- Wind directionESE (120°) → SSW (200°)
- Ideal speed6–15 mph
- Upper limits≤ 18 mph base · gusts ≤ 22
No documented site guide, USHPA chapter entry, or pilot report with explicit wind numbers could be found for "BOB / Blown Out Butte"; web/club/paraglidingEarth searches returned nothing for this name. Wind window is INFERRED from the paraglidingEarth orientation hint (E, SE, S, SW octants work) for a ~4157 ft MSL launch in the Boise foothills/backcountry of Boise County, west of Idaho City. Best launch is on the SE-to-S facing slope; the ideal arc (120-200) sits in the middle of the working octants, with E (~90) and SW (~225) as marginal cross/edge directions. The name "Blown Out" implies the site is prone to becoming over-strong and turbulent — likely a thermic/convergence site where afternoon valley winds and thermals can quickly exceed safe launch strength, so it blows out by midday. Treat as cross-country/thermal terrain: expect lee-side rotor and mechanical turbulence if wind backs into the N or comes over the back; abandon if base wind exceeds ~18 mph or gusts top ~22 mph. Probable best window is morning thermal cycles or smooth late-evening glass-off rather than midday. Likely P3/intermediate-and-above, possibly unofficial/local access — verify launch, LZ, airspace, and any access restrictions with the Idaho Paragliding club (idahoparagliding.org) or local Boise pilots before flying. All speed and direction values here are estimates, not from a published guide.
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