WEATHERDUCK
WEATHER DUCK

HISTORICAL CLOUD-INVERSION EVIDENCE

62 historical cloud-inversion replays.

Today's production blob geometry applied to retained historical model inputs—with strong matches, weaker signals and misses kept together.

The purple point marks the observed location. Blue means Very likely, green Likely and amber Possible.

These 62 historical cloud-inversion replays use valid-time model inputs. They are not forecasts issued before every event and not an overall accuracy rate.

Important limitation: historical daily scores cannot prove the live email rule that requires two consecutive forecast updates. The complete forecast-proof reports are kept separately.

REPLAY GROUP · 26 EVENTS

Very likely direct matches

26 events where the observation point sits inside a Very likely production-geometry blob in this historical replay.

Historical cloud inversion replay map for Simonside / Rothbury Common, Northumberland on 24 April 2026, with a purple location marker

Simonside / Rothbury Common, Northumberland

24 April 2026 · Very likely direct match

Historical cloud inversion replay map for Lairig Ghru, Cairngorms on 28 December 2025, with a purple location marker

Lairig Ghru, Cairngorms

28 December 2025 · Very likely direct match · observation confidence 10/10

View original evidence source ↗

Historical cloud inversion replay map for Glas Maol and Creag Leacach, Glenshee on 25 December 2025, with a purple location marker

Glas Maol and Creag Leacach, Glenshee

25 December 2025 · Very likely direct match · observation confidence 10/10

View Walkhighlands report ↗

Historical cloud inversion replay map for The Cobbler, Arrochar Alps on 14 October 2025, with a purple location marker

The Cobbler, Arrochar Alps

14 October 2025 · Very likely direct match · observation confidence 10/10

View Walkhighlands report ↗

Historical cloud inversion replay map for Snowdonia / Eryri on 14 October 2025, with a purple location marker

Snowdonia / Eryri

14 October 2025 · Very likely direct match · observation confidence 10/10

View Facebook observation ↗

Historical cloud inversion replay map for Lake District - Carl Side and Skiddaw on 14 October 2025, with a purple location marker

Lake District – Carl Side and Skiddaw

14 October 2025 · Very likely direct match · observation confidence 8/10

Historical cloud inversion replay map for Helvellyn summit on 14 October 2025, with a purple location marker

Helvellyn summit

14 October 2025 · Very likely direct match · observation confidence 10/10

View Facebook observation ↗

Historical cloud inversion replay map for Beinn an Dothaidh, Bridge of Orchy on 14 October 2025, with a purple location marker

Beinn an Dothaidh, Bridge of Orchy

14 October 2025 · Very likely direct match · observation confidence 10/10

View original evidence source ↗

Historical cloud inversion replay map for Beinn Bhuidhe, Glen Fyne on 14 October 2025, with a purple location marker

Beinn Bhuidhe, Glen Fyne

14 October 2025 · Very likely direct match · observation confidence 10/10

View Walkhighlands report ↗

Historical cloud inversion replay map for Sgurr Mor & Eastern Fannaichs on 13 October 2025, with a purple location marker

Sgurr Mor & Eastern Fannaichs

13 October 2025 · Very likely direct match · observation confidence 10/10

View Walkhighlands report ↗

Historical cloud inversion replay map for Bidean nam Bian, Glencoe on 13 October 2025, with a purple location marker

Bidean nam Bian, Glencoe

13 October 2025 · Very likely direct match · observation confidence 10/10

View Walkhighlands report ↗

Historical cloud inversion replay map for Ben More & Stob Binnein on 13 October 2025, with a purple location marker

Ben More & Stob Binnein

13 October 2025 · Very likely direct match · observation confidence 9/10

View Walkhighlands report ↗

Historical cloud inversion replay map for Pen y Fan, Bannau Brycheiniog on 12 October 2025, with a purple location marker

Pen y Fan, Bannau Brycheiniog

12 October 2025 · Very likely direct match · observation confidence 8/10

View Facebook observation ↗

Historical cloud inversion replay map for Lake District - Skiddaw on 12 October 2025, with a purple location marker

