Mountain Radio

Latest South Island Weather Forecast

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


Situation Statement

Issued: 12:59am Tuesday 21

A ridge of high pressure lies over New Zealand today and tomorrow, while a front moves onto the southwest of the country tomorrow afternoon.


Short Forecast

Issued: 4:43am Tuesday 21 May

Valid to: Midnight Tuesday 21

Nelson, Marlborough, Canterbury, and Otago excluding Clutha

Fine, apart from areas of cloud morning and night.

Westland and Buller

Mainly fine, but the odd light coastal shower north of Hokitika.

Fiordland and Southland, also Clutha

Areas of cloud and isolated showers about the coast, retreating to western Fiordland and Stewart Island today. Otherwise fine.


Extended Brief Forecast

Issued: 11:04pm Monday 20 May

Wednesday

South Island, a few showers in the west and south, turning to rain for a time, but fine elsewhere.

Thursday

South Island, showers in the west and south clearing. Fine elsewhere.

Friday

South Island, a few showers in the west, turning to rain about Fiordland, but mainly fine elsewhere.


Brief Mountain Forecast

Issued at 4:02am Tuesday 21

Valid to Midnight Tuesday 21

South Island

Fiordland National Park:

About the Fiords, cloudy periods and occasional showers, becoming more frequent tonight. Fine elsewhere.

Remaining areas:

Fine, apart from areas of morning and evening cloud. Winds: West to southwesterlies. Tending northwest south of Mt Cook from afternoon and gradually rising to gale in exposed places in the far south.

Freezing Level: 3200 metres, lowering to 2400 metres in the south this afternoon.


Extended Mountain Forecast

Issued at: 4:03am Tuesday 21

South Island

Wednesday:

A few showers, turning to rain for a time. However, fine about the Kaikoura ranges. Westerlies, strong about Kahurangi and Fiordland.

Freezing Level: 3000 metres in the north sloping to 2000 metres in the south.

Thursday:

Fine about the Kaikoura ranges. Cloudy periods and a few showers elsewhere, clearing early. Westerlies, strong at times about Fiordland.

Freezing Level: 2800 metres in the north sloping to 2100 metres in the south.

Friday:

Cloudy periods, and a few showers developing, turning to rain about Fiordland with snow to 1600 metres. However, fine about the Kaikoura ranges. Northwesterlies, strong or gale south of Nelson Lakes National Park.

Freezing Level: 2700 metres in the north sloping to 1900 metres in the south.


Nelson Lakes National Park

Today - Tuesday 21 May

Issued at: 8:26pm Monday 20

Partly cloudy

Mainly fine, areas of cloud morning and evening.

Freezing level 3200m

Tomorrow - Wednesday

Cloudy

Cloud increasing, a few late showers.

Freezing level 2800m

Thursday 23 May

Few showers

Showers clearing early and becoming fine. Southwesterlies dying out.

Friday 24 May

Partly cloudy

Cloudy periods. Westerly breezes.

Freezing level  About 2900 metres.

Saturday 25 May

Few showers

Cloudy periods. A few showers developing. Westerlies becoming strong.

Freezing level  About 2600 metres.


Canterbury High Country

Today

Issued at 10:40pm Monday 20

Fine apart from areas of morning and evening cloud.

Wind at 1000 metres: Westerly 40 km/h.

Wind at 2000 metres: Southwesterly 30 km/h.

Freezing level: About 3000 metres.

Tomorrow

Rain developing about the Divide, easing to isolated showers in the evening.Fine with some high cloud farther east.

Wind at 1000 metres: Northwesterly 50 km/h.

Wind at 2000 metres: Westerly 40 km/h, possibly rising to gale 65 km/h in the afternoon.

Freezing level: Lowering to 2400 metres in the afternoon.

Thu May 23

Remaining rain clearing early and becoming fine. Westerly breezes.

Fri May 24

Mainly fine, but cloudy periods about the divide. Westerlies, possibly strong in exposed places.

Sat May 25

Fine, but a few showers about the divide. Northwesterlies, strong or gale in exposed places.


Westland Forecast

Issued at: 6:33am 21 May

TUESDAY

21 MAY

Areas of morning and evening cloud, but fine otherwise. Isolated showers possible early morning north of Lake Brunner. Light winds.

WEDNESDAY

22 MAY

Cloud increasing and isolated showers developing in the morning. Turning to rain in the afternoon and easing from south in the evening. Light winds, but westerlies along the coast.

THURSDAY

23 MAY

Showers clearing early and becoming fine. Southwest breezes.

