OCR Text |
Show Know The Weather How is a stationary front formed? What causes most of them in fall and winter. A STATIONARY front usually results from the movement move-ment of a cold air mass into a mass of warmer air. Instead of forcing a passage and breaking through, sometimes the cold front's winds blow parallel to the juncture of the two air masses. The cold air mass thus stands still as far as forward movement is concerned. The warm air mass sends its winds parallel to the juncture line (the stationary front), but in exactly exact-ly the opposite direction of those of the cold air mass. |