Gruyere/Riviera area 2019-Aug-18-Sun at 21:22:41Z. custom forecast (GFS 0.5°) by soaringmeteo.ch, © 2016. Evening forecast with data 12Z.

Date		2019-Aug-19-Mon				2019-Aug-20-Tue				2019-Aug-21-Wed				2019-Aug-22-Thu				2019-Aug-23-Fri				2019-Aug-24-Sat				2019-Aug-25-Sun
Winter (Summer) time		10h (11h)	13h (14h)	16h (17h)		10h (11h)	13h (14h)	16h (17h)		10h (11h)	13h (14h)	16h (17h)		10h (11h)	13h (14h)	16h (17h)		10h (11h)	13h (14h)	16h (17h)		10h (11h)	13h (14h)	16h (17h)		10h (11h)	13h (14h)	16h (17h)
Flyable ? +/-		---	---	---		---	---	---		---	---	---		+++	+++	---		+++	+++	---		---	---	---		+++	+++	---
ThQ %		16	32	29		0	3	4		46	43	31		54	51	37		56	56	59		48	55	66		61	87	55
General wind kmh		WSW 5	WNW 8	NW 7		NNW 14	WNW 7	N 6		NNE 6	N 9	N 8		NNW 5	NNW 8	N 9		WNW 2	NW 6	NW 6		W 1	NW 6	WNW 8		NW 4	NW 6	WNW 12
Top wind kmh		SW 6	W 8	WNW 8		N 19	NNW 7	NNE 9		ENE 5	NE 3	NNE 5		NE 3	N 6	NNE 9		SSE 4	WNW 4	WNW 8		SW 2	W 3	WNW 9		N 3	WSW 4	WNW 10
Cloud cover %		100	100	100		100	100	100		65	71	100		22	26	73		0	0	0		70	84	50		0	0	0
Rain mm		3	5	2		3	8	2		0	0	0		0	0	0		0	0	1		0	0	1		0	0	0
Sea level Pressure hPa		1017	1017	1016		1020	1024	1024		1022	1020	1020		1022	1021	1020		1019	1017	1015		1016	1015	1014		1016	1014	1014
Isotherm 0°C m		3700	3800	3900		3600	3600	3600		4000	4000	4000		4000	4100	4100		4100	4100	4100		3900	4000	4000		3900	4100	4100
Storm risk		High risk.				No or very low risk.				No or very low risk.				No or very low risk.				High risk.				Low risk.				Low risk.

NB: not flyable --- if rainy, too cloudy, too windy and high risk of thunderstorm.