A notable boundary seen over the southern CWA of LBF on GOES 16 Day Cloud Phase Distinction is also evident in the PHS CAPE forecast for 19-21Z over the same area. The evolution of this boundary could be key in determining future convective development later this afternoon/evening.

Day Cloud Phase Distinction 20Z

SFC CAPE PHS for 21Z forecast, top left panel.

Meteorologist David Spritz