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: 12:34am Saturday 22 Sep

A front gradually moves off the top of the North Island today, while a ridge lies across central New Zealand. The ridge then weakens as it moves northwards over the North Island tomorrow, allowing a front to move onto the southwest of the South Island from the Tasman Sea.


Short Forecast

Issued: 3:54am Saturday 22 Sep

Valid to: Midnight Saturday 22 Sep

For all the South Island

Fine, apart from some cloudy areas morning and evening, and a few showers about Fiordland.


Extended Brief Forecast

Issued: 11:30pm Friday 21 Sep

Sunday

South Island, Rain developing in the west and south, with snow lowering to 500 metres at night in the south. Fine elsewhere.

Monday

South Island, Rain easing to showers, then mostly clearing later apart from the west coast and coastal Southland. Snow to 3-400m in the south and east.

Tuesday

South Island, Fine for most, but showers about the west coast and coastal Southland.


Brief Mountain Forecast

Issued at 4:10am Saturday 22 Sep

Valid to Midnight Saturday 22 Sep

South Island

Fiordland:

Cloud increasing this morning, and a few showers developing.

Remaining South Island mountain areas:

Mainly fine. Cloud increasing in the west from Kahurangi National Park to Mount Aspiring this evening.

WINDS: Mainly south to southwesterly, but strengthening westerlies in Fiordland.

Freezing Level: About 2500 metres, lowering to 2000 metres in fiordland this evening.


Extended Mountain Forecast

Issued at: 4:12am Saturday 22 Sep

South Island

Sunday:

Rain spreading north, but remaining dry about the Kaikoura ranges. Rain turning to snow south of Mt Cook and above 1000 metres between Arthurs Pass and Mt Cook. Southwesterlies, gale in the south at first.

Freezing Level: Lowering to 2400 metres in the north and to 900 metres in the far south.

Monday:

Snow easing during the day then retreating to Fiordland later and becoming fine elsewhere. Southwesterlies.

Freezing Level: Lowering to 800 metres everywhere, but 600 metres for a time in the far south.

Tuesday:

Snow showers for the west and south, mainly fine farther east. However, snow about Kaikoura ranges, clearing early. Westerlies rising to gale or severe gale.

Freezing Level: Rising to 1200 metres in the north, but remaining 800 metres in the south.


Nelson Lakes National Park

Today - Saturday 22 September

Issued at: 9:08pm Friday 21 Sep

Partly cloudy

Fine, apart from morning and evening cloud.

Freezing level 2500m

Tomorrow - Sunday 23 September

Few showers

Cloudy periods. A few evening showers.

Freezing level 2800m

Monday 24 September

Snow

Showers turning to rain, clearing later. Snow lowering to 600 metres. Strong southwesterlies.

Tuesday 25 September

Windy

Showers. Snow level rising to 900 metres. Westerlies rising to gale or severe gale.

Freezing level  Rising to 1100 metres.

Wednesday 26 September

Windy

Showers. Snow to 600 metres. Gale or severe gale westerlies.

Freezing level  Lowering to 800 metres.


Canterbury High Country

Today

Issued at 9:24pm Friday 21 Sep

Fine apart from some morning cloud.

Wind at 1000 metres: Light.

Wind at 2000 metres: Light.

Freezing level: 2300 metres, lifting to 2800 metres during morning.

Tomorrow

Fine at first, apart from a few showers about the Divide. Cloud increasing from afternoon, then rain spreading from the south at night with snow lowering to 1000 metres.

Wind at 1000 metres: Northwest 35 km/h.

Wind at 2000 metres: Westerly rising to 60 km/h in the morning.

Freezing level: Gradually lowering to 2000 metres in the north sloping to 1400 metres in the south.

Mon Sep 24

Rain easing to showers in the morning, then clearing overnight. Snow to 500 metres. Southwesterlies easing.

Tue Sep 25

Showers developing west of the Divide with snow to 700 metres. Fine in the east. Westerlies rising to gale or severe gale.

Wed Sep 26

Showers about the Divide with snow to 500 metres, spreading farther east for a time. Strong southwesterlies.


Westland Forecast

Issued at: 6:25am 22 Sep

SATURDAY

22 SEP

Fine. Evening cloud. Southwesterlies.

SUNDAY

23 SEP

A few showers developing in the morning, turning to rain in the evening. Winds gradually turning northwest, then changing southwest at night.

