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FORECAST CONTEXT

DATA THROUGH 2026-10-12 · UPDATED 2026-10-13 11:02 UTC

ERA5 + GFS2.5°DAILY
BriefingWeather regimesWeather regimes
WR_EUR7_AT

Atlantic Trough · EUR7

Projection index I_wr onto the Atlantic Trough mean pattern (Atlantic–European regimes (7, year-round)): standardized area-weighted projection of the normalised anomaly field. — Grams et al. 2017 (Nat. Clim. Change 7, 557); Grams 2026 (WCD 7, 1641)