Christchurch

Marine Recreational Forecasts - Christchurch

Area Description:

Inshore waters from Lyttelton Harbour to the Waimakariri River mouth.

Situation:

A high pressure system moves eastward today as a low pressure approaches from the Tasman Sea. The low pressure system crosses the North Island on Thursday, while a front moves over the lower South Island. A ridge of high pressure builds over the North Island on Friday and Saturday, while a couple of fronts bring periods of rain to the west of the South Island. The high pressure system moves off the North Island on Sunday, and another ridge extends over the South Island from the Tasman Sea, bringing southwesterlies with it.

Warnings:

Nil for CONWAY

Forecasts:

Wednesday: Variable 5 knots. Westerly 15 knots developing this afternoon, then easing back to variable 5 knots this evening. Sea slight. Mainly fine.

Outlook:

Outlook until midnight Saturday: Thursday: Variable 5 knots, becoming northerly 20 knots early. Easing to northwest 10 knots late. Fine. Friday: Northwest 10 knots, rising to 20 knots early, easing to 10 knots later. Fine. Saturday: Variable 5 knots, becoming northwest 10 knots late. Fine.

Swell:

Marine Coastal Forecasts - Rangitata

Forecast:

Wednesday : Variable 10 knots. Northerly 15 knots developing in the morning. Changing to southerly 20 knots in the afternoon south of Rakaia river, then everywhere in the evening. Sea becoming moderate.

Outlook:

Outlook following 3 days: Thursday: Northerly 10 knots, rising to northeast 20 knots in the morning. Becoming northwest 10 knots in the evening. Friday: Variable 10 knots, becoming northeast 15 knots later. Saturday: Northerly 20 knots, changing southerly 15 knots later.

Marine Coastal Forecasts - Chatham Islands

Forecast:

Wednesday : Variable 10 knots. Sea slight. Long period southwest swell 2 metres. Possible morning fog.

Outlook:

Outlook following 3 days: Thursday: Northwest 10 knots, becoming northeast 20 knots in the afternoon. Friday: Northeast 20 knots, changing westerly 25 knots early, easing to 15 knots later. Sea becoming rough for a time. Saturday: Southwest 15 knots, easing to variable 10 knots early. Becoming northerly 15 knots later. Moderate southwest swell developing.

Marine Coastal Forecasts - Conway

Forecast:

Wednesday : Westerly 15 knots, turning northeast 15 knots late morning, then easing to variable 10 knots in the evening. Sea slight. Long period southwest swell 1 metre.

Outlook:

Outlook following 3 days: Thursday: Northerly 10 knots, rising to northeast 20 knots in the morning. Becoming northwest 10 knots in the evening. Friday: Variable 10 knots. Saturday: Northwest 10 knots, rising to northerly 20 knots early.