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str

@storpp.bsky.social
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Reposted by str
Daan van den Broek @daanvandenbroek.com · 25/09/2026
📚 Paper alert! Our paper "The 2026 cold wave brought northern Fennoscandia its coldest two-week period since 1987" is out now in Weather. 🧵(1/14)
(a) ERA5 2m temperature anomaly between 31 December 2025 and 13 January 2026, with the analysis domain (66°N–69°N, 20°E–30°E)indicated in red. (b) ERA5- based time series of the lowest 14-day mean temperature over the northern Fennoscandia analysis domain highlighted in (a) (land-only). Winter 2025/2026 is circled in red.
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Reposted by str
Mika Rantanen @mikarantane.bsky.social · 23/01/2026
Interestingly, the negative NAO regime appears to be associated with anomalously weak lower stratospheric (150 hPa) westerly winds, rather than with a classical sudden stratospheric warming response at the 10 hPa level.
60° N zonal mean zonal wind for 150 hPa showing daily record-low values for the wind speed.
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Reposted by str
Post Normal Times @barinemiliano.bsky.social · 25/06/2025
🔌💡 IBERIAN BLACKOUT Since April 28th, some commentators have scrambled to present dubious explanations (inertia, ties with 🇫🇷, etc); after last week's gov & TSO reports, specific conclusions can be drawn and unknown aspects highlighted Full essay below ⬇️ #EnergySky open.substack.com/pub/postnorm...
open.substack.com
Iberian Blackout: root-cause & culpability
How the combined effect of an unexpected event, grid operational dynamics, several non-compliances and not-up-to-date regulations led to system failure
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