Le weekend 21 November 2009

This is a forecast which includes tomorrow, Friday the 20th.
Temps are up and we are, at long last, seeing T-2 on the soundings, which holds good promise for soaring conditions.

Friday
Surface wind - WNW 10, 5000ft NW 20, 10000ft NWN 30, 15000ft NWN 30, 20000ft WNW 20
Windshear is unusual at 5ms/4km, but a high surface Cat is predicted.
Wave only from 16 000ft upwards
Cloud BLeu
Max 31.6 Dewpoint 6 Trigger 29.6
Expect 2.2 ms - 2. 7 ms to 9 000 ft
T-2 to 5000ft
Boundary layer energy 121 J/kg

Saturday
Surface wind - W 20, 5000ft WNW 20, 10000ft, NW 60, 15000ft WNW 50, 20000ft WNW 30
Windshear is 9ms/4km and the high surface CAT remains as on Friday
Wave light, but from 6000ft upwards
Cloud Bleu
Max 28.2 Dewpoint 9.8 Trigger 26.4
Expect 1.2 ms - 1.7 ms to 6800 ft
T-2 to 4000ft
Boundary layer energy 77 j/kg

Sunday
Surface wind - S 10, 5000ft E 10, 10000ft NW 30, 15000ft NW 40, 20000ft NW 20
High surface cat remains as in the previous days, with moderate cat from 4500ft upwards
windshear remains moderate for FAWC at 11 ms/4km
Wave from 10 000ft upwards
Cloud blue
Max 26.9 Dewpoint 9.9 Trigger 24.9
Expect 1.0 ms - 1.4 ms to 5200 ft
T-2 to 4000ft
Boundary layer energy 78 J/kg

regards
EY