About Good to Jump

A real-time weather decision tool for licensed skydivers. Pulls live wind, cloud ceiling, and precipitation forecasts for your home dropzone and checks them against the USPA Basic Safety Requirements (BSR) plus per-DZ criteria.

Who it's for

Licensed skydivers (USPA A through D), instructors, tandem masters, and dropzone operators. The site is calibrated against US sport-parachuting conventions — exit at 14,000 ft AGL, pull at 4,000 ft AGL by default.

This is not a substitute for the manifest desk. Always verify conditions with your DZSO and S&TA before boarding.

How the verdict is computed

Surface wind is checked against the cap for each license tier (BSR student cap = 12 kt; A-license = 16 kt; B and above = 22 kt). DZs can override these via custom criteria.
Gust spread (gust − steady) is checked against the 9 kt de-facto cap. DZs can configure their own.
Cloud ceiling must clear exit altitude by at least 1,000 ft per FAR 105. Active precip grounds the jump.
Canopy shear across the zone from surface to opening altitude flags conditions that look fine at the surface but turn dangerous under canopy.

See the conditions page for the live verdict on your DZ.

Data sources

Winds, cloud, precip: The Weather Company SSDS (GFS + MPAS + FOD).
DZ registry: USPA group member directory, manually augmented with per-DZ criteria.
Aviation data (coming): NOAA Aviation Weather Center (METAR / TAF / PIREP / AIRMET).

Feedback

Built by a USPA-licensed skydiver. Found a bug? Wrong criteria for your DZ? Wishlist? admin@goodtojump.com.