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: 12:19am Tuesday 17 Jul

A disturbed westerly flow over New Zealand eases today, as a weak ridge of high pressure spreads across much of the country from the west. A cold front then approaches the South Island from the Tasman Sea tomorrow night.


Short Forecast

Issued: 11:30pm Monday 16 Jul

Valid to: Midnight Tuesday 17 Jul

Nelson, Marlborough, Canterbury, Otago and Southland

Fine, apart from isolated showers in Southland until evening.

Buller and Westland

Showers becoming isolated this morning and fine spells increasing.

Fiordland

Occasional rain.


Extended Brief Forecast

Issued: 11:31pm Monday 16 Jul

Wednesday

South Island, Showers west of the Divide, mainly fine elsewhere.

Thursday

South Island, Rain west of the Divide, easing later. Partly cloudy elsewhere.

Friday

South Island, Rain west of the Divide, spreading north. Fine in the east, with increasing high cloud.


Brief Mountain Forecast

Issued at 4:22am Tuesday 17 Jul

Valid to Midnight Tuesday 17 Jul

South Island

Kaikoura ranges:

Fine.

Kahurangi and Nelson Lakes National Parks, and the Southern Alps:

Showers, becoming isolated this morning and fine breaks developing.

Mount Aspiring and Fiordland:

Occasional rain or showers. Snow above 1100 metres.

WINDS: Strong or gale northwesterlies, tending southwest and easing north of Fiordland this afternoon.

Freezing Level: About 1600 metres.


Extended Mountain Forecast

Issued at: 4:22am Tuesday 17 Jul

South Island

Wednesday:

A few showers about and west of the Main Divide, turning to rain later with snow to 1200 metres. Mainly fine elsewhere. Westerlies, rising to gale in exposed places.

Freezing Level: About 1600 metres.

Thursday:

Rain about and west of the Divide with snow to 1200 metres, clearing north of the glaciers but remaining cloudy. Partly cloudy elsewhere. Westerlies, gale in exposed places.

Freezing Level: About 1500 metres.

Friday:

West of the Divide, rain spreading north, with snow to 800 metres in the south at first, then clearing from the south. Cloudy elsewhere, with a few spots of rain. Westerlies, gale in exposed places.

Freezing Level: Rising to 2000 metres in the north but 1700 metres in the south.


Nelson Lakes National Park

Today - Tuesday 17 July

Issued at: 10:54pm Monday 16 Jul

Few showers

A few morning showers, then fine. Possibly gale westerlies in exposed places at first.

Freezing level 1500m

Tomorrow - Wednesday 18 July

Partly cloudy

Cloud gradually increasing. Showers developing late evening or at night, with light snow to 1300 metres.

Freezing level 1400m

Thursday 19 July

Rain

Rain with snow to 1200 metres, clearing evening but remaining cloudy. Westerlies, strong in exposed places.

Friday 20 July

Showers

Cloudy periods. Rain developing late, with snow to 1400 metres. Westerlies, strong in exposed places.

Freezing level  Rising to 2000 metres.

Saturday 21 July

Windy

Rain, possible heavy falls, and snow to 1400 metres. Northwesterlies rising to gale in exposed places.

Freezing level  About 2000 metres.


Canterbury High Country

Today

Issued at 10:48pm Monday 16 Jul

Fine for most. However, a few showers about the Divide until evening, with snow to 1200 metres.

Wind at 1000 metres: Light.

Wind at 2000 metres: Westerly 45 km/h, dying out in the afternoon.

Freezing level: 1400 metres about the Divide and 1800 metres elsewhere.

Tomorrow

Fine until afternoon, then isolated showers about the Divide and high cloud further east. Showers becoming more frequent in the evening with snow down to 1400 metres.

Wind at 1000 metres: Northwest 40 km/h developing in the evening.

Wind at 2000 metres: Northwest 40 km/h developing afternoon, rising to 55 km/h evening.

Freezing level: 1400 metres about the Divide and 1800 metres elsewhere.

Thu Jul 19

Partly cloudy. Rain about the Divide with snow to 1200 metres,clearing later. Northwesterlies.

Fri Jul 20

Partly cloudy. Rain developing later about the Divide, with snow to 1400 metres. Northwesterlies, becoming strong in exposed places.

Sat Jul 21

Cloudy. Rain about the Divide with possible heavy falls and snow to 1400 metres, clearing later. Northwesterlies, strong or gale in exposed places.


Westland Forecast

Issued at: 6:24am 17 Jul

TUESDAY

17 JUL

Showers easing in the morning, then clearing north of the Glaciers from afternoon with increasing fine spells. Light winds.

WEDNESDAY

18 JUL

Clouding over during the morning and showers becoming more frequent, then turning to rain south of the Glaciers early evening. Northerlies developing in the afternoon and picking up about the coast in the evening.

