LAMM 2009 - WEATHER FORECAST
By David Braine - BBC Weather
A CHALLENGING
WEATHER FORECAST
Please
bring a selection of heavier garments to the event so that you can
choose appropriate clothing/tent before you start. Please don't
make the same mistakes as in 2004 and come to the LAMM with only
Summer equipment. This present heat wave could so easily lull all
of us into a false sense of security and make us forget how serious
the Scottish Mountains can be, even in Summer.
Updated 10:00 Friday
General Situation for the weekend 6/7th June
Low pressure developing over France will move gradually North through the weekend but remain to the south of Scotland. High pressure over Iceland will remain slow moving and gradually weaken. This leaves the western highlands in a fresh to strong N/NE'ly flow for the weekend with the risk of a few wintry showers over the mountains above 900m.
Friday
A fine but cold start with a few showers developing but they will be isolated and mainly confined to the mountains.
Some of the showers wintry above 800m.
Visibiliy generally very good falling to moderate in any showers. Limited hill fog and mainly in the showers.
Winds N/NE'ly moderate in the glens,increasing to 20-30mph over the mountains with gusts to 40mph on the tops.
Freezing level 1000m
Temperatures 4-11C glens, 0 to +1C above 900m
Saturday
A fine but cold start again with a showers developing over the mountains and becoming generally cloudy. Some of the showers wintry above 900m.
Visibiliy generally very good falling to moderate in any showers. Hill fog developing and mainly in the showers.
Winds N/NE'ly moderate to fresh in the glens,increasing to 30-40mph over the mountains with gusts to 50mph on the tops.
Freezing level 900m
Temperatures 2-10C glens, 0 to +1C above 900m
Sunday
Continuing risk of showers but becoming less heavy and more isolated. Still breezy but the winds moderating.
Freezing level remaining at 800-1000m. Temperatures of +12C glens 0C above 800-900m
Full update on Friday 1800BST
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