$WIMWD

Summary
NMEA 0183 standard Wind Direction and Speed, with respect to north.

Syntax
$WIMWD,<1>,<2>,<3>,<4>,<5>,<6>,<7>,<8>*hh<CR><LF>

Fields
<1>    Wind direction, 0.0 to 359.9 degrees True, to the nearest 0.1 degree
<2>    T = True
<3>    Wind direction, 0.0 to 359.9 degrees Magnetic, to the nearest 0.1 degree
<4>    M = Magnetic
<5>    Wind speed, knots, to the nearest 0.1 knot.
<6>    N = Knots
<7>    Wind speed, meters/second, to the nearest 0.1 m/s.
<8>    M = Meters/second