THURSDAY

19 JUL

Cloudy. Rain, clearing afternoon. Northerlies turn southwest early.

FRIDAY

20 JUL

Cloudy periods. Rain developing later as northerlies strengthen.

SATURDAY

21 JUL

Rain, possible heavy falls, clearing later as strong northerlies turn southwest.

SUNDAY

22 JUL

A few showers with little wind.


Southern Lakes

Today

Issued at 10:48pm Monday 16 Jul

Fine. However, showers about the headwaters with snow to 1300 metres.

Wind at 1000 metres: Northwest 30 km/h.

Wind at 2000 metres: Westerly 40 km/h.

Freezing level: About 1400 metres.

Tomorrow

Showers about the headwaters, then turning to rain in the evening and snow lowering to 1200 metres. High cloud increasing elsewhere, showers possible.

Wind at 1000 metres: Northerly 45 km/h developing afternoon, rising to 55 km/h evening .

Wind at 2000 metres: Northwest 50 km/h developing morning, then rising to gale 80 km/h in the afternoon, and possibly severe gale 90 km/h for a time in the evening.

Freezing level: About 1400 metres.

Thu Jul 19

Partly cloudy. Rain about the headwaters, with snow to 1200 metres for a time. Northwesterlies, strong in exposed places.

Fri Jul 20

Partly cloudy. Rain about the headwaters, with snow to 1400 metres. Northwesterlies, strong or gale in exposed places, easing later.

Sat Jul 21

Cloudy. Rain about the headwaters with possible heavy falls and snow to 1000 metres. Brief rain spreading elsewhere for a time, then clearing everywhere later. Westerlies.


Mt Aspiring National Park

Today - Tuesday 17 July

Issued at: 10:54pm Monday 16 Jul

Few showers

Showers, with snow to 1200 metres.

Freezing level 1300m

Tomorrow - Wednesday 18 July

Windy

Mostly cloudy with isolated showers, then rain from evening with snow to 1200 metres. Northwesterlies rising to gale in exposed places at night.

Freezing level 1400m

Thursday 19 July

Windy

Rain, with snow to 1000 metres at first. Westerlies, gale in exposed places.

Friday 20 July

Windy

Rain, possible heavy falls, and snow to 1200 metres. Northwesterlies rising to severe gale in exposed places.

Freezing level  Rising to 1800 metres.

Saturday 21 July

Windy

Rain, possible heavy falls and snow to 1000 metres at first, clearing later. Northwesterlies, severe gale in exposed places at first.

Freezing level  Lowering to 1500 metres.


Fiordland National Park

Today - Tuesday 17 July

Issued at: 10:54pm Monday 16 Jul

Rain

Occasional light rain, with snow to 1200 metres.

Freezing level 1300m

Tomorrow - Wednesday 18 July

Windy

Mostly cloudy with isolated showers, then rain from evening with snow to 1200 metres. Northerlies rising to gale in exposed places in the afternoon.

Freezing level 1500m

Thursday 19 July

Windy

Rain, with snow to 1000 metres at first. Westerlies, gale in exposed places.

Friday 20 July

Windy

Rain, possible heavy falls, and snow to 1200 metres. Northwesterlies rising to severe gale in exposed places.

Freezing level  Rising to 1700 metres.

Saturday 21 July

Windy

Rain, possible heavy falls and snow to 800 metres at first, clearing later. Northwesterlies, severe gale in exposed places at first.

Freezing level  Lowering to 1000 metres.


Southland Forecast

Issued at: 6:24am 17 Jul

TUESDAY

17 JUL

Fine for most. However, about and south of the coast, cloudy periods and isolated showers. Westerlies.

WEDNESDAY

18 JUL

Fine apart from evening high cloud for the mainland. However, about Stewart Island, cloudy periods and a few showers, less frequent from afternoon. Westerlies tending northerly in the morning, then strengthening in the evening.

THURSDAY

19 JUL

Partly cloudy, and a few showers about Stewart Island. Northwesterlies, strong about and south of the coast for a time.

FRIDAY

20 JUL

Fine at first. Becoming cloudy later, and rain developing about Stewart Island. Northwesterlies, strong about Stewart Island.

SATURDAY

21 JUL

Cloudy, with a brief period of rain. However, rain easing to showers about Stewart Island. Westerlies.

SUNDAY

22 JUL

One or two showers. Light winds.


Foveaux

Valid to Midnight Tuesday 17 Jul

Issued at 4:42am Tuesday 17 Jul

Forecast:

Northwest 25 knots. Sea rough.Northeast swell 2 metres east of Slope Point,easing. Southwest swell rising to 2 metres. Fair visibility in a few showers,easing this morning.

Three Day Outlook:

Tending Wednesday evening northeast 25 knots, becoming Thursday northwest 30 knots. Sea rough. Moderate northeast swell offshore easing Thursday. Moderate southwest swell developing Friday.

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