Question

Is an unscheduled observation completed and transmitted when any of the special criteria are observed or sensed? Also will contain all data elements found in a METAR plus additional remarks that elaborate on data in the body of the report. Reports will be prepared and transmitted as soon as possible after the relevant criteria are observed.

Answer 1

An unscheduled observation must be completed and transmitted rapidly when special weather criteria are observed, including both expected and unexpected results, with strict criteria for data collection.

Step-by-step explanation:

The student is asking if an unscheduled observation, such as those reported in special weather statements like SIGMETs or SPECIs, must be completed and transmitted when certain special criteria are observed or sensed. An unscheduled observation is typically more urgent and requires rapid dissemination of data when significant changes in weather conditions are detected that could impact aviation, safety, or critical operations. These observations will include all the standard data elements found in a routine METAR report, along with additional remarks to elaborate on the observations made, if necessary. The criteria for both expected and unexpected results must be strict to ensure the reliability and validity of the observation, although the sense of urgency might be heightened in the event of unexpected results that have immediate safety implications.