The MetService has put out a warning for Marlborough, to expect heavy rainfall from tomorrow afternoon into Sunday.
Communications meteorologist John Law said winds would also start to pick up on Saturday, and could reach speeds of up to 110kmh, particularly in eastern areas.
The easterly wind would drive the rain into Marlborough, particularly at the Kaikoura Ranges and the sounds, as well as the Nelson Ranges.
One hundred to 150 millimetres of rain was expected to accumulate about the Kaikoura Ranges in the 21 hours from 6pm on Saturday, to 3pm on Sunday, the rain warning said.
Other parts of Marlborough could expect 60mm to 80mm, mainly about the sounds and Richmond Ranges.
Rain intensity was expected to peak during Saturday night and Sunday morning.
Although anticipated winds did not yet meet warning criteria, Marlborough residents could expect a "blustery" weekend, Mr Law said.
Exposed eastern areas were expected to be worst hit, but Blenheim would not escape the wind, with gusts of 90kmh to 100kmh expected, he said.
Cyclone Lusi was expected to reach northern New Zealand about noon tomorrow.
MetService media and communications meteorologist Dan Corbett said it was currently a category 2 tropical cyclone, and despite showing some signs of weakening was still a significant tropical system.
It was travelling about 35kmh and was expected to track across the South Island late Sunday or early Monday before moving out to sea, east of Canterbury.
Large waves and storm surges could be an issue along eastern shores across the country, including in Marlborough on Sunday.
Marlborough Emergency Management are asking residents to be aware that power and travel may be affected so those concerned may need to review travel plans.
Interislander are not reviewing the sailing times as yet and will monitor the situation closer to the weekend but advise people to check on 0800 802 802.
The Harbour Master reminds all Mariners to closely monitor the weather for their area and plan accordingly. Avoid putting to sea in strong winds and heavy seas. Mariners are further reminded to ensure vessels on moorings, at anchor or in the marina are battened down for heavy weather and properly secured.
Before a storm
- Develop a household emergency plan. Assemble and maintain your emergency survival items for your home as well as a portable getaway kit, ie batteries for your radio.
- Prepare your property for high winds and heavy rain. Secure large heavy objects or remove any item which can become a deadly or damaging missile. Check your gutters to ensure they are clear of leaves.
- If farming, know which paddocks are safe to move livestock away from floodwaters and power lines.
River Level and rainfall information can be checked on the Marlborough District Council website.
The Flood Watch website provides up to date easy-to-interpret information about the current state of rivers and rainfall around the Marlborough District. The Flood Watch graphs can help residents to determine if there is likely to be a flood in their area.
- The Marlborough Express
Is the region better served by having multiple events over one weekend or spread out throughout the year?Related story: (See story)