Blossom Valley
📍 California , San Diego County · Nearest city: Harbison Canyon (6 km)
46 XC score / 100 · takeoff at 458 m · 📍 View on map
Coordinates and external links
32.87660, -116.84800Forecast next days
Updated: 2026-05-02 16:33 UTC · Source: Open-Meteo · Thermal window 10:00–18:00 local time
Not recommended for flying, cloud base ~1227 m, strong wind (27 km/h).
base ~1227m · wind 27 km/hMarginal conditions, cloud base ~1241 m, strong wind (28 km/h), precipitation 0.6 mm.
base ~1241m · wind 28 km/h · precip 0.6mmComposite flyability score (CAPE + LI + wind + precip + low clouds). Cross-check with local pilots before flying.
🌬 Daily wind (next days)
Daily summary (10m wind). Full hour × altitude chart is being added progressively.
Takeoff orientations
Green = good orientation · Yellow = possible · Gray = not suitable
🗓️ Best season to fly (2024 climatology)
Monthly climate score: historical avg of temp, wind, rain and cloud cover. Green = optimal month.
⭐ Best month: Oct (100/100, 28°C, 5mm lluvia) · Worst month: Mar (68/100, 130mm lluvia)
Why this site has thermal potential
| Factor | Value | Interpretation |
|---|---|---|
| Hotspot density (5 km) | 3 | Medium |
| Avg thermal probability | 0.96 | Based on thousands of aggregated IGC flights |
| Solar orientation | 0.25 | Slope faces south in northern hemisphere |
| Own flight history | 0.00 | Thermals detected in platform IGC tracks |
Takeoff description
Hike up (10 to 15 minutes) or High Clearance 4X4 drive up Note: The Blossom LZ is CLOSED until further notice. Effective 5-7-14, the Blossom LZ Landowner will press trespassing charges to all accessing his land. Helix Water Property & Old Riverbed LZs Remain Closed
Rules and notes
http://www.sdhgpa.com/blossom-valley.html Private land with no official permission to fly. The landowners tolerate us, but access is sensitive.
Pilot comments
Sensitive site, contact local pilots first. http://www.sdhgpa.com/sites-guide.html good site intro: https://www.youtube.com/watch?v=o01KkY2DAIw http://www.youtube.com/watch?v=gzArH61vHdA 17.2 MB MPEG-4 (H.264) video (will play with QuickTime 7) of Jerome Daoust launching and top landing, 2001/3/24: http://www.expandingknowledge.com/Jerome/PG/Video/Mine/2001_03_24_CA_BlossomValley_Carbon_Jerome.mp4
Nearby sites
Iron Mountain (34) · Big Black (16) · Otay Mesa (46) · Little Black (42) · Laguna (51) · Fuzz (Closed) (44)