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: 10:54am Saturday 23

A slow-moving ridge of high pressure covers New Zealand today and tomorrow. However, a trough spreads onto the south of the South Island on Sunday afternoon from the Tasman Sea.


Short Forecast

Issued: 1:35pm Saturday 23 Mar

Valid to: Midnight Sunday 24 Mar

Buller, Westland, Nelson, Marlborough and Canterbury

Fine, apart from areas of low cloud or fog morning and night. However showers developing in Westland tomorrow evening.

Otago and Southland

Fine today. Becoming mostly cloudy tomorrow and scattered rain developing, mainly in Southland and Clutha.

Fiordland

Mostly cloudy. Rain developing tomorrow morning, some heavy falls from afternoon.


Extended Brief Forecast

Issued: 11:16am Saturday 23

Monday

South Island, heavy rain in the west spreading northwards. Scattered rain developing elsewhere, but remaining dry in Marlborough.

Tuesday

South Island, rain, heavy in the west, easing to showers in the south.

Wednesday

South Island, Rain or showers, heavy in the northwest, gradually easing.


Brief Mountain Forecast

Issued at 12:38pm Saturday 23

Valid to Midnight Sunday 24 Mar

South Island

Kahurangi and Nelson Lakes National Park, including Kaikoura ranges:

Fine, but areas of cloud or fog morning and night. isolated showers possible this afternoon.

The Southern Alps:

Fine but cloudy areas morning and night. A few showers developing tomorrow evening with rain in the far south tomorrow night.

Fiordland mountain:

Mostly cloudy. Rain developing tomorrow morning and becoming heavy from afternoon.

WINDS: Light winds but northerlies strengthening over Fiordland today. Gusty northwesterlies spreading everywhere tomorrow and rising to gale over Fiordland.

Freezing Level: Above 3500 metres.


Extended Mountain Forecast

Issued at: 12:58pm Saturday 23

South Island

Monday:

Rain spreading north, heavy south of Arthurs Pass. Remaining dry about the Kaikoura ranges. Gale northwesterlies, severe gale in exposed places.

Freezing Level: Above 3500 metres.

Tuesday:

Rain, heavy south of Arthurs Pass. Easing to showers in Fiordland and Mt Aspiring. But mainly dry about the Kaikoura ranges. Gale or severe gale northwesterlies.

Freezing Level: Above 3500 metres, but lowering to 2000 metres in the far south later.

Wednesday:

Rain or showers, gradually easing. Snow lowering to 1300 metres in the south. Gale northwesterlies easing,tending southwest in the south.

Freezing Level: Lowering to 3000 metres in the north and 1500 metres in the south.


Nelson Lakes National Park

Tomorrow - Sunday 24 March

Issued at: 1:32pm Saturday 23

Partly cloudy

Fine apart from morning and evening cloud.

Freezing level 3800m

Monday 25 March

Windy

Occasional rain developing in the morning. Northwesterlies rising to gale in exposed places in the evening.

Freezing level 3800m

Tuesday 26 March

Windy

Rain. Gale or severe gale northwesterlies.

Freezing level  Above 3000 metres.

Wednesday 27 March

Windy

Heavy rain, easing to a few showers later. Gale northwesterlies, severe gale at first, easing.

Freezing level  Above 3000 metres.


Canterbury High Country

Tomorrow

Issued at 11:50am Saturday 23

Fine apart from areas of morning low cloud or fog. Isolated showers developing about the Divide in the evening.

Wind at 1000 metres: Light at first. Northwest 30 km/h developing in the afternoon.

Wind at 2000 metres: Northwest 30 km/h developing in the morning, rising to 45 km/h in the afternoon.

Freezing level: Above 3500 metres.

Mon Mar 25

Scattered rain developing in the south in the morning, and spreading north during the afternoon. Persistent rain with heavy falls about the Divide.

Wind at 1000 metres: Northwest rising to 45 km/h in the morning, and to gale 70 km/h north of Mt Hutt in the afternoon.

Wind at 2000 metres: Northwest rising to gale 65 km/h in the morning, to gale 80 km/h in the afternoon and to severe gale 100 km/h in the evening.

Freezing level: Above 3500 metres.

Tue Mar 26

Heavy rain. Gale or severe gale northwesterlies.

Wed Mar 27

Rain, with heavy falls about the divide, easing to showers, snow possibly lowering to 1600 metres. Gale northwesterlies changing lighter southwest.


