What does the term "NCD" signify in a TAF forecast?

The term "NCD" in a TAF forecast signifies "No significant clouds detected." This indicates that the forecast does not expect the presence of clouds that would impact flight operations significantly. In aviation weather reporting, understanding the cloud conditions is essential for pilots as it helps in preparing for visual flight rules (VFR) or instrument flight rules (IFR). When "NCD" is included in a TAF, it provides reassurance to pilots that visibility and sky conditions should be favorable during the forecast period, allowing for safer operations without concerns over cloud-related obstructions.