Lake District – Skiddaw

12 October 2025 · Very likely direct match · observation confidence 10/10

Historical cloud inversion replay map for Garbh Bheinn, Loch Leven on 12 October 2025, with a purple location marker

Garbh Bheinn, Loch Leven

12 October 2025 · Very likely direct match · observation confidence 9/10

View Walkhighlands report ↗

Historical cloud inversion replay map for Ben Lawers and Beinn Ghlas on 12 October 2025, with a purple location marker

Ben Lawers and Beinn Ghlas

12 October 2025 · Very likely direct match · observation confidence 9/10

View Walkhighlands report ↗

Historical cloud inversion replay map for Y Garn and Elidir Fawr, Eryri on 11 October 2025, with a purple location marker

Y Garn and Elidir Fawr, Eryri

11 October 2025 · Very likely direct match · observation confidence 10/10

View Walkhighlands report ↗

Historical cloud inversion replay map for Helvellyn / Red Tarn, Lake District on 15 January 2025, with a purple location marker

Helvellyn / Red Tarn, Lake District

15 January 2025 · Very likely direct match · observation confidence 8/10

View Lake District Weatherline ↗

Historical cloud inversion replay map for Helvellyn summit on 27 December 2024, with a purple location marker

Helvellyn summit

27 December 2024 · Very likely direct match · observation confidence 9/10

Historical cloud inversion replay map for Aonach Eagach, Glen Coe on 11 December 2024, with a purple location marker

Aonach Eagach, Glen Coe

11 December 2024 · Very likely direct match · observation confidence 10/10

View original evidence source ↗

Historical cloud inversion replay map for North Lakes / Blencathra area on 5 November 2024, with a purple location marker

North Lakes / Blencathra area

5 November 2024 · Very likely direct match · observation confidence 6/10

View original evidence source ↗

Historical cloud inversion replay map for Grey Corries, Lochaber on 3 November 2024, with a purple location marker

Grey Corries, Lochaber

3 November 2024 · Very likely direct match · observation confidence 10/10

View original evidence source ↗

Historical cloud inversion replay map for Gleouraich and Spidean Mialach, Loch Quoich on 3 November 2024, with a purple location marker

Gleouraich and Spidean Mialach, Loch Quoich

3 November 2024 · Very likely direct match · observation confidence 10/10

View Walkhighlands report ↗

Historical cloud inversion replay map for Beinn a' Ghlo on 3 November 2024, with a purple location marker

Beinn a' Ghlo

3 November 2024 · Very likely direct match · observation confidence 7/10

View Walkhighlands report ↗

Historical cloud inversion replay map for Welsh 3000ers - Elidir Fawr, Crib Goch, Carnedd Ugain, Eryri on 31 October 2024, with a purple location marker

Welsh 3000ers – Elidir Fawr, Crib Goch, Carnedd Ugain, Eryri

31 October 2024 · Very likely direct match · observation confidence 9/10

View original evidence source ↗

Historical cloud inversion replay map for Moel Siabod / Ogwen valley, Eryri on 30 October 2024, with a purple location marker

Moel Siabod / Ogwen valley, Eryri

30 October 2024 · Very likely direct match · observation confidence 9/10

View original evidence source ↗

REPLAY GROUP · 17 EVENTS

Likely direct matches

17 events where the observation point sits inside a Likely production-geometry blob.

Historical cloud inversion replay map for Ben Lawers, Killin area on 27 December 2025, with a purple location marker

Ben Lawers, Killin area

27 December 2025 · Likely direct match · observation confidence 10/10

View Facebook observation ↗

Historical cloud inversion replay map for Carnedd Llewelyn / Carnedd Dafydd, Eryri on 16 October 2025, with a purple location marker

Carnedd Llewelyn / Carnedd Dafydd, Eryri

16 October 2025 · Likely direct match · observation confidence 10/10

View original evidence source ↗

Historical cloud inversion replay map for Snowdon / Yr Wyddfa on 15 October 2025, with a purple location marker

Snowdon / Yr Wyddfa

15 October 2025 · Likely direct match · observation confidence 10/10

View Facebook observation ↗

Historical cloud inversion replay map for Pen y Fan, Bannau Brycheiniog on 14 October 2025, with a purple location marker

