Identify from this list the weather front or air mass boundary that forms in eac
ID: 108906 • Letter: I
Question
Identify from this list the weather front or air mass boundary that forms in each of the cases described below.
A. coastal front
B. cold front
C. warm front
D. dry line
E. upper-level front
19. The warm tropical air mass originating from northern Mexico and the tropical air mass from the Gulf of Mexico meet over Oklahoma.
20. The warm maritime tropical air mass originating from the Gulf of Mexico flows into the U.S. and tries to replace the cool maritime polar air mass that flows from the northeast.
21. The cold heavy air descending from Rossby waves over the United States meets aloft the warm maritime tropical (mT) air mass from the Gulf of Mexico.
22. The boundary between the cold air that spills into the Appalachian Valley and the warm maritime tropical air mass (mT) from the Atlantic Ocean.
23. The cold continental polar air mass (cP) from Canada blows southwards and collides head on with the warm maritime tropical air mass (mT) from southern United States.
Explanation / Answer
B. cold front
C. warm front
D. dry line
Cold fronts may feature narrow bands of thunderstorms and severe weather, and may on occasion be preceded by squall lines or dry lines. Warm fronts are usually preceded by stratiform precipitation and fog. The weather usually clears quickly after a front's passage. Some fronts produce no precipitation and little cloudiness, although there is invariably a wind shift.