BendixKing KAC 503 - Supplemental System FIS - Manual (Page 9)

Rev 1 Oct. 2003
5
FM denotes “from” and 1000 indicates 1000Z. “From” means a signifi-
cant change in prevailing conditions is expected. The described condi-
tions follow this element and supercede all previous forecast conditions.
10. Forecast Wind: 22010KT
See #5 in the UNDERSTANDING METARs section for details.
11. Forecast Visibility: 5SM
See #6 in the UNDERSTANDING METARs section for details.
12. Forecast Weather Phenomenon: -SHRA
See #7 in the UNDERSTANDING METARs section for details.
13. Forecast Sky Conditions: OVC020
See #8 in the UNDERSTANDING METARs section for details.
14. Change in Conditions: BECMG 1315
BECMG indicates “becoming” over the time interval between 1300Z
(13) and 1500Z (15). “Becoming” describes a gradual change in fore-
cast conditions. The described conditions follow this element and
supercede previously reported like elements.
15. Wind Becoming: 20010KT
See #5 in the UNDERSTANDING METARs section for details. This
element may be omitted if no change is expected.
16. Visibility Becoming: P6SM
See #6 in the UNDERSTANDING METARs section for details. This
element may be omitted if no change is expected.
17. Weather Phenomenon Becoming: NSW
NSW indicates “No Significant Weather”. See #7 in the UNDER-
STANDING METARs section for details.
18. Sky Conditions Becoming: SKC
See #8 in the UNDERSTANDING METARs section for details. This
element may be omitted if no change is expected.
19. Change in Conditions: TEMPO 2022
TEMPO indicates “temporary” changes expected as described between
2000Z (20)and 2200Z (22). “Temporary” indicates a temporary fluctua-
tion in conditions, usually lasting less than one hour. The described
conditions follow this element.
20. Low Level Windshear: WS015/30045KT
WS indicates “windshear” not associated with convective activity. 015
indicates the windshear is expected at 1500 feet. AGL Wind is
expected from 300° (300) at 45 knots (45KT).
21. Change in Conditions: PROB40 0407
PROB40 indicates a 40% “probability” of described conditions occurring
between 0400Z (04)and 0700Z (07). The described conditions follow
this element.