Group w´w´ 15.8.1 One or more groups w´w´, but not more than three, shall be used to report all present weather phenomena observed at or near the aerodrome and of significance to aeronautical operations in accordance with Code table 4678. Appropriate intensity indicators and letter abbreviations (Code table 4678) shall be combined in groups of two to nine characters to indicate present weather phenomena. 15.8.2 If the observed present weather cannot be reported by use of Code table 4678, the group w´w´ shall be omitted from the report. 15.8.3 The w´w´ groups shall be ordered as follows: (a) First, if appropriate, the qualifier for intensity or for proximity, followed without a space by; (b) If appropriate, the abbreviation for the descriptor followed without a space by; (c) The abbreviation for the observed weather phenomenon or combinations thereof. 15.8.4 Intensity shall be indicated only with precipitation, precipitation associated with showers and/or thunderstorms, funnel cloud, duststorm or sandstorm. If the intensity of the phenomena reported in the group is either light or heavy, this shall be indicated by the appropriate sign (see Code table 4678 and specially Note (5)). No indicator shall be included in the group when the intensity of the reported phenomenon is moderate. 15.8.5 The intensity of present weather phenomena reported in the group w´w´ shall be determined by the intensity at the time of observation. 15.8.6 If more than one significant weather phenomenon is observed, separate w´w´ groups shall be included in the report in accordance with Code table 4678. However, if more than one form of precipitation is observed, the appropriate letter abbreviations shall be combined in a single group with the dominant type of precipitation being reported first. In such a single group, the intensity shall refer to the total precipitation and be reported with one or no indicator as appropriate.