1-minute Mesoscale Domain Sector GOES-16 (GOES-East) Day Cloud Type RGB images (above) displayed narrow bands of mixed phase to glaciated (brighter shades of green to yellow) clouds that produced snow squalls as they moved eastward across western and central Pennsylvania in the wake of a cold frontal passage on 10 March 2024. Periodic lightning activity — denoted... Read More
GOES-16 Mid-level Water Vapor (6.9 µm) images with an overlay of GLM Flash Extent Density (above) showed that there were isolated brief periods of lightning activity over parts of West Virginia / Maryland / Pennsylvania during the nighttime hours, followed by more activity off the south coast of Massachusetts during... Read More
The Storm Prediction Center placed portions of the upper Midwest United States in a marginal risk of severe weather on 8 February 2024 and issued two mesoscale discussion on the thunderstorm development, one at 2053 UTC, one at 2345 UTC. The graphic from the 2053 UTC MD is shown below. The animation above shows clean window infrared imagery overlain by the Level... Read More
As tropical storm Nat moves away from the Samoan Islands and towards Tahiti, another Invest area, 98P, has developed north of the Samoan Islands. The animation above, from the MIMIC Total Precipitable Water site (link), shows a cyclonically-rotating concentration of moisture just north of Samoa, and moving east-southeastward toward Olosega... Read More
