GOES-16 (GOES-East) “Red” Visible (0.64 µm), Low-level Water Vapor (7.3 µm), Mid-level Water Vapor (6.9 µm) and Upper-level Water Vapor (6.2 µm) images (above) showed the southward propagation of an undular bore across Kansas, Oklahoma and Texas on 10 July 2019. This feature appeared to play a role in convective initiation over the Texas Panhandle —... Read More

1-minute Mesoscale Domain Sector GOES-17 (GOES-West) “Red” Visible (0.64 µm) images (above) showed the development of thunderstorms over the far southern end of the Alaska Panhandle on 27 June 2019. These storms intensified as they moved southeastward toward the Misty Fjords area of Alaska (located east and southeast of Ketchikan PAKT) — and when... Read More

Overlapping 1-minute Mesoscale Domain Sectors provided 30-second interval GOES-16 (GOES-East) “Red” Visible (0.64 µm) images (above) of severe thunderstorms (SPC storm reports) that developed across central Nebraska and northern Kansas along and ahead of an advancing frontal boundary (surface analyses) on 08 June 2019. Robust overshooting tops were very apparent with many of the storms, and a few... Read More

1-minute Mesoscale Domain Sector GOES-16 (GOES-East) “Red” Visible (0.64 µm) images (above) showed a mesoscale convective system (MCS) that produced large hail and damaging winds — including gusts to 85 mph around 2120 UTC — across southern Minnesota on 04 June 2019 (SPC storm reports). Numerous well-defined overshooting tops were seen in the imagery, along with cloud-top gravity waves across the... Read More