FORECASTCONTEXT.COM · THE LARGE-SCALE STATE BEHIND THE FORECAST BRIEFINGMOTIONOUTLOOKMETHODSAPI☀ AUTO

FORECAST CONTEXT

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

ERA5 + GFS2.5°DAILY
BriefingStratospherePolar vortex
Tpc_N_10

Polar-cap T 10 hPa

Area-mean temperature 60–90°N at 10 hPa; spikes of 20–40 K accompany SSWs.