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
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
A UPS freight plane crashed on takeoff from UPS’s home base in Louisville, Kentucky on 4 November 2025. The plane was bound for Honolulu, Hawaii, and thus had a significant quantity of fuel on board. Eyewitness videos showed a large fireball as the aircraft hit the ground in an industrial... Read More
5-minute PACUS Sector GOES-18 (GOES-West) Mid-level Water Vapor and Upper-level Water Vapor images (above) displayed orographic waves downwind (southwest) of the Hawaiian Islands on 23 October 2025. With a ridge of high pressure north of Hawai’i (surface analyses), boundary layer flow from the northeast interacted with the topography of the island chain... Read More
