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Hazard spot

Gulf of Lion: Strong katabatic winds

Gulf of Lion: The mistral drops out of the Rhône valley and reaches full force within hours. The sea turns short and high, and anchored boats drag out of the bay.

Cause
Strong katabatic winds
Main season
October to March
Position
42° 36,0' N 004° 30,0' E
Strong katabatic winds · October to March

On the map

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Gulf of Lion: how the place works

The mistral drops out of the Rhône valley and reaches full force on the water within a few hours. It often holds for three days, sometimes a week, and over the shallow gulf it builds a short, high sea that forecasts routinely underestimate. The most dangerous part is the transition from land to water: close inshore it looks calm.

Gulf of Lion: what breaks there

Anchored boats drag out of the bays, and in the marinas from Port Camargue to Marseille lines part. Anyone out in a mistral collects damage to rig and cover, and returning to harbour with the wind on the beam is the real moment of risk.

Gulf of Lion: what this means for your policy

Check whether your policy pays the cost when you take extra securing measures for a forecast mistral and nothing happens. That is not a given, and it is exactly the case that arises here several times a year.

Read this in full: At anchor the policy is awake

Cruising range

In the calculator this spot falls under EU inland waters

Calculate a premium for this cruising range

Nearby

And what applies right now?

This page shows what always holds here; live official warnings are on the warning map.

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An owner in yellow foul-weather gear makes fast a second mooring line as storm clouds gather

Storm on the way

Lines doubled, head clear.

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