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: 11:02am Saturday 17

A broad trough and associated cold fronts are moving up the country today, and is followed by a ridge over the South Island. The trough then moves off the top of the North Island tomorrow, while the ridge builds over the country.


Short Forecast

Issued: 1:25pm Saturday 17 Aug

Valid to: Midnight Sunday 18 Aug

Kapiti, Wellington and coastal Marlborough

Rain easing to occasional showers this afternoon, clearing later tomorrow.

Inland Marlborough, also Canterbury

Showers with snow to 400 metres, clearing Marlborough later today and Canterbury tomorrow morning.

Nelson, and Buller to Fiordland

Mostly fine. Remaining showers clearing this afternoon.

Otago and Southland

Isolated showers, clearing overnight. Fine tomorrow.


Extended Brief Forecast

Issued: 11:30am Saturday 17

Monday

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

Tuesday

South Island, rain developing in the west and north, possibly heavy, with snow to about 800 metres, and scattered falls spreading elsewhere.However, high cloud about the east coast regions. Gale northerlies possible.

Wednesday

South Island, rain in the north clearing, showers in the west easing, and mainly fine elsewhere.


Brief Mountain Forecast

Issued at 12:41pm Saturday 17

Valid to Midnight Sunday 18 Aug

South Island

Kahurangi and Nelson Lakes National Parks:

Remaining snow showers clearing this evening. Fine tomorrow.

Kaikoura ranges:

Snow showers, clearing tomorrow afternoon.

The Southern Alps:

Snow showers in the east easing, then clearing tonight.

Fiordland:

Becoming fine. Winds: Strong southerlies, dying out. Northerlies developing later tomorrow.

Freezing Level: About 900 metres.


Extended Mountain Forecast

Issued at: 1:33pm Saturday 17

South Island

Monday:

A few showers developing west of the Divide, turning to rain about Fiordland late. Snow to about 900 metres in the south. Northwesterlies rising to gale or severe gale.

Freezing Level: About 1100 metres.

Tuesday:

Rain developing everywhere, with heavy falls, easing in the south late. Snow lowering to about 600 metres in the south. Gale or severe gale northwesterlies, easing later.

Freezing Level: Rising to 1500 metres, then lowering to 800 metres in the south late.

Wednesday:

Rain in the north, clearing. Showers elsewhere becoming isolated. Snow to about 600 metres in the south at first. Northwesterlies, strong in exposed places, turning northeast at lower levels.

Freezing Level: About 1100 metres in the north sloping to 700 metres in the south.


Nelson Lakes National Park

Tomorrow - Sunday 18 August

Issued at: 1:19pm Saturday 17

Windy

Snow showers clearing by afternoon and fine spells developing. Strong or gale southeasterlies easing.

Freezing level 800m

Monday 19 August

Few showers

Cloudy periods and a few showers developing late in the day.

Freezing level 1200m

Tuesday 20 August

Windy

Showers turning to rain later, possibly heavy. Snow lowering to about 900 metres. Northerlies rising to gale or severe gale, changing westerly overnight.

Freezing level  About 1200 metres.

Wednesday 21 August

Showers

Rain, with snow to about 900 metres, easing to a few showers early. Westerlies, strong at first, turning northerly.

Freezing level  About 1100 metres.


Canterbury High Country

Tomorrow

Issued at 11:27am Saturday 17

Snow showers clearing in the afternoon and fine spells developing.

Wind at 1000 metres: A southerly 55 km/h easing to 30 km/h in the morning.

Wind at 2000 metres: A southerly gale 65 km/h easing 30 km/h in the morning.

Freezing level: Rising to 1200 metres.

Mon Aug 19

Mainly fine.

Wind at 1000 metres: Northwesterlies developing then rising to gale 65 km/h.

Wind at 2000 metres: Northwesterlies developing then rising to severe gale 90 km/h.

Freezing level: Rising to 1400 metres.

Tue Aug 20

Cloud increasing. Rain developing in the west, with heavy falls, and possible scattered falls further east. Snow to about 1000 metres. Severe gale northwesterlies, easing from the south later.

Wed Aug 21

Mainly fine, apart from some early rain about the Divide. Northwesterlies, strong in exposed places.


Westland Forecast

Issued at: 4:01pm 17 Aug

SUNDAY

18 AUG

Fine. Southeasterlies dying out in the morning.

