sigwx-interpretation-guide.pdf
coverage Global coverage SWM FL100-FL450 EURO MEA/MID ASIA SOUTH NAT Table 2: Vertical extent and domain of WAFC SIGWX forecasts. 2.3. Horizontal extent of WAFC SIGWX forecasts 2.3.1. SWH forecasts cover the entire globe. 2.3.2. It is important to note that SWM forecasts do not cover the entire globe