What contraction signifies that haze is present in a weather report?

The contraction that signifies the presence of haze in a weather report is HZ. In aviation weather communications, standard abbreviations are used to convey information concisely and clearly. HZ is specifically designated to represent haze, which can affect visibility conditions but is not as severe as fog or mist.

The other options correspond to different atmospheric conditions. For instance, BR signifies mist, FG indicates fog, and SM represents visibility in statute miles. Understanding these contractions is crucial for pilots and aviation professionals when interpreting weather reports, as they can impact flight safety and operational decisions.