Le Weekend 9-10 May

Whilst Jim Payne is pushing the edges in the Sparrow Hawk, autumn is fully with us. This coming weekend looks like this:

Saturday has a nice strong inversion from 7000ft up. The airmass does not have the normal turbulence associated with an easterly flow, but strong surface turbulence is indicated - so watch the ridges

Surface wind - 10E, 5000ft 20ENE, 10000ft ENE10, 15000ft SE20, 20000ft SE 20
Wave NA
Cloud NA
Windshear is very low at 2m/s per 4km
Max 20.5C Dewpoint 5.5C Trigger 19.4C
Expect 1.1ms - 1.4ms to ft 5500ft
Cloud Blue, except for a clearly indicated convergence line from the winch release point stretching all the way to Audenberg and then curving in a big loop back to Vic Peak (the orientation of the loop depends on the inclination of the pilot, ie either via Badsberg or McGregor)
BOUNDARY LAYER Energy 43 J/kg
(a new indicator which will be watched by all - also the newly appointed whether sub-committee)

Sunday is very similar, but the surface turbulence is at MAXIMUM Please be careful if you are on the ridges.
Surface wind - E 10, 5000ft NE 20, 10000ft NNE 20, 15000ft NE 20, 20000ft N 20
Windshear still at 2ms per 4km
Wave NA
Cloud BLUE (except for the aforesaid convergence line which remained in place overnite and grew in strength)
Max 21.7C Dewpoint 6.4C Trigger 20.8C
Expect 0.9 ms - 1.4 ms to 5400ftCloud BLEU

Enjoy the convergence line

EY