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: 10:36am Saturday 19

A deep low sweeps past to the south of the country later today, while a ridge of high pressure remains over the northern Tasman Sea. A front preceded by very strong northwesterlies and followed by strong southwesterlies moves onto the South Island early this afternoon and reaches Cook Strait early tomorrow morning.


Short Forecast

Issued: 4:46am Sunday 20 Jan

Valid to: Midnight Sunday 20 Jan

Nelson, Marlborough and Canterbury

Mainly fine, but a few afternoon showers about the ranges, and areas of evening cloud.

Buller to Fiordland

Showers, turning to rain for a time in the afternoon or evening in Westland and Fiordland.

Otago and Southland

Fine spells, but showers about the south coast, with severe westerly gales there this morning. Showers spreading elsewhere for a time afternoon and evening, with rain in the south.


Extended Brief Forecast

Issued: 11:21pm Saturday 19 Jan

Monday

South Island, showers in the west and south. Fine elsewhere apart from isolated afternoon and evening showers. Strong or gale westerlies for Southland and Clutha.

Tuesday

Mainly fine across the North Island and the east coast of the South Island. Periods of rain about Fiordland. Elsewhere, a few showers.

Wednesday

South Island, Rain spreading from the south with some heavy falls, with scattered falls further east. Strong or gale northwesterlies turning lighter southwest.


Brief Mountain Forecast

Issued at 4:14am Sunday 20 Jan  

Valid to Midnight Sunday 20 Jan

South Island

Kaikoura ranges:

Fine.

Kahurangi and nelson lakes National Parks:

Scattered showers.

The southern Alps and Fiordland:

Scattered showers, mainly in the west. Turning to rain for a time in the afternoon or evening, possibly heavy in Fiordland. Snow to 1400 metres in Fiordland at first.

WINDS: Severe westerly gales.

Freezing Level: Above 3500 metres in the north, sloping to 1600 metres in the south. rising to 2000 metres for a time in the south.


Extended Mountain Forecast

Issued at: 4:15am Sunday 20 Jan

South Island

Monday:

Showers, but fine about the Kaikoura ranges. Strong or gale southwesterlies.

Freezing Level: Above 3000 metres in the north, sloping to 3000 metres about mt cook and to 1500 metres in southern fiordland.

Tuesday:

Often cloudy with a few showers, turning to rain south of Arthurs Pass with possibly heavy falls. However, fine about the Kaikoura ranges. Westerlies,rising to gale or severe gale in the south.

Freezing Level: Rising above 3000 metres everywhere.

Wednesday:

Periods of rain with possibly heavy falls. Falling as snow to about 2000 metres about Mt Cook and 1000 metres in Fiordland. However, cloudy periods with a few spots of late rain about the Kaikoura ranges. Gale or severe gale northwesterlies,changing lighter southwesterly.

Freezing Level:

Above 3000 metres in the north, sloping to 2500 metres about mt cook and to 1400 metres in southern fiordland.


Nelson Lakes National Park

Today - Sunday 20 January

Issued at: 10:37pm Saturday 19

Windy

Rain clearing in the morning, but returning in the evening. Gale southwesterlies, but rising to severe gale in exposed places in the morning and evening.

Freezing level 3800m

Tomorrow - Monday 21 January

Windy

Rain easing to showers in the morning and clearing in the evening. Gale westerlies, but severe gale in exposed places in the morning.

Freezing level 3200m

Tuesday 22 January

Few showers

Partly cloudy, isolated showers. Strong westerlies.

Wednesday 23 January

Windy

Rain setting in, with possibly heavy falls, easing at night. Westerlies rising to gale.

Freezing level  Above 3000 metres.

Thursday 24 January

Windy

Partly cloudy with isolated showers, clearing later. Southwesterlies, gale at first, easing.

Freezing level  Lowering to 2300 metres.


Canterbury High Country

Today

Issued at 10:37pm Saturday 19

Showers about the Divide, fine in the east.

Wind at 1000 metres: Westerly severe gale 110 km/h easing to gale 75 km/h in the morning.

Wind at 2000 metres: Westerly severe gale 130 km/h easing to 95 km/h in the morning.

Freezing level: Above 3000 metres north of Mt Cook. 2600 metres in the south.

Tomorrow

Showers about the Divide, clearing in the evening. Morning cloud clearing to a fine day further east.

Wind at 1000 metres: Westerly gale 75 km/h easing to 65 km/h in the evening.

Wind at 2000 metres: Westerly severe gale 95 km/h, easing to gale 70 km/h in the evening.

Freezing level: Gradually rising above 3000 metres everywhere.

Tue Jan 22

A few showers about the Divide, turning to rain later. Fine in the east. Westerlies, rising to strong or gale in exposed places.

Wed Jan 23

Rain about the Divide with heavy falls, and scattered falls farther east, easing at night. Strong or gale northwesterlies, turning lighter southwest.

Thu Jan 24

Becoming fine about the Divide, with scattered rain in the east gradually clearing. Southwesterlies, easing later.


Westland Forecast

Issued at: 4:48am 20 Jan

SUNDAY

20 JAN

Showers, turning to rain in the evening. Strong southwesterlies.

