def beaufort(n):
    """Converts windspeed in m/s into Beaufort Scale descriptor."""
    s = ''
    if n < 0.3:
        s = 'calm'
    elif n < 1.6:
        s = 'light air'
    elif n < 3.4:
        s = 'light breeze'
    elif n < 5.5:
        s = 'gentle breeze'
    elif n < 8.0:
        s = 'moderate breeze'
    elif n < 10.8:
        s = 'fresh breeze'
    elif n < 13.9:
        s = 'strong breeze'
    elif n < 17.2:
        s = 'high wind'
    elif n < 20.8:
        s = 'gale'
    elif n < 24.5:
        s = 'strong gale'
    elif n < 28.5:
        s = 'storm'
    elif n < 32.7:
        s = 'violent storm'
    else:
        s = 'hurricane force'
    return s