1 All Columns to the Left of the Anchor Cell are frozen. 2  On the View tab, in the Window group, click Freeze Panes, Freeze Panes. 3  Now all rows above Row 2 are frozen and all columns to the left of Column B are frozen.
Cold fronts produce most of the severe weather most of the time. This is because the cold air undertakes the warm moist air ahead of the front.
Weather systems aloft - the Polar Front and the jet stream. Waves on the jet stream - upper ridges and troughs. Positive vorticity - a driver of severe weather - and the jet stream. Wind-shear - a driver of severe weather - and the jet stream.