As an anomalously-deep middle-tropospheric low migrated eastward over the Southwest US, severe thunderstorms developed ahead of a surface low and its associated cold front (surface analyses) as they moved from New Mexico into Texas on 13 March 2021 — as shown in 1-minute Mesoscale Domain Sector GOES-16 (GOES-East) “Red” Visible (0.64 µm) (above) and “Clean” Infrared Window (10.35 um) images (below). According... Read More

GOES-16 (GOES-East) Dust RGB and Split Cloud Top Phase (11.2-8.4 µm) images (above) showed signatures of blowing dust — brighter shades of magenta/pink on the Dust RGB and darker shades of blue on the Split Cloud Top Phase images — moving southward across southwestern Texas on 05 March 2021. Winds were not particularly strong... Read More

1-minute Mesoscale Domain Sector GOES-17 (GOES-West) “Red” Visible (0.64 µm) images (above) showed the hazy signature of a plume of re-suspended ash from the 1912 Katmai volcanic eruption. Strong surface winds gusting to 50-55 knots — caused by a strong pressure gradient along the western periphery of a Storm Force low in the Gulf of Alaska (surface analyses)... Read More

GOES-16 (GOES-East) True Color RGB images created using Geo2Grid (above) revealed multiple plumes of blowing dust — which had their sources in drought-stricken portions of New Mexico and the Texas/Oklahoma Panhandles — moving across Texas in the wake of a cold frontal passage on 30 January 2021. Other features of interest included an undular bore... Read More