MONDAY

21 JAN

Rain easing to showers in the morning. Showers becoming confined to higher ground in the afternoon with fine spells increasing elsewhere. Southwesterlies.

TUESDAY

22 JAN

Often cloudy with a few showers, turning to rain later. Westerlies.

WEDNESDAY

23 JAN

Periods of rain, some heavy falls, easing overnight. Northwesterlies, turning southwest.

THURSDAY

24 JAN

Becoming fine. Southwesterlies, easing later.

FRIDAY

25 JAN

Partly cloudy. Not much wind.


Southern Lakes

Today

Issued at 10:37pm Saturday 19

Showers about the Headwaters. Mainly fine elsewhere but cloud increasing in the afternoon with a few showers.

Wind at 1000 metres: Westerly rising to gale 65 km/h in the morning and to severe gale 90 km/h in the afternoon, then easing to westerly 50 km/h at night.

Wind at 2000 metres: Westerly gale 80 km/h, rising to severe gale 110 km/h for a time in the afternoon and evening.

Freezing level: 2000 metres rising to 2300 metres in the morning.

Tomorrow

Partly cloudy, with showers about the headwaters.

Wind at 1000 metres: Westerly 50 km/h rising to gale 65 km/h for a time in the afternoon.

Wind at 2000 metres: Westerly gale 75 km/h.

Freezing level: 2100 metres, rising to 2500 metres toward evening.

Tue Jan 22

Mainly fine, but a few showers about the headwaters. Westerlies, rising to gale in exposed places.

Wed Jan 23

Rain setting in, with heavy falls about the headwaters, easing at night. Gale northwesterlies, turning lighter southwest.

Thu Jan 24

A few spots of morning rain, then becoming fine. Southwesterlies easing.


Mt Aspiring National Park

Today - Sunday 20 January

Issued at: 6:36am Sunday 20 Jan

Windy

A few showers, turning to rain for a time in the afternoon and evening. Gale westerlies, severe gale in exposed places.

Freezing level 1900m

Tomorrow - Monday 21 January

Windy

Showers gradually clearing. Gale southwesterlies, severe gale in exposed places.

Freezing level 2000m

Tuesday 22 January

Windy

Periods of rain, with possibly heavy falls later. Gale westerlies, severe in exposed places.

Freezing level 3200m

Wednesday 23 January

Windy

Rain, possibly heavy, easing later. Snow lowering to 1500 metres. Northwest gales, easing later.

Freezing level  Lowering to 1800 metres.

Thursday 24 January

Few showers

A few early showers, then becoming fine. Westerlies turning southerly.

Freezing level  Rising to 2600 metres.


Fiordland National Park

Today - Sunday 20 January

Issued at: 6:36am Sunday

Windy

Periods of rain, possibly heavy in the afternoon. Gale westerlies, severe gale about the tops at times.

Freezing level 1900m

Tomorrow - Monday 21

Windy

Rain, turning to showers in the evening. Snow to 1400 metres. Gale westerlies.

Freezing level 1600m

Tuesday 22 January

Windy

Periods of rain, with possibly heavy falls later. Gale northwesterlies, severe in exposed places.

Freezing level 3000m

Wednesday 23 January

Windy

Rain, possibly heavy, easing at night. Snow lowering to 1000 metres. Northwest gales, easing later.

Freezing level  Lowering to 1500 metres but 1300 metres in the south.

Thursday 24 January

Few showers

A few showers, becoming fine in the afternoon. Westerlies turning southwest.

Freezing level  Rising to 2500 metres in the north and 1400 metres in the south.


Southland Forecast

Issued at: 4:48am 20 Jan

SUNDAY

20 JAN

Partly cloudy. Occasional showers about the coast but rain everywhere for a time in the afternoon. Strong westerlies, gale gusting 120 km/h about the coast in the morning.

MONDAY

21 JAN

Showers, becoming confined to the coast in the afternoon with fine spells increasing elsewhere. Strong westerlies, gale about the coast.

TUESDAY

22 JAN

A few showers about Stewart Island and the coast, but fine inland. Westerlies, strong or gale about the coast and Stewart Island.

WEDNESDAY

23 JAN

Occasional rain developing, easing at night. Strong westerlies changing southwesterly.

THURSDAY

24 JAN

A few showers, clearing later. Southwesterlies, easing later.

FRIDAY

25 JAN

Rain. Westerlies.


Foveaux

Valid to Midnight Sunday 20 Jan

Issued at 4:42am Sunday 20 Jan

Forecast:

Westerly 55 knots, easing to 45 knots this morning,and to 35 knots this evening. High sea, easing.Southwest swell rising to 5 metres for a time.Northeast swell rising to 3 metres for a time.Poor visibility in rain this afternoon and evening.

Three Day Outlook:

Westerly 35 knots, easing late Monday 25 knots, then rising late Tuesday northwest 35 knots. Changing overnight Tuesday southwest 25 knots, easing for a time early Wednesday southwest 15 knots. Very rough sea at times. Heavy westerly swell,easing Wednesday.

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