The place to watch storms strengthen.

A tool site focused on one problem: rapid intensification — tropical cyclones gaining 30+ kt of wind in 24 hours. Live rapid-intensification dashboards, SHIPS-RII verification, and marine heatwave monitoring.

Active storms

VanceTropical StormRI earlier

Position: 16.3°N 107.7°W
Max wind: 35 kt
Pressure: 1003 mb
Motion: NW at 7 kt
SHIPS-RII 30 kt / 24 h: 0% · 12:00 UTC run
Marine heatwave: Category 1 (Moderate)

Data as of 2026-10-27 12:00 UTC

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2026 season

Atlantic10 named storms1 hurricane1 major2 RI storms (normal to date 4.2)
Northeast Pacific24 named storms13 hurricanes11 majors11 RI storms (normal to date 6.6)

The full season →

RI episodes, 1979–2025

601

Storms that rapidly intensified

538

Years of best-track data

1979–2025

Marine heatwaves now

of tracked waters · max: Extreme

Explore the RI climatology →