With a heavy rain warning issued for Southern Lakes headwaters today (Thursday September 21) and Friday, Otago Regional Council (ORC) is urging people across the region to take care in and around waterways.

“Streams, rivers and lakes can rise very quickly – and it's always better to be prepared, even if flooding does not eventuate,” ORC duty flood manager Tom Dyer said.

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Metservice has issued a heavy rain warning for Southern Lakes headwaters, from 1am Thursday to 2am Friday. 

People are warned to expect 200mm to 350mm of rain about the main divide, and 100mm to 150mm within 30km farther east. Peak rates are estimated of 15mm to 25mm per hour, especially during thunderstorms.

“This amount of rain is within warning criteria. However, the upper lakes catchments are among the areas ORC staff will keep a close eye on over the next few days,” Tom said.

A heavy rain watch is also in place for the wider Otago region, as forecast totals approach warning criteria.

Initially the rain will be in a north-westerly flow with heavier falls near the main divide, but widespread southerly rain is expected to spread north from late Thursday.

“River flows and lake levels are relatively low and have capacity around the region at the moment, however with this forecast we expect river flows and lake levels will rise and approach early flood warning levels, especially in the upper lakes catchments,” Tom said.



MetService has warned that surface flooding and slips are also possible and driving conditions may be hazardous.

Strong wind gusts could damage trees, powerlines and unsecured structures, and driving may be hazardous, especially for high-sided vehicles and motorcycles.

PHOTO: Supplied