Scholar

Michael Wehner

H-index: 83
Environmental science 52%
Geography 18%
ipcc.bsky.social
📣 PRESS RELEASE

Registration for experts interested in serving as Expert Reviewers and providing scientific comments on the First Order Draft of the Special Report on Climate Change and Cities is now open!

Registration closes 30 Nov 2025.

Read more 🔗 www.ipcc.ch/2025/09/17/p...
michaelfwehner.bsky.social
It would be interesting to calculate the partitioning of cooling by upwelling compared to energy converted to storm energy.
michaelfwehner.bsky.social
Thanks. And btw, in our cat 6 paper, we do not see substantial risk in the open Atlantic.
michaelfwehner.bsky.social
Does eyewall replacement cause the expansion in size? Or is it some other physical mechanism like available energy?
michaelfwehner.bsky.social
Jeff, what is the mechanism causing this expansion in physical size?
michaelfwehner.bsky.social
I am an executive editor for a journal. I would ask now. It may be that they are having trouble finding a suitable AE. Or it may have slipped between the cracks. In any event, the editor should let you know.
michaelfwehner.bsky.social
I presume these values are from the NOAA look up table. Recent work finds that they underestimate the heat index for very high values. iopscience.iop.org/article/10.1...
michaelfwehner.bsky.social
"Extreme weather events, such as hurricanes, droughts and heatwaves, are becoming more frequent and intense..." Present tense; attribution is recognized with this statement.
timosbornclim.bsky.social
Delighted to announce that Ben Santer is now an Honorary Professor @ueaenv.bsky.social & the Climatic Research Unit (CRU).

Ben is returning to his "academic home": he did his PhD in CRU before his stellar career developing "fingerprint" methods to identify human & natural effects on climate.
Photo of Ben Santer
michaelfwehner.bsky.social
There are very few of us doing rigorous event attribution in the US. Extreme weather events are increasing but attribution scientists numbers are decreasing.😞
frediotto.bsky.social
What caused deadly landslides in Colombia? Finding out, should be easier. Tropical climates are complex, but if data are held by companies & organisations hiding them behind walls of bureaucracy it becomes impossible. @wwattribution.bsky.social study: www.worldweatherattribution.org/growing-expo...
picture of a landslide in Medellin
michaelfwehner.bsky.social
Having engaged with numerous professional statisticians, I find this a gross over generalization. As with any cross-discipline, success requires two way communication. And there is a language barrier. But recent workshops are bridging this gap. See my opinion piece: doi.org/10.1029/2019...
Climate Science Needs Professional Statisticians - Eos
Climate science needs its own specialized “climostatisticians” as integral members of multidisciplinary research teams.
doi.org
michaelfwehner.bsky.social
When we wrote the Cat 6 hurricane article, we recognized that a single number cannot convey local danger that individuals might face & instead recommended that NHC products, especially maps, are superior. NHC warnings have also become more direct. i.e. "certain death". Such messages might help here

Reposted by: Michael Wehner

cabot-institute.bsky.social
☀️Heatwaves☀️, like the one we're having this week, will be made even more dangerous by climate change.

Dr @eunicelo.bsky.social is on a mission to map how heat can affect people living in cities like Bristol.

#heatwave @bristoluni.bsky.social @ebibristol.bsky.social
michaelfwehner.bsky.social
Apologize that i am such a curmudgeon. Comes with age...
michaelfwehner.bsky.social
To clarify.Impacts are often binary, then we can make the binary causal statement. But meteorology is not so binary. (And some impacts are not binary, like heatwave deaths) and it is important to note that impact attribution is in early stages. 2 important papers in review now
michaelfwehner.bsky.social
The dam breach is an extreme weather impact & I would agree. But I maintain my hot button for the ‘weather’ event. An important but subtle distinction
michaelfwehner.bsky.social
The title hits my hot button on causality. It causes them to be worse but doesn’t cause them per se. Complex events have complex causal factors
michaelfwehner.bsky.social
What bothered me is that the anchor asked her question in the future tense. It should be in the present tense.

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