Mountain Radio

Latest South Island Weather Forecast

This forecast was transmitted by ZKIB BASE this evening on our 7.30pm voice call  to all of our field sets located in the South Island and Stewart Island.


Situation Statement

Issued: 8:24am Thursday 19 Apr

A southwest flow over New Zealand eases today as a ridge builds over the north of the country. Meanwhile a front approaches the far south of the country.


Short Forecast

Issued: 1:39pm Thursday 19 Apr

Valid to: Midnight Friday

Nelson, Marlborough and Canterbury

Mostly fine. Westerly gales in exposed places about the high country. The odd shower possible about the Sounds tomorrow evening.

Buller and Westland

Occasional showers, some heavy tomorrow morning.

Fiordland

Rain or showers, some heavy.

Otago and Southland

Fine spells, but showers about coastal Southland and Clutha, spreading elsewhere for a time tonight, and again tomorrow evening. Westerly gales in exposed places.


Extended Brief Forecast

Issued: 11:11am Thursday

Saturday

South Island, Showers in the west, spreading into the east for a time. Gale northwesterlies in the east.

Sunday

South Island, showers in the south retreating to the coast, otherwise mainly fine with morning frosts.

Monday

South Island, Fine and frosty in the east, showers developing in the south and west, turning to rain in Fiordland. Gale westerlies in the far south.


Brief Mountain Forecast

Issued at 12:14pm Thursday

Valid to Midnight Friday 20 Apr

South Island

Kaikoura Ranges:

Fine.

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

Showers, some heavy tomorrow, with snow to 1700 metres about Mt Aspiring.

Fiordland mountains:

Heavy rain developing this evening with snow to 1600 metres, easing to showers tomorrow morning but returning in the evening, with snow to 1100 metres.

WINDS: Westerlies rising to severe gale in exposed places.

Freezing Level: 3000 metres in the north sloping to 2000 metres in the south. lowering to 1400 metres in the south.


Extended Mountain Forecast

Issued at: 1:12pm Thursday

South Island

Saturday:

Rain in the west, with showers turning to rain in the east. Snow lowering to 900 metres in the far south but 1200 metres about Canterbury. Severe gale westerlies tending southwest.

Freezing Level: Lowering to 1000 metres in the south but 2000 metres in the north.

Sunday:

Cloudy periods with isolated showers in the west, fine in the east. Gale or severe gale southwesterlies easing.

Freezing Level: Rising to 3000 metres in the west but 2000 metres in the far south.

Monday:

Cloud increasing with a few showers turning to rain later. Strong westerlies, rising to severe gale in the south.

Freezing Level: 3000 metres in the north, sloping to 2000 metres in the south.


Nelson Lakes National Park

Tomorrow - Friday 20 April

Issued at: 11:29am Thursday

Occasional showers, mainly in the evening. Gale westerlies, but severe gale in exposed places.

Freezing level 2600m

Saturday 21 April

A few showers. Gale westerlies.

Freezing level 2100m

Sunday 22 April

Showers with snow lowering to 1200 metres at first then gradually clearing to fine spells. Gale southwesterlies easing in the morning.

Freezing level  1400 metres rising above 3000 metres.

Monday 23 April

Cloudy periods and a few showers morning and night. Winds tending westerly.

Freezing level  About 3000 metres.


Canterbury High Country

Tomorrow

Issued at 11:13am Thursday

Occasional showers about the Divide becoming more frequent and heavier for a time in the morning. Fine with high cloud farther east.

Wind at 1000 metres: Westerly severe gale 90 km/h.

Wind at 2000 metres: Westerly severe gale 110 km/h.

Freezing level: 2200 metres in the south rising to 2800 metres in the north.

Sat Apr 21

Showers turning to rain in the afternoon, then easing at night.

Wind at 1000 metres: Westerly gale 65 km/h easing to 50 km/h in the evening/

Wind at 2000 metres: Westerly severe gale 100 km/h, changing southwest 40 km/h at night.

Freezing level: 2200 metres gradually lowering to 1400 metres.

Sun Apr 22

Chance early showers, otherwise fine with a frosty start. Gale southwesterlies easing.

Mon Apr 23

Fine with morning frosts. High cloud at night. Strong westerlies developing, gale at night.


