Final answer:
The abbreviations BR, PO, SQ, +FC, FC, and VC denote different meteorological conditions in weather forecasts, including mist, dust whirls, squalls, tornados or waterspouts, funnel clouds, and nearby phenomena, respectively.
Step-by-step explanation:
The abbreviations BR, PO, SQ, +FC, FC, and VC are all related to weather forecasts, and each represents a different meteorological condition:
- BR: Mist, where visibility is reduced due to suspended water droplets in the air.
- PO: Well-developed Dust/Sand Whirls, which are related to convective activities and may indicate the presence of dust devils or sand whirls.
- SQ: Squalls, characterized by a sudden increase in wind speed that is sustained for at least one minute.
- +FC: Indicates the presence of a Tornado or Waterspout.
- FC: Funnel Cloud, which is a rotating funnel-shaped cloud that does not touch the ground. If it does touch the ground, it becomes a tornado or waterspout (+FC).
- VC: Vicinity, used to indicate that a weather phenomenon is nearby, but not at the airport or location of the weather station.
Understanding these abbreviations can help when reading weather reports or forecasts, providing insight into current or predicted weather conditions.