WatchEnded

Marine navigation warnings in Finland

🇫🇮 Finland

Onset: 2026-10-07 · First detected: 2026-10-07T06:00:49.306614+00:00 · Last observed: 2026-10-07T06:00:49.306614+00:00 · Ended: 2026-10-07T18:00:52.325324+00:00

Generated at: 2026-10-10T00:00:57.359673+00:00 · The radar runs every 6 hours; data may lag by up to 6 hours.

Plain-language brief

What happened, who is affected, what similar past episodes looked like and what to do — every number links to its source.

What happened

ObservedOn 2026-10-07, our automated monitoring flagged a maritime disruption in Finland — rated watch — the lowest of our three alert levels.[Finntraffic Open Data]
ObservedThe reading behind this alert: active faults at 55 (the full technical detail is in the sections below).[Finntraffic Open Data]

Who is affected

ObservedHotels, travel managers, OTAs and tour operators with guests in Finland during the event window are the most directly affected, together with travellers holding bookings there.[Finntraffic Open Data]

What similar past episodes looked like

ObservedWe are not attaching a historical impact estimate here: our analogues are national, month-long patterns, and this is a localised, point-in-time event in Finland — a country-wide number would not describe it.[estimates.applicability_reason]

What to do now

RecommendationFollow the official sources linked in this report for Finland and reassess bookings before making changes.[Finntraffic Open Data]

Impact

significant_faults	40
active_faults	55
by_fault_type	{"Unlit":11,"Damaged":8,"Destroyed/Missing":13,"Off station":15,"Light unreliable":1,"Limited visibility":4,"Maintenance works":3}

Historical monthly context — not current conditionsAs of: 2026-10 · Disruption index: 9.80 · 0 months older than this event

How this was detected

Rule: marine_aton_faults

Method: deterministic-rule

Thresholds

significant_fault_types	["Damaged","Destroyed/Missing","Limited visibility","Off station"]
abs_min_faults	70
z_min	2
z_floor	40

Observed

significant_faults	40
active_faults	55
by_fault_type	{"Unlit":11,"Damaged":8,"Destroyed/Missing":13,"Off station":15,"Light unreliable":1,"Limited visibility":4,"Maintenance works":3}

Baseline

n_points	416
window_hours	2719.63
mean	35.63
std	1.35

Sources

Finntraffic Open Data snapshotcollected: 2026-10-07T06:00:49.306614+00:00

Corroborating evidence

Independent live sources scanned for disruption-significant entries about this country. Only strict, disclosed rules count — routine entries are never counted.

meteoalarm-eumetnet1 matching entriesSnapshot
Rule: count the event country's Meteoalarm entry only when its max severity is Severe or Extreme with at least one active warning; Moderate/minor warning loads are routine
- FI — 41 — Severe

Sources scanned: auswaertiges-amt-api-de, emsc-seismic, france-diplomatie-travel, gdacs-live, mae-ro-travel, meteoalarm-eumetnet, minbuza-nl-travel, uk-fcdo-advisories, us-state-advisories, viaggia-sicuri-it

Estimates

Estimates are labeled model outputs derived from published historical artifacts — they are context, not forecasts.

Estimate unavailable — not enough historical data for this event type.

For AI agents

Machine-readable JSON for this page:

/data/api/v1/events/ev-marine-warning-fi-20261007-cad159.json

Add as an MCP server (from the repo root):

claude mcp add travel-trends -- .venv/bin/python -m etl.mcp_server

API documentation→