Mountain Radio

Latest South Island Weather Forecast

This forecast was transmitted by ZKIB BASE this evening on our 7.30pm call  to all of our field sets located in the South Island and Stewart Island.


Situation Statement

Issued: 10:05am Monday 20 May

A southwest flow over New Zealand eases today as ridge of high pressure moves over the country.


Short Forecast

Issued: 3:38pm Monday 20 May

Valid to: Midnight Tuesday 21

Nelson, Marlborough, Canterbury, and Otago excluding Clutha

Fine today. Mainly fine tomorrow, apart from some morning and evening cloud.

Buller

Fine and cloudy periods, with isolated showers, clearing tomorrow.

Westland

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

Fiordland and Southland, also Clutha

Areas of cloud and isolated showers about the coast, but fine inland. Strong westerlies about the coast, gradually easing.


Extended Brief Forecast

Issued: 11:08am 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, and 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 12:16pm Monday 20

Valid to Midnight Tuesday 21

South Island

Fiordland National Park:

Cloudy periods. Isolated showers about the Fiords, becoming more frequent later tomorrow. Remaining areas:

Fine weather. Winds: Southwesterlies, strong or gale in exposed places south of Mount Cook.

Freezing Level: 3200 metres in the north, sloping to 1600 metres in the far south. rising to 2600 metres in the south this evening.


Extended Mountain Forecast

Issued at: 1:33pm Monday 20

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

Tomorrow - Tuesday 21 May

Issued at: 12:03pm Monday 20

Partly cloudy

Mainly fine, areas of cloud morning and evening.

Freezing level 3200m

Wednesday 22 May

Partly cloudy

Cloud increasing.

Freezing level 3000m

Thursday 23 May

Few showers

Showers clearing early and becoming fine. Southwesterlies dying out.

Freezing level  About 2600 metres.

Friday 24 May

Partly cloudy

Cloudy periods. Westerly breezes.

Freezing level  About 2900 metres.


Canterbury High Country

Tomorrow

Issued at 11:11am 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: Lowering to 2800 metres in the evening.

Wed May 22

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

Wind at 1000 metres: Northwesterly 40 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.


Westland Forecast

Issued at: 5:23pm 20 May

TUESDAY

21 MAY

Areas of morning and evening cloud, but fine otherwise. Isolated showers possible early 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.


Southern Lakes

Tomorrow

Issued at 11:11am Monday 20

Fine, but some morning cloud and early frosts possible. High cloud increasing from 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 40 km/h in the evening.

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

Wed May 22

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: 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.


Mt Aspiring National Park

Tomorrow - Tuesday 21 May

Issued at: 12:03pm Monday 20

Cloudy

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

Freezing level 3200m

Wednesday 22 May

Windy

Rain, easing to isolated showers in the afternoon. Northwesterlies, possibly gale about the tops at first.

Freezing level 2000m

Thursday 23 May

Partly cloudy

Becoming fine in the morning. Southwesterlies.

Freezing level  Rising to 2800 metres.

Friday 24 May

Few showers

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

Freezing level  Lowering to 2000 metres.


Fiordland National Park

Tomorrow - Tuesday 21 May

Issued at: 12:03pm 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 3100m

Wednesday 22 May

Windy

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

Freezing level 2100m

Thursday 23 May

Few showers

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

Freezing level  Rising to 2400 metres.

Friday 24 May

Windy

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

Freezing level  Lowering to 1900 metres.


Southland Forecast

Issued at: 5:23pm 20 May

TUESDAY

21 MAY

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

WEDNESDAY

22 MAY

Isolated showers becoming confined to the south 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.


Foveaux

Valid to Midnight Tuesday 21

Issued at 4:42pm Monday 20

Forecast:

Westerly 30 knots, easing to 20 knots Tuesday morning. Turning northerly 20 knots Tuesday evening. Rough sea,easing. Southwest swell 5 metres offshore,easing. Fair visibility in showers, clearing Tuesday 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