2.5-minute Target Sector JMA Himawari-9 Infrared images (above) showed Ragasa as it intensified from a Category 4 Typhoon at 0000 UTC on 21 September 2025 to a Category 5 (140-knot) Super Typhoon at 0600 UTC and then further to a 145-knot Super Typhoon by 1200 UTC (SATCON). There was a... Read More

5-minute CONUS Sector GOES-18 (GOES-West) Infrared images (above) revealed the exposed low-level circulation center (LLCC) of Tropical Storm Kiko as the system continued to weaken north of the Hawaiian island of Oahu, and downgraded to a Post-Tropical Cyclone at 1500 UTC on 10 September 2025. Clusters of deep convection developed north... Read More

1-minute Mesoscale Domain Sector GOES-18 (GOES-West) Visible and Infrared images (above) showed the westward motion of of Hurricane Kiko during an 8.5-hour period as the tropical cyclone was rapidly intensifying (SATCON) from a Category 2 storm at 1500 UTC on 03 September 2025 to a Category 3 storm at 1800 UTC and... Read More

1-minute Mesoscale Domain Sector GOES-19 (GOES-East) Visible and Infrared images (above) showed the WNW motion of the eye of Hurricane Erin during a 7-hour period as the tropical cyclone rapidly intensified from a Category 4  storm at 0950 UTC to a Category 5 storm at 1520 UTC, north of the Leeward Islands on... Read More