WeatherBlend

Multi-model forecast blending for Bonehill Rocks, Dartmoor

Temperature skill

Eyeball comparison first — each active blender's temperature trajectory plotted against ERA5 + METAR truth. Rolling quantitative MAE by lead follows, so you can see whether the visual impression holds up under aggregation.

Vs truth

Phase 2b lean (13 features)

Six per-model temperatures, their mean/std/range, and cyclical hour/day-of-year encodings. The original champion.

Temperature vs truth — phase 2b25.3°19.8°14.3°8.8°3.3°-2.3°03-2504-0104-0704-1404-2004-27Time (UTC)Temperature (°C)ERA5 (truth)METAR EGTEBlend +24hBlend +48hBlend +72h

Phase 2c rich (88 features)

Adds per-model dew point, RH, cloud {total/low/mid/high}, wind speed/dir/gusts, surface pressure, plus cross-model aggregates. Challenger.

Temperature vs truth — phase 2c25.3°19.8°14.3°8.8°3.3°-2.3°03-2504-0104-0704-1404-2004-27Time (UTC)Temperature (°C)ERA5 (truth)METAR EGTEBlend +24hBlend +48hBlend +72h

Rolling MAE

No rolling MAE points computed — the window is too short or there's no matching ERA5 truth yet.