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Tropical storm One struck Sri Lanka at about 06:00 GMT on 5 January. Data supplied by the US Navy and Air Force Joint Typhoon Warning Center suggest that the point of landfall was near 9.3 N, 81.8 E. One brought 1-minute maximum sustained winds to the region of around 74 km/h (46 mph). Wind gusts in the area may have been considerably higher.
The information above is provided for guidance only and should not be used to make life or death decisions or decisions relating to property. Anyone in the region who is concerned for their personal safety or property should contact their official national weather agency or warning centre for advice.
This alert is provided by Tropical Storm Risk (TSR) which is sponsored by Crawford&Company and University College London (UCL).