro dataset & paper are published! 🌏 This makes available for wider use data for 2,386 global gauging stations with natural or near-natural catchments— a major step forward in accessible, global-scale streamflow data. 🔗 www.ceh.ac.uk/news-and-med... 🧪

87 years ago. In April 1938, Guy Callendar published the first evidence from thermometer observations that the world’s land areas were warming. He also linked the observed warming to the increase in atmospheric CO₂ from burning coal. 87 years ago. rmets.onlinelibrary.wiley.com/doi/abs/10.1...

👀 Keep a close eye on recent hydrological conditions with the UK Water Resources Portal: ukwrp.ceh.ac.uk #hydrology #rivers #groundwater #soils

☀️ The dry, warm weather in March and early April in much of the UK led to noticeably dry ground and river flows lower than usual - but recent rainfall has provided some relief. Our hydrologists have been assessing the impact on water resources ➡️ tinyurl.com/Apr25hydro #weather #WaterResources

💧Latest Hydrological Summary shows: -Below-average March rainfall in all areas of UK after dry winter -Many rivers in N & W have exceptionally low flows -Record low March groundwater levels in N Ireland, Scotland, Wales 🔎https://nrfa.ceh.ac.uk/sites/default/files/2025-04/HS_202503.pdf

Amid the recent dry conditions across much of the UK, the latest Hydrological Outlook, published today, outlines projections for river flows, groundwater and rainfall for the next 3 months. Download the full report via hydoutuk.net/latest-outlook