Sally was upgraded to a Hurricane at 1600 UTC on 14 September. (Link)Hurricane warning have been issued along the central Gulf Coast on 14 September as strengthening tropical storm Sally approached.  MIMIC estimates of total precipitable water, above, for the 24 hours ending at 11 UTC on 14 September show the moist airmass in the... Read More

Hurricane Gilbert (1988) is one of the most intense Atlantic-basin hurricane on record. NOAA’s GOES-7 offer both visible and infrared views of the storm. These images are from the VISSR mode. What is unique about the view from the geostationary orbit, is that it allows both large / synoptic scale... Read More

1-minute Mesoscale Domain Sector GOES-17 (GOES-West) “Red” Visible (0.64 µm), Shortwave Infrared (3.9 µm), Fire Temperature Red-Green-Blue (RGB) + GLM Flash Extent Density (FED) and “Clean” Infrared Window (10.35 µm) images (above) showed the formation of a pyrocumulonimbus (pyroCb) cloud over the Bear Fire (part of the North Complex) in Northern California on 09 September 2020. The coldest cloud-top infrared brightness temperatures were -61.4ºC; no GLM-detected lightning activity was seen with this... Read More

1-minute Mesoscale Domain Sector GOES-17 (GOES-West) “Red” Visible (0.64 µm), GOES-17 Shortwave Infrared (3.9 µm), Fire Temperature Red-Green-Blue (RGB) + GLM Flash Extent Density (FED) and “Clean” Infrared Window (10.35 µm) images (above) showed the formation of a pyrocumulonimbus (pyroCb) cloud over the Hopkins Fire in Northern California on 08 September 2020.The vertical extent of the pyroCb cloud tower was even more apparent when viewed in Visible imagery from GOES-16 (GOES-East), displayed... Read More