Mountain Radio

Latest South Island Weather Forecast

This forecast was transmitted by ZKIB BASE this morning on our 8.30am voice call  to all of our field sets located in the South Island and Stewart Island.

  

Situation Statement

Issued: 12:41am Sunday

A ridge affects northern New Zealand today, while a northwest flow strengthens over the rest of the country ahead of a front approaching from the Tasman Sea. The front moves northwards over southern New Zealand this afternoon and evening then the rest of the country tomorrow, and is followed by a cooler southwest flow.


Short Forecast

Issued: 5:40am Sunday

Valid to: Midnight Sunday

SEVERE WEATHER WARNINGS AND WATCHES FOR HEAVY RAIN AND SEVERE NORTHWEST GALES ARE IN PLACE FOR MOST OF THE SOUTH ISLAND AND PARTS OF CENTRAL NEW ZEALAND.

Nelson, Marlborough and Canterbury

Cloud increasing and rain developing in Canterbury this evening, heavy about the headwaters.

Buller, Westland, Otago, Southland and Fiordland

Heavy rain about Fiordland and Stewart Island, a few showers elsewhere. Heavy rain spreading north today, easing to occasional showers in Fiordland and Southland this evening. Strong gusty northwesterlies about the south and east, becoming severe in exposed places.


Extended Brief Forecast

Issued: 11:32pm Saturday

Monday

South Island. Rain in the north with possibly heavy falls, easing to a few showers. Scattered showers elsewhere easing. Becoming fine in the west.

Tuesday

Showers in the far north, otherwise mainly fine. However, isolated showers about the east coasts and Buller, gradually clearing.

Wednesday

Occasional showers north of Auckland. Mainly fine elsewhere.


Brief Mountain Forecast

Issued at 4:18am Sunday

Valid to Midnight Sunday

South Island

Kaikoura Ranges:

Increasing high cloud.

Remaining South Island mountain parks:

Rain with heavy falls and possible downpours in Fiordland, spreading north to about Arthur s Pass today. Easing to showers south of Mt Cook this evening.Snow lowering to 1500 metres in the south from afternoon.

WINDS: Northwesterly gales, severe in exposed places. Turning lighter southwest in the south this afternoon and evening.

Freezing Level: Above 3500 metres, lowering to 1800 metres in the south this evening.


Extended Mountain Forecast

Issued at: 4:20am Sunday

South Island

Monday:

Rain with heavy falls north of Arthurs Pass, easing to showers. Showers elsewhere becoming isolated, then clearing in the south and west. Snow down to 1200 metres in the far south at first. Gale or severe northwest in the north at first, Gale southerlies developing throughout, then easing.

Freezing Level: 1400 metres in the south at first, rising above 3500 metres everywhere.

Tuesday:

Mainly fine. Cloudy periods and isolated showers about and north of Nelson Lakes. Light winds.

Freezing Level: Above 3500 metres.

Wednesday:

Mainly fine, areas of morning cloud. Winds mainly light, northwesterlies developing in the south.

Freezing Level: Above 3500 metres.


Nelson Lakes National Park

Today - Sunday 25 February

Issued at: 10:35pm Saturday

Cloud increasing, isolated showers developing in the afternoon, turning to rain at night. Northwesterlies rising to gale in the afternoon, possibly severe in exposed places.

Freezing level 4400m

Tomorrow - Monday

Rain, possibly heavy, easing to showers in the morning then gradually clearing.

Freezing level 2800m

Tuesday

Mainly fine. Light winds.

Wednesday

Mainly fine. Light winds.

Freezing level  Above 3000 metres.

Thursday

Cloud increasing, a few late showers. Northwesterlies developing.

Freezing level  Above 3000 metres.


Canterbury High Country

Today

Issued at 9:24pm Saturday

Rain developing about the Divide in the morning with isolated showers further east. Rain developing everywhere from afternoon, with some heavy falls.

Wind at 1000 metres: Northwest 40 km/h, rising to severe gale 85 km/h in the morning, changing southwest 20 km/h overnight.

Wind at 2000 metres: Northwest rising to severe gale 130 km/h in the morning, changing southwest 30 km/h overnight.

Freezing level: Lowering to 2700 metres for a time in the morning and afternoon.

Tomorrow

Showers, becoming isolated in the afternoon and fine breaks increasing.

Wind at 1000 metres: Southwest 20 km/h.

Wind at 2000 metres: Southwest 30 km/h.

Freezing level: Lowering to 2500 metres in the morning, then rising above 3000 metres in the afternoon.

Tue Feb 27

Fine apart from areas of morning and evening cloud. Light winds.

