10-minute JMA Himawari-9 AHI Infrared Window (10.4 µm) images (above) showed an explosive eruption of Mount Ruang in Indonesia on 17 April 2024. Note that a thunderstorm was reported at Menado (station identifier WAMM) from 1400-1430 UTC, due to abundant lightning activity within the dense volcanic umbrella cloud.In the Himawari-9 Infrared Window... Read More

1-minute Mesoscale Domain Sector GOES-18 (GOES-West) “Clean” Infrared Window (10.3 µm) images with an overlay of the Total Precipitable Water derived product (in non-cloudy areas) (above) showed that an axis of moisture was initially in place across all the Samoan Islands — peak TPW values were in excess of 2.0 in (brighter shades of magenta). The axis of... Read More