VIIRS True-Color Imagery over the Clear Great Lakes
![](https://cimss.ssec.wisc.edu/satellite-blog/wp-content/uploads/sites/5/2023/04/NPPN20TrueColor-20230412_1757_184711L_toggle.gif)
Clear skies over the upper Midwest allowed all 3 JPSS Satellites — Suomi NPP, NOAA-20 and NOAA-21 — to obtain excellent views of the Great Lakes on 11 April 2023. The Great Lakes are largely ice-free (with the exception of a few bays in northern Green Bay, over northern Lake Superior, and over northern Lake Huron). (Here are two images from 7 March for comparison). The CIMSS Direct Broadcast site includes imagery for each of the five Great Lakes (here’s Lake Erie, for example, from NOAA-20 at 1846 UTC on 11 April, via this direct link to this directory, valid for about a week); the animation below shows Suomi NPP, NOAA-20 and NOAA-21 images of the Great Lakes from the CIMSS Direct Broadcast website (link) with 5 images between 1705 and 1911 UTC. Multiple JPSS Satellites means that time animations are easily created.
![](https://cimss.ssec.wisc.edu/satellite-blog/wp-content/uploads/sites/5/2023/04/npp_noaa20_21_viirs_true_color_20230412_1705_to_1911_GreatLakesstepanim.gif)
VIIRS imagery is also available at the VIIRS Today Site and at the CIMSS VIIRS Imagery Viewer. True-Color imagery is also available via an LDM feed from CIMSS.