Organize current weather evidence, inspect wind variability and terrain effects, and retain the reasons for a site-specific decision.
Record the issue time, valid period, location and altitude represented by each forecast or observation. Review official warnings and the expected evolution through the planned activity and return. Keep missing or conflicting information visible. These calculators use entered observations; they do not supply a live flying forecast.
Record steady wind, gust observations and the direction sector with their measurement periods. Resolve the wind against the site’s actual reference direction, including tailwind and wind from either side. A sector that crosses north must retain that wrap; do not average 350° and 10° as south.
Discuss how local terrain, obstructions, valley flow, fronts, stability and convection may change conditions at launch, aloft and at landing. Avoid thunderstorms, their developing hazards and outflow; no pilot rating makes thunderstorm exposure suitable for paraglider flight. An hourly forecast or a favorable average does not resolve rapidly changing conditions.
For a preflight learning case, distinguish drift at a held heading from the corrected heading needed for a ground track. Consider outdoor cold or heat exposure separately, using weather indices within their stated assumptions. Neither a wind vector nor an apparent temperature determines flight suitability.
Compare the actual conditions and trend with the school or site requirements, equipment instructions, your relevant experience and qualified local advice. Document the reason to proceed with a specific activity, wait, change the plan or stop. Do not substitute a universal gust spread or a calculated score for that assessment.
Agree what changes require a fresh briefing or ending the activity and how communications will work. Afterward, compare recorded conditions with what occurred, note uncertainties and retain the instructor or pilot debrief. Preserve observation time and location when saving wind cases.
Compare component extrema across the full supplied direction sector and speed interval. · Save a revised wind-component case with the changed observations and their timestamps.
Show the ground track produced by a specified heading and steady wind.
Check whether a positive-progress wind-triangle solution exists for the intended track.
Use the NWS cold index only within its temperature and wind domain.
Review the apparent-temperature method without inferring safe exposure time.
Attach the weather debrief to actual completed-flight records.
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Large-scale forecasts and surface observations do not describe every launch, valley, ridge and landing area. Assess local terrain effects and evolving weather together.
Training wind and crosswind constraints belong to the school and site operating plan. This guide does not prescribe one gust spread for all pilots and sites.
Wind chill and heat index describe specific apparent-temperature models. They are separate from turbulence, wing performance and the decision to fly.
A single mean direction can hide a crosswind or tailwind part of the observation.
A cancelled or stopped session is a valid outcome when the conditions do not support the activity.