Grand Forks 19z Satellite discussion

Simple water vapor imagery depicts a weak shortwave trough lifting through eastern ND this afternoon, and although this feature is noted in the low, mid, and high level WV imagery, it's much more subtle in appearance in these 3 channels.

Visible imagery shows a boundary dropping south through central MN currently, and there has been an increase in CU along this boundary as it pushes south. This area in far southeast ND into northeast SD and west central MN seems primed for surface based convection within the next couple of hours.

Also noted in the airmass RGB were differences between the the more moisture rich airmass within the warm sector, which appeared with more of a green hue, while the airmass further west across the western Dakotas is drier based on surface observations, and had more of a red hue.

-64BoggsLites