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 an Stewart Island.


Situation Statement

Issued: 1:47am Sunday 25 Jun

A low pressure system lies to the east of New Zealand, while extending a complex trough of low pressure back over the country. Several fronts embedded within this trough move onto the North Island this afternoon and then away to the east by early tomorrow. A weak ridge over the Tasman Sea follows, spreading onto the South Island this morning and then onto central regions this afternoon.


Short Forecast

Issued: 5:28am Sunday 25 Jun

Valid to: Midnight Sunday

Nelson

Fine, apart from brief showers this morning.

Buller and Westland

Rain, clearing this morning and becoming fine apart from isolated coastal showers north of Hokitika.

Canterbury

Rain, with snow falling to 600 metres, clearing from the south by midday and becoming fine.

Otago, Southland and Fiordland

Rain, with snow falling to 600 metres, clearing early and becoming fine this morning, apart from a few showers about Fiordland and coastal Southland.


Extended Brief Forecast

Issued: 11:21pm Saturday

Monday

South Island, rain spreading north in the west, with some heavy falls. Scattered rain developing in the east, though dry for northern Canterbury and Marlborough.

Tuesday

South Island, rain easing to a few showers in the west before clearing. Occasional rain in the east, clearing in the south.

Wednesday

South Island, fine or becoming fine in most places, but a few showers remaining about Canterbury and some coastal areas.


Brief Mountain Forecast

Issued at 4:29am Sunday 25 Jun

Valid to Midnight Sunday

South Island

Kaikoura ranges:

A few showers, clearing this afternoon.

Kahurangi and Nelson Lakes National Parks:

Isolated showers, turning to rain for a time this morning.

Southern Alps:

Rain clearing and becoming fine this morning.

Fiordland National Park:

A few showers.

WINDS: Westerlies or southwesterlies, strong in exposed places, turning northwest about Fiordland this evening.

Freezing Level: About 1400 metres, sloping to 800 metres in the south.


Extended Mountain Forecast

Issued at: 4:30am Sunday

South Island

Monday:

Rain spreading north to Arthurs Pass, with some heavy falls and snow lowering to 900 metres. A few showers further north. Northwesterlies rising to gale or severe gale.

Freezing Level: Rising to 1400 metres.

Tuesday:

Rain easing to a few showers, snow possibly down to 1000 metres for a time.Winds changing southerly.

Freezing Level: About 1400 metres.

Wednesday:

Becoming mainly fine, a few showers remain about Kahurangi National Park. Southerlies, dying out at lower levels.

Freezing Level: About 1400 metres.


Nelson Lakes National Park

Today - Sunday 25 June

Issued at: 7:48pm Saturday

A few morning showers, then becoming fine in the afternoon.

Freezing level 1300m

Tomorrow - Monday

Fine at first but cloud increasing in the afternoon.

Freezing level 1400m

Tuesday

Rain with snow to 1200 metres, clearing later. Strong northwest changing southeast.

Wednesday

Becoming fine. Light southeast.

Freezing level  Lowering to 1200 metres.

Thursday

Fine. Light winds.

Freezing level  About 1200 metres.


Canterbury High Country

Today

Issued at 10:36pm Saturday

Scattered rain, with snow down to 600 metres, clearing during the morning and becoming fine in the afternoon.

Wind at 1000 metres: Changing southwest 30 km/h in the morning, then dying out.

Wind at 2000 metres: Changing southerly 30 km/h in the morning, then dying out.

Freezing level: Lowering to 900 metres.

Tomorrow

Rain developing about the Main Divide later in the day, with snow falling to 1200 metres. Increasing high cloud elsewhere.

Wind at 1000 metres: Northwest rising to 50 km/h.

Wind at 2000 metres: Northwest rising to gale 65 km/h.

Freezing level: Rising to 1600 metres.

Tue Jun 27

Scattered rain, falling as snow above 800 metres. Strong northwest, changing lighter southerly.

Wed Jun 28

Morning and evening cloud, otherwise fine. Southwesterly.

Thu Jun 29

Partly cloudy, chance drizzle about the foothills. Light winds.