Westland Forecast

Issued at: 3:22pm 19 Apr

FRIDAY

Showers, more frequent and possibly heavy in the morning. Westerlies.

SATURDAY

Showers, heavy at times, clearing from the south in the evening. Southwesterlies.

SUNDAY

Fine with isolated early showers. Southwesterlies.

MONDAY

Becoming cloudy, showers developing later. Southwesterlies.

TUESDAY

Showers, turning to rain for a time, then clearing later. Southwesterlies.


Southern Lakes

Tomorrow

Issued at 11:13am Thursday

Periods of rain about the Headwaters, and scattered falls farther east.

Wind at 1000 metres: Northwest gale 70 km/h.

Wind at 2000 metres: Northwest severe gale 85 km/h rising to 100 km/h in the evening.

Freezing level: About 2000 metres.

Sat Apr 21

Rain about the headwaters, showers spreading elsewhere.

Wind at 1000 metres: Southwest gale 65 km/h easing to southwest 40 km/h at night.

Wind at 2000 metres: Westerly severe gale 100 km/h turning southwest gale 65 km/h in the afternoon.

Freezing level: 1900 metres lowering to 1300 metres.

Sun Apr 22

Isolated morning showers, then fine. Gale or severe gale southwesterlies easing.

Mon Apr 23

Fine with morning frosts. Showers developing about the the headwaters, spreading elsewhere later. Westerlies rising to severe gale in exposed places.


Mt Aspiring National Park

Tomorrow - Friday 20 April

Issued at: 11:29am Thursday

Periods of rain, with snow down to 1700 metres in the morning. Severe gale westerlies.

Freezing level 1900m

Saturday 21 April

Rain, heavy at times, easing to showers in the evening, clearing at night. Gale westerlies, severe in exposed places.

Freezing level 1700m

Sunday 22 April

The odd early shower then fine. Snow to 1000 metres at first. Gale southwesterlies easing.

Freezing level  Gradually rising to 2700 metres.

Monday 23 April

Showers developing then turning to rain later, falling as snow to 1900 metres. Westerlies rising to gale in exposed places.

Freezing level  About 2200 metres.


Fiordland National Park

Tomorrow - Friday 20 April

Issued at: 11:29am

Periods of rain, with snow to 1500 metres in the north and lowering to 1100 in the south. Gale westerlies, severe about the tops.

Freezing level 1500m

Saturday 21 April

Rain, heavy at times, easing to showers evening. Gale westerlies.

Freezing level 1500m

Sunday 22 April

Showers in the south, fine spells in the north. Snow to 1000 metres at first. Gale southwesterlies easing.

Freezing level  Gradually rising to 2300 metres.

Monday 23 April

Showers becoming widespread, then turning to rain, falling as snow to 1800 metres. Westerlies rising to gale in exposed places.

Freezing level  About 2100 metres.


Southland Forecast

Issued at: 3:22pm 19 Apr

FRIDAY

20 APR

Showers, more frequent about the coast and heavy for a time in the evening. Strong westerlies, gale about the coast and in exposed places.

SATURDAY

21 APR

A period of rain before dawn, with heavy falls possible, easing to a few showers in the afternoon. Southwesterlies, gale about the coast.

SUNDAY

22 APR

Mostly cloudy, with showers retreating to the coast in the morning. Strong westerlies easing.

MONDAY

23 APR

Cloudy periods with showers about the coast, spreading elsewhere later. Westerlies, rising to gale about the coast.

TUESDAY

24 APR

Showers, retreating to the coast and fine spells developing inland. Strong westerlies easing.


Foveaux

Valid to Midnight Friday 20 Apr

Issued at 12:47pm Thursday

Forecast:

Westerly 45 knots, easing to 30 knots late evening. Rising to westerly 40 knots Friday morning. High sea, easing. Southwest swell rising to 4 metres. Easterly swell 1 metre, dying out. Poor visibility showers at times.

Three Day Outlook:

Changing late Saturday southwest 45 knots then easing Sunday southwest 30 knots. Turning early Monday westerly 25 knots and rising late Monday westerly 35 knots. Sea high at times. Heavy southwest swell, easing Monday.

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