SIGNIFICANT HEAVY RAIN FOR THE SOUTH ISLAND WEST COAST AND CANTERBURY HEADWATERS
A cooler day with long fine spells, but also isolated showers.
North Island, cloud increasing, with a few late showers in the north. South Island, cloud increasing, with rain developing in the west, and scattered late rain elsewhere.
Rain for most places, possibly heavy, then mainly fine for the eastern North Island and Nelson, and a few showers elsewhere.
Cloudy periods today. A periof of rain around the middle of tomorrow, then clearing.
Mainly fine today. Scattered rain tomorrow, with northwesterly gales in exposed places, clearing from afternoon.
Rain this evening and overnight, with heavy falls, then clearing tomorrow, but showers return towards evening. Severe northwest gales in Wellington, Wairarapa and Marlborough easing tomorrow morning.
Heavy rain with possible thunderstorms, turning to showers tomorrow morning, then clearing south of Hokitika in the afternoon. Severe westerly gales about Fiordland early tomorrow.
Occasional rain today. Showers tomorrow afternoon and evening, with thunderstorms in the north. Severe northwest gales in exposed places, easing tomorrow morning.
Periods of rain, easing to showers tomorrow afternoon. Severe southwest gales in exposed places tomorrow morning.
Cloudy periods today. Occasional rain tomorrow.
*GALE WARNING IN FORCE* Westerly 25 knots, rising to northwest 35 knots late this afternoon and to 45 knots overnight tonight. Easing to westerly 35 knots late Thursday morning, and to 20 knots Thursday evening. Sea becoming high for a time. Southwest swell west of Hawera to Cape Farewell, rising to 3 metres. Northwest swell 3 metres developing for a time. Poor visibility in rain Thursday morning.
Outlook following 3 days: Westerly 20 knots, dying out Friday. Developing early Saturday northeast 15 knots, rising late Saturday 25 knots but 40 knots in the west with very rough sea. Changing everywhere early Sunday westerly 40 knots. Heavy southwest swell at times. Moderate northwest swell developing Sunday.
Inshore waters from Waitarere to Pukerua Bay and out to Kapiti Island.
A complex trough lies over the South Island today, then crosses the North Island on Thursday, followed by a ridge on Friday. A deep low approaches New Zealand from the west on Saturday and moves over the South Island on Sunday, while the associated front crosses the North Island.
STORM warning for COOK GALE warning for STEPHENS
Gale warning. Wednesday: Northerly 20 knots, rising to northwest 25 knots gusting 35 knots early this afternoon and to 30 knots gusting 40 knots late this afternoon. Sea becoming rough early afternoon. Fair visibility in rain from afternoon. Thursday: Northwest 30 knots gusting 40 knots rising to northerly 35 knots gusting 45 knots early morning, easing to northwest 25 knots gusting 35 knots late morning, then gradually easing to westerly 15 knots by evening. Changing southerly 10 knots overnight. Sea becoming very rough early morning, easing late morning. Poor visibility in morning rain.
Outlook until midnight Sunday: Friday: Southerly 10 knots, dying out early. Northwest 10 knots developing in the afternoon. A few morning showers, then fine. Saturday: Northerly 10 knots rising to 20 knots later. Fine, late cloud. Sunday: Northerly 30 knots changing northwest 30 knots. Period of rain.
Swell forecast to midnight Sunday: Northwest half a metre, rising to 2 metres Thursday, easing to 1 metre Friday and half a metre Saturday, then rising to 3 metres on Sunday.