easysnowdata.catalog.health.latest_available_day#

easysnowdata.catalog.health.latest_available_day(url_for_day: Callable[[Any], str], *, back: int = 21, skip_today: bool = True) → str[source]#

Walk back day by day until one answers, for archives with no index.

SNODAS publishes one tar per day under a dated path and offers no listing, so “how far behind is it” is a sequence of first-byte GETs.