Vierwaldstättersee area 2020-Aug-12-Wed at 14:39:55Z. custom forecast (GFS 0.5°) by soaringmeteo.ch, © 2016. Midday forecast with data 06Z.

Date		2020-Aug-13-Thu				2020-Aug-14-Fri				2020-Aug-15-Sat				2020-Aug-16-Sun				2020-Aug-17-Mon				2020-Aug-18-Tue				2020-Aug-19-Wed
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 %		37	68	33		35	41	22		61	82	75		56	65	57		30	31	32		0	33	35		49	63	78
General wind kmh		NNE 8	N 9	NNW 5		N 6	N 6	NW 6		NNE 4	N 5	N 6		NW 2	WNW 7	N 7		NNW 5	NE 6	ENE 3		WNW 16	SSE 5	WNW 5		NE 3	NE 3	NE 4
Top wind kmh		NE 7	SE 1	N 8		NNE 3	ENE 3	NW 5		NNE 1	SSW 6	SSW 3		WSW 9	WSW 13	NNE 2		NW 5	NNW 4	N 3		W 28	SW 10	WSW 18		SW 1	S 12	SSW 10
Cloud cover %		86	60	82		100	100	93		0	0	29		0	0	67		100	100	100		100	91	33		75	54	5
Rain mm		1	2	4		0	1	3		0	0	0		0	0	0		2	6	4		2	5	0		0	0	0
Sea level Pressure hPa		1015	1014	1014		1015	1014	1014		1015	1012	1011		1011	1010	1009		1012	1011	1010		1014	1013	1010		1009	1005	1004
Isotherm 0°C m		3900	3900	3900		3800	3900	3900		3800	4000	4000		3900	4000	4000		3800	3800	3800		3400	3300	3600		3800	3800	3900
Storm risk		Very high risk.				Very high risk.				High risk.				High risk.				Very high risk.				No or very low risk.				Low risk.

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