FRIDAY

24 MAY

Partly cloudy. A few showers developing in the north. Light winds.

SATURDAY

25 MAY

Occasional showers. Light winds.

SUNDAY

26 MAY

Rain. Little wind.


Southern Lakes

Today

Issued at 10:40pm Monday 20

Fine, but some morning cloud and early frosts possible. High cloud increasing from late evening.

Wind at 1000 metres: Light at first, northwesterly 40 km/h developing in the evening.

Wind at 2000 metres: Southwesterly 40 km/h, tending westerly 45 km/h in the evening.

Freezing level: About 3000 metres, lowering to 2600 metres in the evening.

Tomorrow

Cloudy with scattered rain developing about the headwaters in the morning and clearing late evening.

Wind at 1000 metres: Northwesterly 45 km/h, turning westerly 30 km/h by evening.

Wind at 2000 metres: Northwesterly 60 km/h, rising to gale 70 km/h for a time, but easing to 40 km/h in the evening.

Freezing level: Lowering to 2200 metres.

Thu May 23

Mainly fine. Westerlies.

Fri May 24

Cloudy periods. Showers developing about the headwaters later. Northwesterlies, becoming strong in exposed places.

Sat May 25

Occasional rain about the headwaters, partly cloudy further east. Snow possible to 1600 metres. Northwesterlies, strong or gale in exposed places.


Mt Aspiring National Park

Today - Tuesday 21 May

Issued at: 8:26pm Monday 20

Cloudy

Mostly cloudy, but fine spells in the afternoon. A few late showers developing.

Freezing level 3200m

Tomorrow - Wednesday 22 May

Windy

Rain, with snow to 2000 metres, easing to isolated showers late afternoon or evening. Northwesterlies, gale about the tops from early morning, easing afternoon.

Freezing level 2400m

Thursday 23 May

Partly cloudy

Becoming fine in the morning. Southwesterlies.

Friday 24 May

Few showers

Cloudy periods. Showers developing. Northwesterlies, becoming strong about the tops.

Freezing level  Lowering to 2000 metres.

Saturday 25 May

Windy

Occasional showers. Snow possible to 1800 metres. Northwesterlies, strong or gale in exposed places.

Freezing level  About 2000 metres.


Fiordland National Park

Today - Tuesday 21 May

Issued at: 8:26pm Monday 20

Showers

Occasional light showers, becoming frequent in the evening. However, mainly fine about the Lakes, chance morning fog. Gale northwesterly developing about the tops at night.

Freezing level 3200m

Tomorrow - Wednesday 22 May

Windy

Rain, falling as snow to 1900 metres, easing to showers in the afternoon. Gale northwesterlies, tending westerly and easing in the afternoon.

Freezing level 2300m

Thursday 23 May

Few showers

Rain easing to isolated showers early. Westerlies, strong in the south.

Friday 24 May

Windy

Showers turning to rain with snow to 1600 metres. Northwesterlies, gale in exposed places.

Freezing level  Lowering to 1900 metres.

Saturday 25 May

Windy

Occasional rain. Snow possible to 1500 metres. Gale northwesterlies.

Freezing level  About 2000 metres.


Southland Forecast

Issued at: 6:33am 21 May

TUESDAY

21 MAY

Cloudy periods with occasional showers about the coast, retreating to Stewart Island early afternoon. Mainly fine with evening high cloud inland. Westerlies tending northerly at night.

WEDNESDAY

22 MAY

Isolated showers becoming confined to the coast by afternoon, but cloudy periods remaining. About Stewart Island, occasional showers. Northerlies turning westerly by midday, strong about and south of the coast.

THURSDAY

23 MAY

Cloudy periods. Morning showers about and south of the coast. Westerlies.

FRIDAY

24 MAY

Mainly fine with high cloud, but a few showers about Stewart Island. Northwesterlies.

SATURDAY

25 MAY

Occasional rain, mainly about Stewart Island. Northwesterlies,strong in exposed places.

SUNDAY

26 MAY

Rain. Northwesterlies.


Foveaux

Valid to Midnight Tuesday 21

Issued at 6:11am Tuesday 21 May 2019

Forecast:

Westerly 30 knots, easing to 20 knots this morning, and to northerly 15 knots this evening. Rough sea, easing. Southwest swell 4 metres offshore, easing. Fair visibility in showers, clearing afternoon.

Three Day Outlook:

Becoming Wednesday westerly 20 knots,rising late Friday northwest 30 knots with rough sea. Heavy southwest swell easing Wednesday.

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