Westland Forecast

Issued at: 2:01pm 23 Mar

SUNDAY

24 MAR

Morning cloud then fine. Cloud and isolated showers developing in the evening. However, south of Lake Moeraki, rain developing in the afternoon, with possibly heavy falls from evening. Northeasterlies.

MONDAY

25 MAR

Rain with heavy falls south of the Glaciers. In the north, scattered rain becoming widespread and possibly heavy from afternoon. Northerlies, strong about the coast at times.

TUESDAY

26 MAR

Heavy rain, possibly thundery. Strong or gale northerlies.

WEDNESDAY

27 MAR

Heavy rain, turning to showers, some possibly heavy, then clearing late. Early change to southwesterlies.

THURSDAY

28 MAR

Becoming fine. Southerlies dying out.


Southern Lakes

Tomorrow

Issued at 11:50am Saturday 23

Areas of morning low cloud or fog, then high cloud increasing. Isolated showers developing in the evening. However, about the headwaters, rain developing in the afternoon with possibly heavy falls.

Wind at 1000 metres: Light at first. Northwest 40 km/h developing in the afternoon.

Wind at 2000 metres: Northwest 40 km/h gradually rising to 60 km/h.

Freezing level: Above 3500 metres.

Mon Mar 25

Occasional rain, with heavy falls about the headwaters.

Wind at 1000 metres: Northwest 40 km/h, rising to gale 65 km/h in the evening.

Wind at 2000 metres: Northwest rising to gale 70 km/h in the morning, and to gale 85 km/h in the evening.

Freezing level: Above 3000 metres.

Tue Mar 26

Heavy rain and gale or severe gale northerlies, both easing later.

Wed Mar 27

Occasional showers, gradually clearing. Snow lowering to 1400 metres. A change to southwesterlies.


Mt Aspiring National Park

Tomorrow - Sunday 24 March

Issued at: 1:32pm Saturday 23

Windy

Rain developing in the morning, becoming heavy from afternoon. Northerlies rising to gale in exposed places in the afternoon.

Freezing level 4100m

Monday 25 March

Windy

Rain with heavy falls. Gale northwesterlies, rising to severe gale in the evening.

Freezing level 3600m

Tuesday 26 March

Windy

Heavy rain, easing later. Snow lowering to 2200 metres. Gale northwesterlies, severe gale at first.

Freezing level  Lowering to 2600 metres.

Wednesday 27 March

Windy

Showers easing, clearing later. Snow level lowering to 1400 metres for a time. Gale or severe gale northwesterlies turning lighter southwest.

Freezing level  Lowering to 2000 metres.


Fiordland National Park

Tomorrow - Sunday 24 March

Issued at: 1:32pm Saturday 23

Windy

Rain developing in the morning, becoming heavy from afternoon. Northerlies, gale in exposed places, easing at night.

Freezing level 3900m

Monday 25 March

Windy

Rain with heavy falls. Northerlies rising to severe gale in exposed places during the afternoon and evening.

Freezing level 3200m

Tuesday 26 March

Windy

Heavy rain, easing to showers. Snow lowering to 1600 metres. Gale or severe gale northwesterlies.

Freezing level  Lowering to 2200 metres.

Wednesday 27 March

Windy

Showers, some possibly heavy, easing, then clearing later. Snow level lowering to 1200 metres for a time. Gale or severe gale northwesterlies turning lighter southwest.

Freezing level  Lowering to 1400 metres.


Southland Forecast

Issued at: 2:01pm 23 Mar

SUNDAY

24 MAR

Mostly cloudy. Scattered rain developing late morning. Northerlies, becoming strong in exposed places.

MONDAY

25 MAR

Scattered rain. Northerlies, strong in exposed places.

TUESDAY

26 MAR

Rain, possibly heavy, easing to a few showers later. Northerlies, strong or gale about the coast, changing westerly.

WEDNESDAY

27 MAR

Occasional showers, clearing late. Southwesterlies.

THURSDAY

28 MAR

Increasing fine spells. Southwesterlies dying out.


Foveaux

Valid to Midnight Sunday 24 Mar

Issued at 12:35pm Saturday 23

Forecast:

Variable 10 knots, but northeast 15 knots east of Slope Point to Shelter Point. Changing northerly 15 kots in the west on Sunday morning. Sea slight. Southwest swell rising to 2 metres for a time offshore.Easterly swell 1 metre. Possible fog in the east from this evening, clearing Sunday morning. Poor visibility in periods of rain from Sunday afternoon.

Three Day Outlook:

Northerly 15 knots, rising for a time Tuesday northwest 25 knots with rough sea,changing Wednesday southwest 20 knots. Moderate southwest swell at times.

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