Sweden's Meteorological and Hydrological Institute, based in Norrköping, publishes meteorological, hydrological, and oceanographic warnings and advisories and offers weekday contact channels for inquiries and data orders.
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www.smhi.se
Public weather and hydrology advisories from national agencies like SMHI provide baseline environmental data that can inform flight planning and operational risk assessment in aviation.
Sweden's Meteorological and Hydrological Institute (SMHI), headquartered in Norrköping, publishes warnings and advisories spanning meteorology, hydrology, and oceanography. The institute can be contacted by phone at +46 11 495 80 00 or by email at smhi@smhi.se on weekdays between 8 a.m. and 4:30 p.m.

SMHI's Customer Services department, reachable at +46 11 495 82 00 or customerservice@smhi.se during the same hours, handles orders for data, statistics, forecasts, publications, and official reports, and connects inquirers with SMHI experts.
AVI-GO, “SMHI Issues Warnings and Advisories for Sweden”. https://ai.avi-go.com/news/ai-news-center/news-briefs/smhi-issues-warnings-and-advisories-for-sweden-4e57298e86151ab0bb75775f17cd96ea
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