GOES-16 Ash RGB images created using Geo2Grid (above) displayed the expansion of 2 volcanic clouds following the eruption of Wolf in the Galápagos Islands on 07 January 2022 — one moving northeastward and dissipating, and the other moving westward. The green shades of the volcanic cloud suggested that it contained fairly... Read More

GOES-17 ABI and GLM imagery (from this NOAA STAR website), above, over the southern Pacific Ocean show a region of potential tropical cyclogenesis to the west of Fiji, near the western boundary of this mapping. This Invest Area has been percolating for much of the week. Despite low values of shear (shown below,... Read More

1-minute Mesoscale Domain Sector GOES-16 (GOES-East) “Red” Visible (0.64 µm) and Day Snow-Fog RGB images (above) displayed NW-to-SE oriented horizontal convective roll cloud features that highlighted areas where blowing snow was reducing surface visibility across southeastern Minnesota and northwestern Iowa during the afternoon hours on 06 January 2022. The visibility dropped to 2 miles at Alberta Lea,... Read More

GOES-16 (GOES-East) Air Mass RGB images (above) showed the signature of a Potential Vorticity (PV) Anomaly — denoted by shades of red to pink within the comma head portion of the storm — which likely aided in enhancing precipitation rates within a midlatitde cyclone (surface analyses) as it moved across the region on... Read More