Westland Forecast

Issued at: 6:21am 25 Jun

SUNDAY

Rain easing to isolated showers early morning, then clearing south of Hokitika and becoming fine there. Southwesterlies dying out in the evening.

MONDAY

Cloud increasing and a few showers developing in the morning,turning to rain towards evening, with heavy falls possible south of Hokitika. Northeasterlies picking up.

TUESDAY

Rain easing to isolated showers, then clearing. Winds changing southwesterly.

WEDNESDAY

Becoming fine. Light winds.

THURSDAY

Fine with light winds.

FRIDAY

Rain with light winds.


Southern Lakes

Today

Issued at 10:36pm Saturday

Scattered rain falling as snow above 600 metres clearing early morning, then fine breaks increasing.

Wind at 1000 metres: Southwest 30 km/h dying out.

Wind at 2000 metres: Southwest 40 km/h dying out. Northerly 30 km/h developing at night.

Freezing level: About 1000 metres.

Tomorrow

Heavy rain developing about the headwaters, falling as snow above 1200 metres. Increasing high cloud further east, with a few spots of rain later.

Wind at 1000 metres: Northerly rising to 60 km/h, gusting 80 km/h in exposed places.

Wind at 2000 metres: Northerly rising to gale 80 km/h.

Freezing level: Rising to 1400 metres.

Tue Jun 27

Scattered showers, snow showers above 1000 metres, clearing later.Early change to southerlies.

Wed Jun 28

Becoming fine. Southerlies dying out.

Thu Jun 29

Partly cloudy. Light winds.


Mt Aspiring National Park

Today - Sunday 25 June

Issued at: 7:48pm Saturday

Early rain easing to fine spells with a few showers. Snow flurries above 800 metres.

Freezing level 800m

Tomorrow - Monday 26 June

Rain developing late morning, with heavy falls possible from afternoon. Snow to 800 metres. Northwesterly gales, rising to severe in exposed places in the evening.

Freezing level 1400m

Tuesday 27 June

Rain, with snow above 800 metres, clearing early and becoming fine. Severe gale northwest, changing lighter southerly early.

Wednesday 28 June

Mainly fine. Southerlies, dying out at low levels.

Freezing level  About 1000 metres.

Thursday 29 June

Fine. Light winds.

Freezing level  About 1000 metres.


Fiordland National Park

Today - Sunday 25 June

Issued at: 7:48pm Saturday

Fine spells, and a few showers with snow flurries to 700 metres.

Freezing level 900m

Tomorrow - Monday

Rain developing in the morning, with heavy falls from afternoon. Snow above 900 metres. Northwesterlies rising to gale in the morning, easing evening.

Freezing level 1400m

Tuesday

Rain, with snow down to 800 metres, easing to isolated showers early. Southwesterlies.

Wednesday

Becoming fine, but isolated showers south of the Lakes. Southerlies.

Freezing level  About 1200 metres.

Thursday

Fine. Northerlies developing.

Freezing level  About 1400 metres.


Southland Forecast

Issued at: 6:21am 25 Jun

SUNDAY

Showers retreating to the coast this morning and becoming fine inland, then remaining coastal showers clearing this evening. Westerlies, fresh about the coast, turning northerly from evening.

MONDAY

Fine and frosty at first, however, high cloud increasing. Scattered rain developing in the afternoon, easing to the odd shower at night. Northeasterlies freshening.

TUESDAY

Scattered showers clearing, returning later. Southerlies turn westerly.

WEDNESDAY

Cloudy periods and isolated showers. Light winds.

THURSDAY

Becoming fine. Northeast winds developing.

FRIDAY

Rain. Little wind.


Foveaux

Valid to Midnight Sunday

Issued at 4:42am Sunday

Forecast:

Westerly 25 knots, turning northwest 15 knots this evening. Rough sea easing. Southwest swell 3 metres offshore. Easterly swell 2 metres. Fair visibility in a few showers, clearing this evening.

Three Day Outlook:

Becoming Monday morning northeast 25 knots, changing Tuesday morning southwest 25 knots, easing later Tuesday variable 10 knots. Sea becoming rough for a time. Moderate southwest swell offshore, easing Monday but returning Tuesday. Moderate easterly swell.

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