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Refer to figure.
The cloud type most applicable to square 1E is:
  • A
    SC
  • B
    CS
  • C
    NS
  • D
    CB

Refer to figures.

The figure depicts a COLD OCCLUSION – the cold air behind the cold front undercuts the less cold air ahead of the warm front, warm front becomes a front aloft. In simple words, the cold front transits into the occlusion (and not the warm front).

CLOUD DISTRIBUTION (please refer to attached figure):

  • Altocumulus AC, likely to form in the warm sector above the cold front => squares: 2A, possibly 1A.
  • Cumulonimbus CB, formed in the warm sector in the wedge between the cold and warm front and extending upwards => squares: 3B, 2B and possibly 1B.
  • Nimbostratus NS, found around and below the warm front where it meets the occlusion line => square 3B
  • Altostratus AS, observed in the warm sector above the warm front => squares: 2C, possibly 1D
  • Cirrostratus CS, in the warm sector above the warm front => squares: 1D and 1E
  • Cirrus CI, in the warm sector above the warm front (at a higher level than CS) => squares: 1D and 1E

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