FAA-H-8083-28 24.4.3.13.5 Wind Shift

24.4.3.13.5 Wind Shift

Wind shift is coded in the following format: the remark identifier WSHFT, followed by the time the wind shift began. The contraction FROPA is entered following the time if there is reasonable data to consider the wind shift was the result of a frontal passage. A space is between the remark identifier and the time and, if applicable, between the time and the frontal passage contraction. For example, a remark reporting a wind shift accompanied by a frontal passage that began at 30 minutes past the hour would be coded WSHFT 30 FROPA.