Trying to see how well AllSkyLAP Precipitable Water (upper middle pane) responds to subtle changes in low level moisture. The lower left is Split Window Difference (SWD) and upper left is visible imagery as a sanity check for no cloud cover. Also have airmass RGB (upper right) and differential WV RGB (bottom center) for comparison.

Note some slight darkening over KS possibly associated with some deeper subsidence seen on the diff W/V RGB.