03
Raw data
Every source behind the numbers on this site
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Check the primary data before you launch — this page is decision support, not a decision.
Critical station source log
Last scheduled fetch for the three sensors that drive the go/no-go call.
Holfuy 1321 (ridge)
Pending next live refresh.
Foothills Park (BLD02)
Pending next live refresh.
Sugarloaf (BTAC2)
Pending next live refresh.
Wind at the ridge
The only numbers that describe launch itself.
Behind the hill & upstream
West flow shows up here before it hits launch.
Soaring forecasts
Will it go up, how high, and when.
- Boulder PG Hill windgram (Fly Marshall 4 km) Today's hour-by-hour lift and wind profile
- RASP Colorado 2.4 km Thermal strength, BL depth, convergence
- RASP 4 km (RMHPA-funded) Multi-day soaring outlook
- RASP wave cross-section Boulder 270 section — wave and rotor
- NOAA Boulder soaring forecast Trigger temp, thermal index, max lift
Soundings & winds aloft
Charts at ~10,000 ft and ~18,000 ft.
The big picture
Why today looks the way it does.