PRES - Pressure in millibars

HGHT - Height above sea level in meters

TMPC - Temperature in degrees Celsius

DWPC - Dewpoint in degrees Celsius

RELH - Relative Humidity

DRCT - Wind direction in degrees

SKNT - Wind speed in knots

MIXR - Mixing ratio in grams/kilogram

-9999.00 is a value signifying missing data