MET.OR.275 World area forecast centre responsibilities

(a)The WAFC shall issue:

(1)gridded global forecasts of:

(i)upper wind;

(ii)upper-air temperature and humidity;

(iii)geopotential altitude of flight levels;

(iv)flight level and temperature of tropopause;

(v)direction, speed and flight level of maximum wind;

(vi)cumulonimbus clouds;

(vii)icing;

(viii)turbulence;

(2)global forecasts of significant weather (SIGWX) phenomena, including volcanic activity and release of radioactive materials.

(b)The WAFC shall ensure that world area forecast system products in digital form are transmitted using binary data communications techniques.