Austria - Soaring Weather API
High-resolution WRF forecasts across every flying area in Austria. Zell am See, Kössen, Greifenburg, Stubai, Bramberg, Werfenweng, Achensee, Gerlitzen, the Dachstein - thermal strength, MSL cloudbase, soaring height, convergence, full forecast soundings, served as JSON four times a day.
Model specifications
What you get for Austria coverage
All fields available now at 4 km.
Thermal Strength
wstar_ms - thermal updraft velocity in m/s
Soaring Height
hglider_agl_m + hglider_msl_m - usable thermalling height
Cloudbase
cloudbase_agl_ft + cloudbase_msl_m, Cu potential, OD risk
Wind
surface_wind_* plus wind_925_*, wind_850_*, wind_800_*, wind_700_*
Trigger Temperature
thermal_trigger_temp_c - surface temperature at which thermals fire
Day Rating
day_rating - poor, marginal, fair, good, excellent
Corridor Sampling
Weather along a route - time-aware available
Sounding Profile
Full vertical profile - temp, dewpoint, wind
Query Austria forecasts in seconds
Pass region, resolution, and any covered coordinate - the API resolves the nearest model grid point and returns the forecast.
Request
curl "https://api.convek.dev/v1/site?region=at&resolution=4km&lat=46.75&lon=13.18&time=13:00" \-H "Authorization: Bearer cvk_live_your_key_here"
Response
{"valid_date": "2026-05-09","valid_time": "13:00","rasp_model": "at/4km","site": {"wstar_ms": 2.2,"hglider_agl_m": 965,"cloudbase_agl_ft": 3660,"cloudbase_msl_m": 2449,"surface_wind_speed_ms": 4.5,"surface_wind_dir_deg": 211,"day_rating": "fair"}}
About soaring weather in Austria
Austria is the country where the case for a regional model writes itself. The Tirol valleys do not share a morning inversion - launch on Bramberg can be working an hour before launch on Wildkogel forty kilometres away, and a global model averaging across both is wrong about both. Föhn is a synoptic-to-mesoscale interaction that needs real terrain to compute, not a smoothed 13 km surface.
Convergence lines along the main Alpine ridge are exactly the kind of mesoscale feature a 4 km grid resolves cleanly and a coarser model parameterises into mush. Most of what makes Austrian flying interesting only exists at this scale.
Two fields worth flagging for Austria specifically: MSL cloudbase, because launch altitudes range from valley sites at 600 m to mountain take-offs at over 2000 m and the AGL number on its own does not tell you whether you can clear the next ridge; and the day rating, which uses the same scoring function as every other country so 'good over Greifenburg' is directly comparable to 'good over the Long Mynd'. Day-window and sounding labels use Europe/Vienna.
Austria coordinate range
The live at/4km region covers the Austrian Alps from Vorarlberg in the west to the Burgenland in the east. Valid coordinates for queries sit inside this bounding box:
Latitude
45.8° N - 49.6° N
Longitude
8.8° E - 17.9° E
Requests outside this domain return 400 Bad Request with a message explaining the coordinates are outside at coverage. See the coverage overview for other regions.
Start querying Austria soaring data now.
Free tier - 25 queries/day. No credit card required.