5-minute CONUS Sector GOES-19 (GOES-East) True Color RGB images created using Geo2Grid (above) showed aircraft glaciation trails drifting east-southeastward over southern Lake Michigan on 25 February 2026. As aircraft ascended/descended through a thin cloud layer composed of supercooled water droplets, additional cooling from wake turbulence (reference) — and/or particles from jet engine exhaust... Read More
5-minute CONUS Sector GOES-19 (GOES-East) Red Visible and Near-Infrared “Snow/Ice” images (above) displayed a cluster of aircraft dissipation trails or “distrails” (in contrast to aircraft condensation trails or contrails) that drifted eastward across Ohio on 24 January 2026.These distrail features were caused by aircraft that were either ascending through or descending through a... Read More
1-minute Mesoscale Domain Sector GOES-19 (GOES-East) Water Vapor and Visible images (above) included plots of Pilot Reports (PIREPs) of Moderate to occasionally Severe turbulence — several of which were in the vicinity of mountain waves over parts of eastern Colorado on 05 January 2026. It was notable that in the area where mountain... Read More
As strong middle-tropospheric west-northwesterly winds continued across Colorado on 19 December 2025, a mountain wave became established over the Front Range. Wind shear associated with this mountain wave resulted in numerous Pilot Reports (PIREPs) of Moderate to Severe turbulence (above).One notable PIREP mentioned 5 seconds of Severe Turbulence at an altitude of... Read More
