Useful symbols and Abbreviations
The Beaufort Notation
| clear sky | b | overcast | o |
| partly cloudy | bc | showers | p |
| cloudy | c | squall | q |
| drizzle | d | rain | r |
| fog | f | sleet | rs |
| gale | g | snow | s |
| hail | h | thunder | t |
| lightning | l | thunderstorm | tlr |
| mist | m | haze | z |
Capital letters means “heavy”.
Repeated letters suggest “continuous”.
A slash suggests the passage of time e.g. RR/pr suggests “continuous heavy rain then rain showers”.
Wind arrows
Wind “arrows” may be used on weather charts to show the wind strength and direction. The direction is shown by the direction the arrow is pointing, and the strength by the number of “feathers” on its tail. Each full feather represents 10 knots wind.