Pen y Fan, Bannau Brycheiniog

14 October 2025 · Likely direct match · observation confidence 8/10

Historical cloud inversion replay map for Mayar and Driesh, Glen Clova on 14 October 2025, with a purple location marker

Mayar and Driesh, Glen Clova

14 October 2025 · Likely direct match · observation confidence 9/10

View Walkhighlands report ↗

Historical cloud inversion replay map for Grey Corries, Lochaber on 14 October 2025, with a purple location marker

Grey Corries, Lochaber

14 October 2025 · Likely direct match · observation confidence 10/10

View Walkhighlands report ↗

Historical cloud inversion replay map for Glen Coe on 13 October 2025, with a purple location marker

Glen Coe

13 October 2025 · Likely direct match · observation confidence 10/10

View original evidence source ↗

Historical cloud inversion replay map for Ben Lawers, Killin area on 19 August 2025, with a purple location marker

Ben Lawers, Killin area

19 August 2025 · Likely direct match · observation confidence 10/10

View Walkhighlands report ↗

Historical cloud inversion replay map for Fisherfield / Beinn a' Chlaidheimh, An Teallach view on 16 August 2025, with a purple location marker

Fisherfield / Beinn a' Chlaidheimh, An Teallach view

16 August 2025 · Likely direct match · observation confidence 7/10

View Walkhighlands report ↗

Historical cloud inversion replay map for Moel y Gamelin / Vale of Llangollen on 27 December 2024, with a purple location marker

Moel y Gamelin / Vale of Llangollen

27 December 2024 · Likely direct match · observation confidence 5/10

View original evidence source ↗

Historical cloud inversion replay map for Helvellyn summit on 26 December 2024, with a purple location marker

Helvellyn summit

26 December 2024 · Likely direct match · observation confidence 7/10

Historical cloud inversion replay map for Ben More looking to Ben Lawers / Loch Tay on 9 December 2024, with a purple location marker

Ben More looking to Ben Lawers / Loch Tay

9 December 2024 · Likely direct match · observation confidence 5/10

View original evidence source ↗

Historical cloud inversion replay map for Crinkle Crags, Lake District on 9 November 2024, with a purple location marker

Crinkle Crags, Lake District

9 November 2024 · Likely direct match · observation confidence 10/10

View original evidence source ↗

Historical cloud inversion replay map for Fairfield, Lake District on 1 November 2024, with a purple location marker

Fairfield, Lake District

1 November 2024 · Likely direct match · observation confidence 9/10

View original evidence source ↗

Historical cloud inversion replay map for Rannoch Moor on 21 September 2024, with a purple location marker

Rannoch Moor

21 September 2024 · Likely direct match · observation confidence 10/10

View original evidence source ↗

Historical cloud inversion replay map for Loch Mullardoch, Glen Cannich on 20 September 2024, with a purple location marker

Loch Mullardoch, Glen Cannich

20 September 2024 · Likely direct match · observation confidence 10/10

View Walkhighlands report ↗

Historical cloud inversion replay map for West Lomond, Fife on 19 September 2024, with a purple location marker

West Lomond, Fife

19 September 2024 · Likely direct match · observation confidence 5/10

View Walkhighlands report ↗

REPLAY GROUP · 13 EVENTS

Possible direct matches

13 events where the observation point sits inside a Possible production-geometry blob.

Historical cloud inversion replay map for Y Garn, Glyderau, Eryri on 29 December 2025, with a purple location marker

Y Garn, Glyderau, Eryri

29 December 2025 · Possible direct match · observation confidence 10/10

View original evidence source ↗

Historical cloud inversion replay map for The Roaches, Staffordshire on 27 December 2024, with a purple location marker

The Roaches, Staffordshire

27 December 2024 · Possible direct match · observation confidence 10/10

View original evidence source ↗

Historical cloud inversion replay map for Haytor, Dartmoor on 25 December 2024, with a purple location marker

Haytor, Dartmoor

25 December 2024 · Possible direct match

View Facebook observation ↗

Historical cloud inversion replay map for Striding Edge, Helvellyn on 11 December 2024, with a purple location marker

