An animation from the CSPP Geosphere site, above (link), shows a quiescent period in/around Samoa and American Samoa. Low clouds (purple and pink) occasionally developed overnight into showers (dark red) that then dissipated.NOAA-20 overflew the Samoan islands at around 1200 UTC on 8 July, as shown in the toggle below... Read More

1-minute Mesoscale Domain Sector GOES-16 (GOES-East) “Red” Visible (0.64 µm) images (above) include time-matched SPC Storm Reports — and showed a large Mesoscale Convective System (MCS) that moved southeastward across the Northern Plains on 05 July 2022. This MCS produced damaging straight-line winds as strong as 99 mph and hail as large as 4.00 inches in South Dakota — in fact, with... Read More

Gridded NUCAPS data, available from NOAA-20 data within AWIPS, can be used to construct cross-sections in AWIPS. The image above includes an editable baseline J-J’ (one of 10 different lines that can be used for data in AWIPS) from Minnesota into Indiana, roughly perpendicular to a line of broken cumulus... Read More

A weak line of showers moved through southern Wisconsin late in the afternoon of 10 June 2022, as depicted in the 2001 UTC toggle above of NEXRAD Composite Reflectivity and GOES-16 Day Cloud Phase Distinction RGB. What satellite-based products could be used to anticipate that line?NOAA-20 orbits over the Midwestern... Read More