MONDAY

24 SEP

Showers clearing afternoon, but a few may linger in the north. Southwesterlies.

TUESDAY

25 SEP

Showers developing. Westerlies, becoming strong later.

WEDNESDAY

26 SEP

Showers with strong southwesterlies.

THURSDAY

27 SEP

Partly cloudy with little wind.


Southern Lakes

Today

Issued at 9:24pm Friday 21 Sep

Fine apart from morning and evening cloud.

Wind at 1000 metres: Light.

Wind at 2000 metres: Light until afternoon, then westerly 40 km/h developing.

Freezing level: About 2600 metres.

Tomorrow

Cloud increasing with a few showers about the Headwaters. Rain developing by evening with snow lowering to 700 metres.

Wind at 1000 metres: Northwest 35 km/h, dying out in the evening.

Wind at 2000 metres: Northwest rising to gale 70 km/h in the morning, easing to 50 km/h in the evening.

Freezing level: Gradually lowering to 1300 metres.

Mon Sep 24

Showers, with snow to 400 metres, clearing morning then becoming fine. Southwesterlies easing.

Tue Sep 25

Cloudy periods, showers developing about the headwaters with snow to 600 metres. Westerlies rising to gale or severe gale.

Wed Sep 26

Showers, with snow lowering to 400 metres. Strong southwesterlies.


Mt Aspiring National Park

Today - Saturday 22 September

Issued at: 9:08pm Friday 21 Sep

Partly cloudy

Fine, apart from morning and evening cloud.

Freezing level 2700m

Tomorrow - Sunday 23 September

Windy

Cloud increasing with a few showers, turning to rain in the afternoon, with snow gradually lowering to 800 metres. Westerlies, gale about higher ground.

Freezing level 1700m

Monday 24 September

Snow

Showers easing. Snow lowering to 400 metres. Southwesterlies.

Tuesday 25 September

Windy

Showers. Snow level rising to 700 metres. Westerlies rising to gale or severe gale.

Freezing level  Rising to 1000 metres.

Wednesday 26 September

Windy

Showers. Snow lowering to 400 metres. Gale southwesterlies.

Freezing level  Lowering to 600 metres.


Fiordland National Park

Today - Saturday 22 September

Issued at: 9:08pm Friday 21 Sep

Windy

A few showers about the coast, else fine apart from morning and evening cloud. Northwesterly rising to gale in the south during the afternoon.

Freezing level 2200m

Tomorrow - Sunday 23 September

Windy

Showers turning to rain in the morning, then easing in the evening. Snow lowering to 500 metres. Westerlies, gale in exposed places, easing in the evening.

Freezing level 1400m

Monday 24 September

Windy

Showers easing. Snow to 300 metres at first. Strong westerlies.

Tuesday 25 September

Windy

Showers. Snow level rising to 600 metres. Gale or severe gale westerlies.

Freezing level  Rising to 900 metres.

Wednesday 26 September

Windy

Showers. Snow lowering to 300 metres. Gale southwesterlies.

Freezing level  Lowering to 600 metres.


Southland Forecast

Issued at: 6:25am 22 Sep

SATURDAY

22 SEP

Areas of morning cloud for the mainland, then fine. However, about Stewart Island, often cloudy and a few light showers. Westerlies, strong about Foveaux Strait.

SUNDAY

23 SEP

Thickening high cloud. Rain spreading from the south late morning and afternoon with a cold southerly change, easing to showers in the evening. Snow lowering to 500 metres.

MONDAY

24 SEP

Rain easing to showers in the morning, then retreating to the coast overnight. Snow to 300 metres. Strong cold southwesterlies slowly easing.

TUESDAY

25 SEP

Showers about the coast, spreading inland for a time. Westerlies strengthening, rising to gale about the coast.

WEDNESDAY

26 SEP

Showers with snow to 300 metres. Strong southwesterlies.

THURSDAY

27 SEP

Cloudy with little wind.


Foveaux

Valid to Midnight Saturday 22 Sep

Issued at 4:42am Saturday 22 Sep

Forecast:

Northwest 20 knots rising 35 knots this morning.Sea becoming very rough. Southwest swell rising to 4 metres east of Slope Point. Northeast swell 1 metre.

Three Day Outlook:

Easing Sunday morning westerly 20 knots, rising Tuesday 40 knots with very rough sea. Southwest swell, heavy at times offshore.

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