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.
The most severe weather usually occurs when warm, humid maritime tropical air collides with dry and cold continental polar air. The nature of air masses is determined by three factors: the originating area of the air mass, the age and the modifications that may arise as the air travels away from its starting point across the surface of the earth.