Hurricane Genevieve rapidly intensifies to a Category 4 storm in the East Pacific
1-minute Mesoscale Domain Sector GOES-19 (GOES-Eas)t Visible images (above) showed Hurricane Genevieve as it was rapidly intensifying to become a Category 4 storm on 26 July 2026. Low-altitude mesovorticies were very apparent within the eye — and GLM Flash Points depicted intermittent lightning activity within the eyewall of the hurricane.
The corresponding 1-minute GOES-19 Infrared Window images (below) displayed cloud-top infrared brightness temperatures as cold as -75 to -80 C surrounding the eye.
Genevieve was moving through an environment of favorably-low deep-layer wind shear, and traversing warm water. These factors allowed the hurricane to reach a 135-knot intensity by 0300 UTC on 27 July (ADT | D-MINT | SATCON)
