METAR Reports

18004KT: Wind is 180 degrees at 4 knots. The first three digits (180) are the
compass heading (180). The last two #s are the wind speed (04).

Compass headings are always relative to true North in print, not magnetic North.
If it’s in print, it must be true.

OVC007: Sky is overcast at 700 feet. Remember, #s are always in hundreds.

1 1/2SM: Visibility is 1 ½ statute miles (SM).