HiROv2 nails extremes: within 3% of X-SHiELD on 1-in-a-million wind, rain and pressure events

allen_ai · x · 2026-10-15

Ai2's thread continues with HiROv2's extremes performance: it matches X-SHiELD's distribution within 3% for 1-in-a-million rain, wind and pressure events, while capturing cyclone energy, realistic hurricanes and strong downslope winds. Demo link included, with side-by-side visuals (Santa Ana winds, tropical cyclones) comparing 100 km coarse output against 3 km downscaled views.

Related event: Ai2's HiRO-ACEv2 Simulates Global Extreme Weather at 3km Resolution at 1/300 the Cost(5 posts)→

Original post →

More from Research

Research channel →