SIGNIFICANT WEATHER SYMBOLS – 1

* In-flight documentation for flights operating up to FL 100, this symbol refers to “line squall”.

** This symbol does not refer to icing due to precipitation coming into contact with an aircraft which is at a very low temperature.

NOTE: Height indications between which phenomena are expected, top above base, as per chart legend.

SIGNIFICANT WEATHER – LOW CHARTS (BELOW FL180)

Scalloped lines = Used to demarcate significant cloud boundaries

X           = position of pressure centres given in hPa
XXX
XXX         = Indicates cloud base or tops which are outside the parameters of specific SIG WX charts

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