The resources explains that
SWEN is the start for Snowtam. (Ref: Snowtam help ) But many snowtams I found starts with
SWES which I could not find anything about. What is the difference? Can it have other values? Does snowtam always need to start with one of them?
Example Snowtam from Pilotweb
SWES0701 ESSB 12270841 (SNOWTAM 0701 A) ESSB B) 12270841 C) 12 F) 4/4/4 G) 1/1/1 H) 5/5/5 N) G1 R S T Y Y1 Y2 Y3 Y4 Y5 YU YW/4/GOOD R) 1 2 3 4 6 7 EAST NORTH/4/MEDIUM T) RWY 12 BA 60/48/41. RWY 12 COVER 100 PERCENT. APRON SANDED. ICE PATCHES ON APRON.)