Wave observations from the Aunu’u site just to the east of American Samoa, above, show waves exceeding 12 feet starting late in the day on 22 September and persisting through the weekend into the 25th. The National Weather Service office in Pago Pago issued High Surf Warnings during this eventASZ001>004-251915-Tutuila-Aunuu-Manua-Swains Island-Rose Atoll-705 PM SST Sun Sep 24 2023 ...HIGH SURF... Read More
The National Weather Service forecast office on Guam (at 13.4oN, 144.7oW) is paired with an L/X band satellite receiver that can download data from Polar Orbiting satellites, which data can subsequently be processed by Polar2Grid software to produce useful products. The animation above shows 4 different Himawari-9 Band 13 images... Read More
GOES-West imagery, above, from the CSPP Geosphere site, shows Hawaii in a tradewind regime (direct link to animation). The animation, from 0121 to 0556 UTC on 21 September 2023, shows the steady progression of cloud lines moving east-to-west, with embedded regions of apparent showers that generate outflow boundaries. At 0431 UTC, Sentinel-1A overflew the eastern Hawai’ian... Read More
11 hours of 1-minute Mesoscale Domain Sector GOES-16 (GOES-East) “Red” Visible (0.64 µm) images (above) showed Post-Tropical Cyclone Lee as it approached Atlantic Canada and Maine on 16 September 2023. PTC Lee made landfall in far western Nova Scotia around 2000 UTC, and produced strong winds and heavy rainfall across much of Maine.A longer animation of 5-minute CONUS Sector GOES-16 Air Mass RGB images (below) portrayed the large size... Read More
