Rain lifts lakes but more still needed

Heather McKendrick stands beside a
Heather McKendrick stands beside a depth gauge on the shore of Lake Pukaki yesterday. Photo by Ian McKendrick. </p>
Rainfall in the southern hydroelectricity lake areas is "good news" even though it was not as much as first hoped, Raineffects hydrologist Dave Stewart says.

While the rain eased off in the lake catchments yesterday morning, the day a major power saving campaign was launched, lake levels were still rising - a change from the past two or three months, he said.

It would be today or tomorrow before the full effect of the recent rainfall was known, but it would probably give the system a couple of weeks' respite.

"It's good news, but not as much as we would like."

The power-saving campaign, which was asking people to do things such as turn off lights, heated towel rails and computers when they were not needed, was still required, Mr Stewart said.

"It'll definitely be needed for quite a number of weeks, even if we get more regular rainstorms."

Last night, Lakes Tekapo and Pukaki were showing only slight increases, with Te Anau and Manapouri showing about a .5m overall rise, including the weekend's rainfall.

Wakatipu had risen .2m and was still rising, as was Lake Wanaka. However, due to Contact Energy still taking from Lake Hawea, it had not risen much at all, he said.

The rainfall in Te Anau and Manapouri meant some relief for the Waitaki system.

The hope was now for more rain to continue to recharge the lakes' storage capacity, Mr Stewart said. The forecast was for a return to more normal rainfall levels during the next two to three months.

"We need a good half-dozen rainstorms."


Add a Comment





Local journalism matters - now more than ever

As the Covid-19 pandemic brings the world into uncharted waters, Otago Daily Times reporters and photographers continue to bring you the stories that matter. For more than 158 years our journalists have provided readers with local news you can trust. This is more important now than ever.

As advertising drops off during the pandemic, support from our readers is crucial. You can help us continue to bring you news you can trust by becoming a supporter.

Become a Supporter