1-minute Mesoscale Domain Sector GOES-19 (GOES-East) daytime True Color RGB images created using Geo2Grid (above) showed blowing dust (shades of tan) — lofted by strong southerly thunderstorm outflow winds with gusts as high as 60-70 mph — as it moved northward across northeastern Illinois and northwestern Indiana (and eventually southern Lake Michigan... Read More
1-minute Mesoscale Domain Sector GOES-19 (GOES-East) Visible (0.64 µm) with an overlay of the FDCA Fire Mask derived product (above) showed the large thermal anomaly associated with a wildfire in the Nopiming Provincial Park (located just west of the Manitoba/Ontario border) as it made a rapid northeastward run of ~20 miles on... Read More
Due to a lack of radar coverage over American Samoa, WSO Pago Pago requested 1-minute Mesoscale Domain Sector coverage over the islands to monitor convective development and the potential for flash flooding. GOES-18 (GOES-West) Clean Infrared Window (10.3 µm) images (above) showed showers and thunderstorms that developed in the general vicinity of the... Read More
1-minute Mesoscale Domain Sector GOES-19 (GOES-East) “Red” Visible (0.64 µm) and “Clean” Infrared Window (10.3 µm) images (above) showed thunderstorms that produced giant hail (as large as 5.00 inches in diameter) and damaging wind gusts (as high as 106 mph) across the Texas Panhandle and North Texas (SPC Storm Reports) on 29 April 2025. The Infrared images revealed pulses of... Read More
