ERA5 Hindcast — 2026-05-18

Reconstructed from ERA5 reanalysis — not a live forecast rep

This page is built after the fact from ERA5 reanalysis: it shows what the weather actually did along the corridor on this date, not a forecast or analog that was issued at the time. The live daily practice reps (with analog matching and convergence tracking) begin 2026-05-28 — see the Daily Analysis overview. Past-month setup context only; pre-race research, frozen into the build (RRS 41).

Reanalysis actuals · Newport→Bermuda corridor · T−32 to the 2026 start · « all hindcast days · live Daily Analysis

What the corridor did — 2026-05-18

At the 37°N Gulf Stream crossing, ERA5 has the day's wind moderate — max 17 kn, gusting 24 kn, dominant WSW, mean sea-level pressure 1025 hPa. Peak corridor wave 1.8 m.

Corridor profile (ERA5 actuals)

waypoint	wind max	gust max	dominant dir	MSLP
Start / coastal	17 kn	21 kn	SW	1021 hPa
Continental shelf	16 kn	19 kn	SW	1023 hPa
Gulf Stream crossing	17 kn	24 kn	WSW	1025 hPa
Post-Stream	8 kn	11 kn	SW	1027 hPa
Bermuda approach	11 kn	14 kn	E	1027 hPa

Wind in knots (10 m), gust = daily max, MSLP = daily mean. Source: ERA5 reanalysis via the Open-Meteo Archive API. Ocean/SST and Gulf Stream wall geometry are observational products, not reconstructed here — see the Gulf Stream pages.