Official alerts

Alerts are shown only live, from the issuing authority, never from a stored copy: a stored alert is out of date within hours. Live alerts appear here when the network's feed service answers. In an emergency, call the local emergency number.

score = place match (city 1.0, first-level unit 0.9, country 0.8, international 0.6) × freshness (0.2 + 0.8 × 2^(−age ÷ half-life); half-life 72 h for news, 24 h for alerts, 14 days for notices) × kind of source (1.0 for intergovernmental and standards bodies, down to 0.8 for news and industry; official body 0.95) × completeness (title, date, place) × (1 + log10(1 + votes)). Votes rank, they never hide a checked item.

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