Weaver Bally
📍 California , Trinity County · Nearest city: Weaverville (9 km)
24 XC score / 100 · takeoff at 2122 m · 📍 View on map
Coordinates and external links
40.79790, -123.00300Forecast next days
Updated: 2026-04-21 02:13 UTC · Source: Open-Meteo · Thermal window 10:00–18:00 local time
Not recommended for flying, cloud base ~23 m, wind 20 km/h, precipitation 7.5 mm.
base ~23m · wind 20 km/h · precip 7.5mmNot recommended for flying, cloud base ~55 m, wind 22 km/h, precipitation 3.4 mm.
base ~55m · wind 22 km/h · precip 3.4mmFlyable day, decent conditions, cloud base ~1636 m, wind 5 km/h.
base ~1636m · wind 5 km/hComposite flyability score (CAPE + LI + wind + precip + low clouds). Cross-check with local pilots before flying.
🌬 Daily wind (next days)
Daily summary (10m wind). Full hour × altitude chart is being added progressively.
Takeoff orientations
Green = good orientation · Yellow = possible · Gray = not suitable
Why this site has thermal potential
| Factor | Value | Interpretation |
|---|---|---|
| Hotspot density (5 km) | 0 | Low |
| Avg thermal probability | 0.00 | Based on thousands of aggregated IGC flights |
| Solar orientation | 0.66 | Slope faces south in northern hemisphere |
| Own flight history | 0.00 | Thermals detected in platform IGC tracks |
Takeoff description
Unimproved launches on both sides of the ridge near the fire lookout.
Pilot comments
Due to the glide out to landing areas and the lack of safe bail out LZs any closer, this site requires judgment, skill, and knowledge to fly safely. It is probably best to not fly during high winds for these reasons. The entire area surrounding Weaver Bally is designated wilderness area and there is no road access. XC potential exists but has not been fully explored. Supplemental oxygen may be wise in summer months as mid-day lift may exceed 16,000 feet above sea level.
Nearby sites
Hull Mountain (3) · Table Bluff (Eureka) (2) · Woodrat Mountain (9) · Elk Mountain (20) · The Whaleback (16) · Herd Peak (20)