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#1. The airmass which originates at sea in high Latitudes is called
#2. The airmass which originates over equatorial region is
#3. If the advancing cold front is colder than the cool air mass of the warm front, the advancing cold from undercuts and lifts both the warm and cool air masses of the warm front. This is
#4. The airmass which originated over land area located in polar region is:
#5. If a warm airmass overtakes a cold air mass, it is called
#6. At warm front
#7. The conditions are always unstable at a
#8. Sometime Line squall about 100-300 km ahead of a
#9. Precipitation occurs over a belt of 30-50 km on both side of front
#10. Cold front moves at _____ the speed of a warm front moves
it’s fast movement causes squall lines to form 200 km ahead of it
#11. Line Squalls occur _____ of cold front
it’s fast movement causes squall lines to form 200 km ahead of
#12. Front are associated with
Because of two different air masses meet each other
#13. CB, Roll-type clouds, SC, AC with embedded CB are associated
#14. The surface of discontinuity between the Polar Ely and the temperate Wly is called
The Polar Front is the boundary between polar and tropical air masses. It extends across the Atlantic and Pacific from 35N to 65N and in the southern hemisphere around 50S.
#15. The air mass which originated from sea area located in lower Lat is
#16. WDs approach India as
An occlusion occurs when the cold front in a depression catches up with or over takes the warm front. An occlusion forms because the cold front normally moves faster than the warm front
WDs belong to extra tropical cyclone family. Over India they are in occluded state and cause warm/cold front type of clouding and weather. They intensify over NW India due to orography and moisture feed from the Arabian sea.
#17. Maximum WDs occur in
WDs belong to extra tropical cyclone family. Over India they are in occluded state and cause warm/cold front type of clouding and weather. They intensify over NW India due to orography and moisture feed from the Arabian sea.
They arrive in winters
#18. Ahead of a warm front the surface wind
#19. On approach of a Warm Front temperature
#20. CI, CS, AS, NS, ST in sequence are associated with the front
#21. During the passage of a Cold Front winds
#22. Visibility is poor in a Warm Front
#23. Fog occurs in Cold Front
After cold front there is fog formation
in case of warm front it’s before
#24. WD is a ______ front
An occlusion occurs when the cold front in a depression catches up with or over takes the warm front. An occlusion forms because the cold front normally moves faster than the warm front
WDs belong to extra tropical cyclone family. Over India they are in occluded state and cause warm/cold front type of clouding and weather. They intensify over NW India due to orography and moisture feed from the Arabian sea.
#25. FZRA and FZFG occur ______ of a warm front
FZRA AND FZFG along the slope in the diagram
#26. Precipitation ceases after the passage of a front
#27. During the approach of a Warm Front wind
#28. A WD with two or more closed isobars, at 2 hPa interval, it is termed as
WDs are lows or troughs which move from W to E, N of 20° N and cause weather.
Whenever the low has two or more closed isobars, at 2 hPa interval, it is termed as Western Depression. The troughs above 500 hPa level are called Troughs in Westerlies.
#29. A WD originate over
These disturbances are noticed as cyclonic circulation/trough in the mid and lower tropospheric levels or as a low pressure area on the surface. They originate over the Mediterranean Sea, Caspian Sea and Black Sea and move eastwards across north India.
#30. Induced lows develop to the _____ of a WD
Induced Low and Induced Cyclonic Circulation
Under the influence of the WD, sometimes a low develops to the south of the system as induced low and sometimes a cyclonic circulation developes to the south of the system as induced cyclonic circulation