On 28 November 2025, large regions of standing waves were present throughout the eastern seaboard. When air flows across mountainous regions it gets forced upward by orographic lift. The air cools as it rises due to adiabatic expansion. If the environment is largely stable, the upward motion is inhibited as... Read More
A EUMETSAT Meteosat-10 False Color RGB product from the NOAA/CIMSS Volcanic Cloud Monitoring site (above) showed the signature of a large volcanic cloud following the explosive eruption of Hayli Gubbi in Ethiopia, which began around 0830 UTC on 23 November 2025. Since this False Color RGB product uses the 8.7 µm spectral band (which... Read More
The residents of American Samoa found themselves in the early morning hours of 20 November 2025, as strong maritime convection moved into the region. There is no radar in the area, so satellite observations are critical for operational awareness and nowcasting. The Band 13 infrared view on GOES-18 showed a... Read More
10-minute Full Disk scan GOES-19 (GOES-East) Water Vapor images centered over the southern Great Lakes (above) included contours of Moderate Or Greater (MOG) Turbulence Probability (yellow contour = 40%) and Pilot Reports of Turbulence on 20 November 2025. The yellow 40% MOG contour progressed eastward across the southern Great Lakes and toward the... Read More
