Outbreaks of rain becoming more showery, and turning increasingly as snow above about 450m, this evening with a few clear spells developing in southwest. Northeasterly gales
|Storm Force Winds||None|
|Severe Chill Effect||Medium|
|Heavy Persistent Rain||None|
|Feels like (°C)||-11||-11||-11||-10||-8||-8||-9||-8|
|Wind speed (mph)||38||31||34||28||22||24||22||19|
|Wind gust (mph)||47||38||41||33||26||28||25||22|
|Feels like (°C)||-8||-7||-8||-6||-5||-5||-5||-5|
|Wind speed (mph)||29||22||23||15||13||15||14||12|
|Wind gust (mph)||39||30||32||20||18||19||19||15|
|Feels like (°C)||-2||-2||-2||-1||1||0||-1||-1|
|Wind speed (mph)||12||8||8||5||5||6||5||4|
|Wind gust (mph)||32||24||23||17||14||16||14||12|
|Feels like (°C)||0||0||0||1||3||2||1||1|
|Wind speed (mph)||14||12||11||9||9||9||7||6|
|Wind gust (mph)||34||26||26||21||18||20||17||14|
Fell Top Conditions on Friday 4 December
Readings from Helvellyn summit at 11:25
Temperature minus 1.4°C Maximum wind speed 29.8mph Wind chill minus 10.8°C Average wind speed 20.2mph Wind direction NNE
Winter arrived in earnest today with around 3 inches of snow down to valley level on the Thirlmere side of Helvellyn this morning. Knee deep drifts of snow were encountered frequently on the way up, burying the path over large areas.
NE winds have scoured the summit plateau, exposing the paths in places, however, these areas are a minority which makes navigation and route finding very difficult, especially without goggles.
No significant cornices were seen (snow overhangs caused by the wind) around corrie rims above Brown Cove/Red Tarn, however, there are areas of unstable snow (windslab) in these locations and on ridge flanks.
The freezing level rose through the day and was at around 600m by midday. The snow below this height was becoming quite wet and any drop in temperature overnight will produce ice on the paths.
Anyone venturing out tomorrow should anticipate very challenging conditions with reduced visibility and severe wind chill. Good navigation skills will be required for safe travel in the high fells.
Warm and waterproof winter clothing including hat and gloves, and equipment including mountaineering boots, ice axe, crampons, map, compass and goggles, and a headtorch are essential.
For the climbers: The turf is largely unfrozen and due to the NW winds we've experienced in the last few days, many of the scarp slopes which several routes finish up have almost no snow cover and are essentially just exposed grass. Please avoid climbing in these locations to avoid damaging the rare arctic/alpine plant species that grow in these locations.
Frosty start to a mostly dry day with sunny spells. Freshening northerly winds. Freezing level 800m
Another largely dry day with sunny spells, perhaps some evening rain or showers in the east. Strong northerly or northwesterly winds. Freezing level 800m rising above summits later.
Patchy overnight rain clearing with sunny spells developing. Winds becoming a fresh northeasterly. Freezing level just above the highest summits.
This forecast contains public sector information licensed under the Open Government Licence.