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Tuesday 19th November


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Observations from mountain summits

Wednesday 20th November: 09:00 GMT
Cairngorm (1245m)   -1.0C N/A
Aonach Mor (1130m)   -0.1C S   27 gusts 42mph
Cairnwell (933m)   -0.3C S   31 gusts 38mph
Great Dun Fell (N. Pennines) (847m)   0.5C S   33 gusts 44mph
Bealach na ba (Wester Ross) (773m)   1.8C E   18 gusts 34mph


The Mountain Weather Information Service

The Mountain Weather Information Service provides weather forecasts to aid mountain safety for 10 upland regions across the UK.

MWIS forecasts contain detailed and accessible information aimed at both novice and experienced mountain users. We write forecasts largely in the form of warnings; generally when there is little text, the conditions are fairly benign. Where possible we use wording that indicates the impact of the weather on the user, and particularly when there is the possibility of severe conditions, we try to include this eventuality in the forecast as a probability, even when the risk is low.

Forecasts are produced manually using information from a range of forecast models and forecaster knowledge of mountain weather. New forecasts for the next three days are produced by 4:30pm daily, normally earlier in the winter, and amended as necessary.

The production of the Scottish forecasts is fully funded by the Scottish Government through sportscotland.

Sponsoring MWIS forecasts

Sponsorship from individuals and organisations within the mountaineering community also contributes to our website pages, plus England & Wales forecast areas. If you would like to know more about sponsorship, and advertising your business with MWIS, please get in touch.


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Mountaineering Council of Scotland Association of Mountaineering Instructions