MONDAY

19 AUG

Fine at first, cloud increasing in the evening with a few showers developing. Light winds at first but northerlies developing in the morning

TUESDAY

20 AUG

Showers, turning to rain, possibly heavy. Strong or gale northerlies, changing westerly late.

WEDNESDAY

21 AUG

Showers easing and becoming isolated. Westerlies turning northeasterly.

THURSDAY

22 AUG

Periods of rain. Northeasterlies turning northwest for a time.


Southern Lakes

Tomorrow

Issued at 4:55pm Saturday 17

Mainly fine.

Wind at 1000 metres: Changing southeast 30 km/h tending northwest in the evening.

Wind at 2000 metres: Changing southeast 45 km/h tending northwest in the evening.

Freezing level: Rising to 1200 metres.

Mon Aug 19

Cloud increasing and rain developing about the headwaters at night.

Wind at 1000 metres: Northwesterlies developing then rising to gale 65 km/h.

Wind at 2000 metres: Northwesterlies developing then rising to severe gale 90 km/h.

Freezing level: Rising to 1400 metres.

Tue Aug 20

Rain about the headwaters, with heavy falls, and scattered falls further east, easing later. Snow to about 800 metres. Severe gale northwesterlies, easing.

Wed Aug 21

Cloud, and showers about the Headwaters, clearing early, then mainly fine. Northwesterlies, strong about the tops at first.


Mt Aspiring National Park

Tomorrow - Sunday 18 August

Issued at: 1:19pm Saturday 17

Partly cloudy

Fine apart from evening cloud.

Freezing level 700m

Monday 19 August

Windy

A few showers turning to rain at night. Snow to 900 metres. Northwesterlies rising to gale, possibly severe about the summit.

Freezing level 1000m

Tuesday 20 August

Windy

Showers turning to rain for a time, heavy for a time. Snow lowering to 700 metres. Severe gale northwesterlies, easing.

Freezing level  About 1200 metres, lowering to 800 metres late.

Wednesday 21 August

Windy

Showers gradually clearing. Snow to about 600 metres at first. Westerlies, strong or gale about the tops, turning northerly.

Freezing level  700 metres, rising to 1000 metres.


Fiordland National Park

Tomorrow - Sunday 18 August

Issued at: 1:19pm Saturday 17

Partly cloudy

Fine apart from evening cloud.

Freezing level 1200m

Monday 19 August

Windy

A few showers turning to rain at night. Snow to 900 metres. Northerlies rising to gale or severe gale.

Freezing level 1200m

Tuesday 20 August

Windy

Rain, heavy for a time, easing to showers later. Snow lowering to 700 metres. Severe gale northerlies, changing westerly, gale about the south coast.

Freezing level  About 1200 metres, Lowering to 800 metres.

Wednesday 21 August

Windy

Showers gradually clearing, with snow to about 600 metres at first. Westerlies, turning northerly, winds strong or gale about the coast at times.

Freezing level  700 metres, rising to 1000 metres.


Southland Forecast

Issued at: 4:55pm 17 Aug

SUNDAY

18 AUG

Fine spells with a few coastal showers clearing early morning.Light winds at first, but northwesterlies developing in the afternoon.

MONDAY

19 AUG

Fine. Northwesterlies gradually strengthening.

TUESDAY

20 AUG

Cloud increasing. Rain developing about Stewart Island, with scattered falls elsewhere. Northerlies, strong in exposed places, turning westerly late, strong about the coast.

WEDNESDAY

21 AUG

Partly cloudy. A few showers about the coast and Stewart Island, clearing later. Westerlies turning southerly late.

THURSDAY

22 AUG

Cloud increasing with occasional rain developing. Easterlies tending southeast later.


Foveaux

Valid to Midnight Sunday 18 Aug

Issued at 4:42pm Saturday 17

Forecast:

Southerly 15 knots easing to variable 10 knots tonight. Northwest 15 knots developing Sunday morning. Sea slight. Southwest swell, 3 metres easing. Fair visibility in showers, clearing tonight.

Three Day Outlook:

Rising Monday afternoon northerly 25 knots, changing Tuesday westerly 25 knots,easing late Wednesday southeast 15 knots. Sea becoming rough for a time.Southwest swell becoming heavy for a time Wednesday. Moderate northeast swell in the east developing Tuesday, easing Wednesday.

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