SIGWX (Global)	Today 00Z + ... hours (Update 05Z)
Sig.Weather FL100-450	00	06	12	18	All
Sig.Weather FL250-600	00	06	12	18	All
	All	All	All	All

SIGWX (N-Hemisphere)	Today 00Z + ... hours (Update 05Z)
Sig.Weather FL250-600	00	06	12	18	All