Striding Edge, Helvellyn

11 December 2024 · Possible direct match · observation confidence 10/10

View original evidence source ↗

Historical cloud inversion replay map for Helvellyn summit on 11 December 2024, with a purple location marker

Helvellyn summit

11 December 2024 · Possible direct match · observation confidence 8/10

View Weatherline and Facebook ↗

Historical cloud inversion replay map for Blencathra, Lake District on 11 December 2024, with a purple location marker

Blencathra, Lake District

11 December 2024 · Possible direct match · observation confidence 10/10

View original evidence source ↗

Historical cloud inversion replay map for Meall nan Tarmachan, Killin on 8 November 2024, with a purple location marker

Meall nan Tarmachan, Killin

8 November 2024 · Possible direct match · observation confidence 10/10

View Walkhighlands report ↗

Historical cloud inversion replay map for Helvellyn summit on 8 November 2024, with a purple location marker

Helvellyn summit

8 November 2024 · Possible direct match · observation confidence 8/10

Historical cloud inversion replay map for Great Gable, Lake District on 8 November 2024, with a purple location marker

Great Gable, Lake District

8 November 2024 · Possible direct match · observation confidence 10/10

View original evidence source ↗

Historical cloud inversion replay map for Crib Goch, Eryri on 8 November 2024, with a purple location marker

Crib Goch, Eryri

8 November 2024 · Possible direct match · observation confidence 9/10

View original evidence source ↗

Historical cloud inversion replay map for Blencathra, Lake District on 8 November 2024, with a purple location marker

Blencathra, Lake District

8 November 2024 · Possible direct match · observation confidence 8/10

View original evidence source ↗

Historical cloud inversion replay map for Ben More & Stob Binnein, Crianlarich on 8 November 2024, with a purple location marker

Ben More & Stob Binnein, Crianlarich

8 November 2024 · Possible direct match · observation confidence 9/10

View original evidence source ↗

Historical cloud inversion replay map for Cairngorms (Aviemore area) on 21 September 2024, with a purple location marker

Cairngorms (Aviemore area)

21 September 2024 · Possible direct match · observation confidence 4/10

REPLAY GROUP · 6 EVENTS

No direct match in this replay

6 geographically varied, high-confidence observations where today's production geometry does not place a blob over the observation point. They remain visible because misses and limitations belong in an honest evidence record.

Historical cloud inversion replay map for Striding Edge, Helvellyn on 8 January 2026, with a purple location marker

Striding Edge, Helvellyn

8 January 2026 · No direct match · observation confidence 10/10

View original evidence source ↗

Historical cloud inversion replay map for Gulvain, Locheil on 14 May 2025, with a purple location marker

Gulvain, Locheil

14 May 2025 · No direct match · observation confidence 10/10

View Walkhighlands report ↗

Historical cloud inversion replay map for Lose Hill, Peak District on 5 February 2025, with a purple location marker

Lose Hill, Peak District

5 February 2025 · No direct match · observation confidence 10/10

View original evidence source ↗

Historical cloud inversion replay map for Mam Sodhail, Glen Affric on 10 November 2024, with a purple location marker

Mam Sodhail, Glen Affric

10 November 2024 · No direct match · observation confidence 10/10

View Walkhighlands report ↗

Historical cloud inversion replay map for Beinn Narnain, Arrochar on 23 September 2024, with a purple location marker

Beinn Narnain, Arrochar

23 September 2024 · No direct match · observation confidence 10/10

View Walkhighlands report ↗

Historical cloud inversion replay map for Mither Tap, Bennachie, Aberdeenshire on 7 September 2024, with a purple location marker

Mither Tap, Bennachie, Aberdeenshire

7 September 2024 · No direct match · observation confidence 10/10

View Walkhighlands report ↗

READ THE RECORD FAIRLY

How to read this archive

The observation date and source describe what was seen. Each map applies the current WeatherDuck blob formula and the live 25 km area geometry to the retained historical valid-time input. A direct match means the location point falls inside that coloured area; it does not prove every nearby summit or valley experienced the same conditions.

Possible, Likely and Very likely are model bands, not calibrated percentage probabilities. No-direct-match events remain in the archive so the record does not hide weaker outcomes.