- Usual forecaster
- David Masson
- Depending on workload, will try to maintain the outlook and soaring foreacasts for most XC-able days
THIS IS A TEMPORARY FORMAT FOR NOW
Last update: 10:30 24/09/2022 (2 days ago)
The cold front has (unexpectedly) cleared away, with the pressure rising a little, making the day more straightforward.
Dir / kts
|Sat:||NNE / 17||18||
Post cold front with pressure building and a northerly airflow.
Some top cover all day and some scraggy cumulus lifting. Soarable by about midday with cumulus base ~3000ft.Getting good for a bit in the afternoon as it dries out (dewpoints dropping to 5C or less) with good cumulus, bases getting to 5000ft and tops to 8000ft and the chance of a light shower.Mid-late afternoon it tends to overdevelop as a trough approaches from the north
Good for 200-300km and possibility of more if it streets nicely.
The wind is ok for a gentle Southdowns ridge day (020/16-18kt), but I think the thermals will tend to dominate the day.
|Sun:||NW / 8||17||
Winds northerly (000/10kt) in the morning, but backing to northwesterly in the afternoon.
A nice soaring day with cumulus base 3000ft+ by late morning and good/shallow cumulus base 4500-5000ft+ in the afternoon.
Much of England has shallow cumulus base 5000ft+ ASL, but it could be blue (to 5000ft+) in places. Good for 200-400km+, possibly 500(?).
|Mon:||NNW / 28||14||
An active cold front goes through in the morning, clearing Lasham by about 9am.
Then cool and windy (28-32kt aloft), gusting 30kt+ on the ground. It dries out through the afternoon with some thermal activity and large cumulus base 3000-4000ft but may overdevelop at times with risk of some showers.
Some local soaring if you can cope with the wind.
|Tue:||WNW / 25||14||Windy, cool, large cumulus bases 4000-4500ft with some showers.|
Cancel what I said yesterday!
There is still some soaring ahead as the high pressure in the middle of the Atlantic keeps a northwesterly flow for another couple of days.
I'd wait and see whether high pressure can remain established or if the Autumnal depressions win out...
I will try to maintain the outlook most of the time, giving a heads-up for possible good days and do a proper forecast for all reasonable XC days.