The WeatherDuck blog
Verification reports, inversion mornings and the lessons in between. Each report keeps the forecast WeatherDuck saved before dawn next to what was actually photographed.
A Very likely Wales cloud inversion forecast highlighted southern Eryri 21 hours before a cloud sea was photographed from Tyrrau Mawr on Cadair Idris.
A Very likely Wales cloud inversion forecast highlighted southern Eryri 21 hours before a cloud sea was photographed from Tyrrau Mawr on Cadair Idris.
WeatherDuck highlighted a Likely cloud inversion opportunity across Torridon and the Northwest Highlands 42.9 hours before it was photographed from Beinn Liath Mhòr.
WeatherDuck highlighted a Very likely cloud inversion opportunity across Aberdeenshire and the Eastern Highlands about 46 hours before it was photographed from Tap o’ Noth.
A Lake District cloud inversion filled the valleys below Skiddaw on 12 October 2025. See the atmospheric setup, photographs and practical lessons.
Looking for the evidence trail?
Evidence ledger
Every saved forecast checked against what actually happened, with the lead time, the forecast evolution and the limits kept together in each case.
Open the hubAnnual report
More than 13,000 archived mornings scored with today’s forecast formula, to show when and where UK cloud inversions are most likely.
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