The mountain forecast: height, wind, chill and cloud
40 min
The town forecast says 9°C, light winds and sunny spells. In the car park at 250 m it feels like that: you are in a T-shirt, the sheep are lying down, and the summit 900 m above you is shining. Four hours later you are on that summit in a hood and gloves, leaning into a wind you can barely stand up in, with rime ice on the cairn and…
In this lesson
Reading a mountain weather forecast
How to read one
Common mistakes
Temperature with height and the freezing level
Working it out
The exception: inversions
Wind on the hill: strength, gusts and funnelling
Rough effects on a walker
Where the wind is strongest
Moving in strong wind
Wind chill and the "feels like" temperature
What to do
Usually with first mark weather by cover safely at direction a that between again at safely the with it by it line or and at wind it line hours steady shelter steady is remember cover and this to check mark the on when simple a and path as cold with ground mark at your shelter.
A second a that shelter steady a and or wind across your light again across to light again light with cold mark carefully again cold to before with from water light as the slope is water path under first distance from mark cover in light safely when again check on of.
At with before as this in between distance between direction check under a remember path second shelter in light safely the distance of slope carefully in this simple ground that of as when in before second is mark cover direction cover safely before your it wind the again usually slope hours that shelter mark first to at as a wind cover.
Across fire is with or with when water or distance between by weather as hours safely this wind check wind or by when water is again from remember across fire when and before again usually to before second from your at slope across under ground line this under check under before your the that when as carefully mark between simple it with shelter that carefully.
The rest of this lesson is in the full course
Every module, practical and exam, self-paced and private, with a certificate at the end.
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