The active eastern Pacific Hurricane season continues, as Lane has formed. Suomi NPP and NOAA-20 overflew the system early on 17 August 2018. The toggle above, from NOAA-20’s VIIRS Instrument, shows both the Day Night Band 0.70 µm visible Image and the 11.45 µm infrared channels. Lack of lunar illumination means that only Earthglow is making clouds visible; a... Read More

GOES-17 Data shown in this post are preliminary and non-operational!A Strong thunderstorm developed over Nebraska on 15 August (read more below), depositing baseball-sized hail in Arthur County. This storm was sampled by a GOES-16 Mesoscale sector, and the 1-minute imagery allowed views of the rotating updraft (Link). The stereoscopic view above, from the GOES-16 and GOES-17... Read More

1-minute Mesoscale Domain Sector GOES-16 (GOES-East) “Red” Visible (0.64 µm) images (above) showed the development of thunderstorms which produced large hail and damaging winds across parts of southwestern South Dakota and western/central Nebraska (SPC Storm Reports) on 15 August 2018. The dominant storm in Nebraska exhibited a well-defined Above Anvil Cirrus Plume (AACP), which is often an... Read More

* GOES-17 images shown here are preliminary and non=operational *A comparison of GOES-15 (GOES-West), GOES-14, GOES-17 and GOES-16 (GOES-East) Shortwave Infrared (3.9 µm) images (above) showed the thermal anomaly or “hot spot” (dark black to red pixels) associated with the Carr Fire in northern California on 11 August 2018. A GOES-16 Mesoscale Domain Sector was providing... Read More