Wed Feb 28

Fine apart from areas of morning cloud. Northwesterly breezes developing.

Thu Mar 1

Mainly fine, rain developing about the divide. Northwesterlies becoming strong or gale.


Westland Forecast

Issued at: 4:07am 25 Feb

SUNDAY

A few showers turning to rain this morning, with heavy falls from afternoon. Strong northerlies developing this morning, changing strong southwest this evening.

MONDAY

Rain easing to a few showers early morning, then clearing to fine early afternoon. Southwesterlies dying out in the morning. Easterlies developing in the evening.

TUESDAY

Fine. Light winds.

WEDNESDAY

Fine. Light winds.

THURSDAY

Cloud increasing, late rain. Northerlies developing.

FRIDAY

Rain with little wind.


Southern Lakes

Today

Issued at 9:24pm Saturday

Scattered rain developing in the morning, becoming widespread in the afternoon with heavy falls about the headwaters. Easing to showers overnight. Snow lowering to 1500 metres for a time in the evening.

Wind at 1000 metres: Northwest rising to gale 75 km/h in the morning, changing southwest 45 km/h in the evening.

Wind at 2000 metres: Northwest rising to severe gale 110 km/h in the morning, changing southwest 60 km/h in the evening.

Freezing level: Above 3000 metres, but lowering to 2300 metres at night.

Tomorrow

Isolated showers clearing morning and becoming fine.

Wind at 1000 metres: Southwest 40 km/h, easing to 20 km/h in the afternoon.

Wind at 2000 metres: Southwest 50 km/h, easing to southeast 30 km/h in the afternoon.

Freezing level: Rising above 3000 metres in the morning.

Tue Feb 27

Fine apart from areas of morning cloud. Light winds.

Wed Feb 28

Mainly fine. Northerlies developing.

Thu Mar 1

Cloud increasing, rain developing about the headwaters.Northwesterlies becoming strong or gale.


Mt Aspiring National Park

Today - Sunday 25 February

Issued at: 10:35pm Saturday

Rain setting in, heavy at times. Snow lowering to 1500m for a time evening. Rain clearing overnight. Severe gale northwest, turning gale southwest at night and easing overnight.

Freezing level 3200m

Tomorrow - Monday

Mainly fine.

Freezing level 3500m

Tuesday 27 February

Mainly fine. Northerlies developing.

Wednesday 28 February

Mainly fine. Northerlies developing.

Freezing level  Above 3500 metres.

Thursday 1 March

Rain developing, possibly heavy. Northwesterlies rising to gale or severe gale.

Freezing level  Above 3500 metres.


Fiordland National Park

Today - Sunday 25 February

Issued at: 10:35pm Saturday

Heavy rain, with possible downpours and thunderstorms, easing overnight. Snow to 1400m afternoon and evening. Severe gale northwest, turning southwest and easing overnight.

Freezing level 3600m

Tomorrow - Monday

Mainly fine. Isolated showers in the south clearing.

Freezing level 3300m

Tuesday 27 February

Fine apart from areas of evening cloud. Northwesterlies developing.

Wednesday 28 February

Fine and cloudy periods. Northerlies strengthening.

Freezing level  Above 3000 metres.

Thursday 1 March

Rain developing, heavy falls possible. Northwesterlies rising to gale or severe gale.

Freezing level  Above 3000 metres.


Southland Forecast

Issued at: 6:30am 25 Feb

SUNDAY

Scattered rain, becoming widespread with heavy falls this this afternoon, then easing to scattered showers this evening. Northwesterlies gale gusting 130 km/h in exposed places. Changing lighter southwest this afternoon.

MONDAY

Showers easing in the morning, then becoming confined to the coast and Stewart Island from early afternoon and becoming fine inland.Southwesterlies, dying out in the afternoon.

TUESDAY

Fine apart from isolated early showers about the coast. Light winds.

WEDNESDAY

Mainly fine, late cloud. Northerlies developing.

THURSDAY

Cloud increasing, scattered late rain, mainly about Stewart Island and the coast. Northerlies picking up.

FRIDAY

Rain with little wind.


Foveaux

Valid to Midnight Sunday

Issued at 4:42am Sunday

Forecast:

Northwest 35 knots. Changing southwest 30 knots this afternoon. Very rough sea easing. Southwest swell 2 metres at times. Northwest swell 2 metres developing for a time. Poor visibility in heavy rain, easing late this afternoon.

Three Day Outlook:

Southwest 30 knots, easing Monday afternoon 15 knots and Tuesday variable 10 knots. Moderate southwest swell easing late Tuesday.

Our base operators transmit the latest forecast daily at 8.30am and 7.30pm