Fancy some time on the Lake? ACSPO SSTs show the warmest (and coolest) waters

July 1st, 2020 |

ACSPO Lake Surface Temperatures over Lakes Erie and Ontario, early morning on 01 July 2020 (Click to enlarge)

Advanced Clear-Sky Processing of Oceans (ACSPO) Sea Surface Temperatures (SSTs or, in this case, Lake Surface Temperatures, LSTs) are available via an LDM feed from CIMSS for insertion into AWIPS.  Clear skies over the lower Great Lakes (Erie and Ontario) for the morning overpasses of Suomi NPP (orbit paths, from this site) and NOAA-20 (orbit paths, from this site), toggled above, allow for an accurate depiction of lake surface temperatures.  Warmest Lake Erie temperatures are in the western part of the lake (mid-70s), with low 70s along the southern shore of the lake.  Surface temperatures are in the upper 60s on the Ontario side of the lake, with the exception of warm temperatures in Long Point Bay.

In Lake Ontario, temperatures are warmest over the southwest part of the Lake (almost 70!) and coolest along the north shore (low/mid 60s).  Note that the region that is warmest does have a different signal in the True Color imagery, below, cropped from an experimental CIMSS website (VIIRS Today).

NOAA-20 True Color imagery over western Lake Ontario, 30 June 2020 (click to enlarge)