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750' (San Bernardino)

750' (San Bernardino) is a paragliding flying site at 753 m elevation, in the California region of the United States. The launch faces S and SW. This page consolidates multi-model weather forecasts, the GO / CAUTION / NO-GO flyability score, the vertical windgram and the thermal emagram so pilots can plan their flight in one place.

Wind and orientation. 750' (San Bernardino) flies in S and SW winds, meaning the airflow must come head-on into the launch. Any component outside that window triggers CAUTION or NO-GO depending on intensity. The launch is rated safe up to 43 km/h sustained wind, beyond which ParaRidge switches to NO-GO. The hourly forecast table and the vertical windgram both show wind direction and speed at takeoff altitude, hour by hour, for the next five days.

Weather model and forecast. For 750' (San Bernardino), ParaRidge auto-selects the best-available model (HRDPS, GDPS or GFS in North America; AROME, ICON-D2 or ECMWF in Europe), then surfaces hourly forecasts for today and the next four days. The windgram stacks the vertical wind profile of every hour into one chart; the emagram reveals cloud base, thermal ceiling and the instability band — the three pieces of information needed to estimate whether the day is flyable and how long the thermals will last.

How to read the GO / CAUTION / NO-GO verdict. ParaRidge cross-references the forecast wind direction against the launch's orientation window, the wind speed against the safety limit, and the gust speed against the maximum threshold. GO means every check passes; CAUTION that at least one threshold is borderline (you stay pilot in command); NO-GO that the direction is wrong or the wind exceeds the window. The reasons are always spelled out — no opaque score, no magic. At 750' (San Bernardino) as anywhere else, the final go decision remains the pilot's, after local briefing and direct observation.

Current wind at AJX - CSS (station <1 km away): 1 km/h E, gusts 4 km/h — read at 03:32 UTC, data by winds.mobi.

Fly your own decision

Spot info is community-sourced and may be outdated. The weather shown is a numerical model, not real-time observed conditions — actual wind on launch can differ. Landing-zone details (surface, obstacles, access, livestock) must be verified locally before every flight. Always cross-check with local clubs and pilots. ParaRidge is not responsible for any incident.

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ThermalRidgeHike & Fly

750' (San Bernardino)

753 mUnited States›California
—Not rated yet·0 votes
Takeoff

main

753 m · S / SW

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Landing

main

517 m

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The 750' launch (~2500ft MSL) is so named because it is 750ft vertically above the Andy Jackson Airpark LZ (same typical LZ as Marshall). It is a less popular alternative to the Marshall launch but has some key advantages: (1) It is readily accessible from Andy Jackson via the dirt 2N40 forest service road (~10 min, moderate clearance recommended) or a 0.6mi hike on a foottrail (~30min, steep). (2) Being lower elevation, cloud cover is less of an issue than at Marshall. (3) The quick access and quick flights in non-thermic conditions are well suited for beginners (and others) to rack up a large number of flights in a short time frame (such as four flights before noon). (4) On particularly thermic days it is possible for a launch from 750' to gain altitude up to and in excess of Marshall, defeating the need for a shuttle. Hanggliders do not seem to use this launch. The launch is a 50'x80' dirt and gravel patch sloping SSW at the south end of the large pull out. A streamer on a pole gives some indication of wind. The launch area is less forgiving than Marshall (but again suited for beginners). Non-thermic flights are about 3-4min to AJX. Site is maintained by the Crestline Soaring Society. See links below for site protocols and access. 750' (San Bernardino): thermal, ridge soaring, hike & fly site in California, USA. Elevation 753 m.

Forecast · ECMWF

NESW
Takeoff

No flyability data

753 m

Live now · station

Model· fine-mesh → global

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updating…

Which model should I pick?

Fine-mesh models (1–3 km: HRDPS, AROME, ICON-D2, HRRR) resolve terrain and thermals well, but only reach +1 to +2 days. Use them for the day you actually fly.

Coarse-mesh models (10–25 km: GDPS, ARPEGE, ECMWF, GFS) miss valley detail but reach +3 to +10 days. Use them to scout a window 3+ days out, then re-check on a fine-mesh model the day before.

Advanced analysis
Fine mesh — accurate here · ★ recommendedRegional — trendGlobal — big picture

Day · Windgram / Emagram

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