How is heading / windspeed written?
METAR wind is expressed like this:

04011KT indicates the wind is from 040° true (north east) at 11 knots (20 km/h; 13 mph). In the United States, the wind direction must have a 60° or greater variance for variable wind direction to be reported and the wind speed must be greater than 3 knots (5.6 km/h; 3.5 mph).

04011G20KT indicates wind gusts reaching 20 knots.

090V150 indicates the wind direction is varying from 90° true (east) to 150° true (south-southeast).