NASA captures atmospheric gravity waves above Hurricane Simon
NASA satellites detected atmospheric gravity waves in the upper atmosphere above Category 4 Hurricane Simon, which passed within 50 km of Mexico's coast on October 11, 2026, with winds up to 250 km/h. Low moonlight let the VIIRS instrument resolve the ripples in airglow.
- Category 4 Hurricane Simon came within 50 km of Mexico's coast on October 11, 2026
- Sustained winds peaked at 250 km/h before weakening to 210 km/h
- VIIRS on Suomi NPP and NOAA-21 imaged gravity waves in the mesosphere
- Low moonlight made the airglow ripples visible to the instrument
Read next
Science