Reading the vortex
Vortex: spin above 2 × 10⁻⁴/s, solid core above 3.2
Storm wind below 3 km: ≥ 126 km/h (68 kn), bright ≥ 162 km/h (87 kn)
Jet stream above 5 km: ≥ 252 km/h (136 kn), bright ≥ 324 km/h (175 kn)
Surface front (approx.): θ 925 hPa = 286 K, blue cold, red warm
box 42° × 20°, 0–9 km, strongly exaggerated · ERA5 hourly