Skip to content

Mt. Si

1⛔ Not flyable

USA · Takeoff 916 m

Forecast next days

2026-08-1830

No recomendable para volar, base de cúmulos ~504 m, viento 16 km/h.

Wind max: 16 km/h
Base: 504 m
CAPE: 0
LI: 4.2
2026-08-1965

Día volable, condiciones decentes, base de cúmulos ~864 m, viento 15 km/h.

Wind max: 15 km/h
Base: 864 m
CAPE: 0
LI: 1.6
2026-08-2065

Día volable, condiciones decentes, base de cúmulos ~1846 m, viento 9 km/h.

Wind max: 9 km/h
Base: 1846 m
CAPE: 0
LI: 1.6
2026-08-2195

Día muy favorable para XC, base de cúmulos ~1354 m, viento 7 km/h.

Wind max: 7 km/h
Base: 1354 m
CAPE: 240
LI: -2.2

Map and thermal hotspots

Sleep nearby

Affiliate links — we earn a commission on bookings, no extra cost for you.

Flight insurance

Affiliate links — we earn a commission on bookings, no extra cost for you.

Access local weather services when flying abroad

Affiliate links — we earn a commission on bookings, no extra cost for you.

Takeoff description

This is one of the classic hike & fly destinations. Basic info: http://mvkazit.blogspot.com/2021/03/mount-si-hike-fly.html

About this site

Mt. Si is a paragliding launch site in USA, near Tanner. Takeoff elevation is 916 meters above sea level. It has a moderate thermal and XC score of 1/100. Check the daily forecast above for current flyability conditions including CAPE, lifted index, cloud base height, and wind speed.