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: 9:45am Tuesday 18 Dec

A ridge over the North Island recedes northwards today, while an active trough and fronts move up the South Island. Strong northwesterlies precede this system and cooler southerlies follow.


Short Forecast

Issued: 1:26pm Tuesday 18 Dec

Valid to: Midnight Wednesday

Nelson and Marlborough

Mainly fine today. Scattered rain tomorrow.

Buller and Westland

Periods of rain with some heavy falls.

Canterbury and Otago

Scattered rain spreading north today, becoming persistent and widespread tomorrow.Northwest gales in exposed inland places until this evening.

Fiordland and Southland

A few showers, frequent for a time this evening and tonight. Mainly fine tomorrow.


Extended Brief Forecast

Issued: 11:06am Tuesday 18 Dec

Thursday

North of Taihape, a period of rain, then showers. Between Taihape and Christchurch, rain, possibly heavy, easing later. South of Christchurch, often cloudy with a few showers.

Friday

About the east coast of the South Island, a few showers turning to rain. Elsewhere, occasional showers.

Saturday

North of Taihape, periods of rain developing, possibly heavy and thundery. Elsewhere, occasional showers, mainly from afternoon.


Brief Mountain Forecast

Issued at 12:40pm Tuesday

Valid to Midnight Wednesday 19

South Island

Fiordland:

Cloudy with showers today. Becoming fine tomorrow morning.

Remaining South Island mountain areas:

Periods of rain with heavy falls. WINDS: Gale northwesterlies, but severe gale north of Mount Aspiring. Gradually easing and changing southeasterly about Fiordland this evening and elsewhere tomorrow.

Freezing Level:

Above 3500 metres, lowering to 2400 metres south of mount cook.


Extended Mountain Forecast

Issued at: 1:31pm Tuesday

South Island

Thursday:

North of Mt Cook, rain, possibly heavy, easing. Elsewhere, isolated showers. Winds mainly light.

Freezing Level: Rising to 2600 metres.

Friday:

Showers, mainly in the afternoon and evening. Snow possibly lowering to 2200 metres. Winds mainly light, but westerlies about the tops.

Freezing Level: Lowering to 1900 metres in the south.

Saturday:

Showers, mainly in the afternoon and evening. Snow possibly lowering to 1800 metres. Winds mainly light, but southwesterlies about the tops and about Fiordland National Park.

Freezing Level: 2600 metres in the north sloping to 1400 metres in the south.


Nelson Lakes National Park

Tomorrow - Wednesday

Issued at: 11:22am Tuesday

Rain

Rain, possibly heavy at times.

Freezing level 3000m

Thursday 20 December

Rain

Rain, possibly heavy at first, easing afternoon.

Freezing level 2500m

Friday 21 December

Showers

Showers. Westerlies developing.

Freezing level  Lowering to 2400 metres.

Saturday 22 December

Few showers

Showers, mainly in the afternoon. Westerlies dying out.

Freezing level  About 2500 metres.


Canterbury High Country

Tomorrow

Issued at 11:19am Tuesday

Rain, possibly heavy.

Wind at 1000 metres: Light.

Wind at 2000 metres: Light.

Freezing level: 3000 metres, lowering to 2400 metres in the afternoon and 2100 metres in the evening.

Thu Dec 20

Cloudy. Scattered morning rain, then a few showers about the divide from afternoon.

Wind at 1000 metres: Light.

Wind at 2000 metres: Light.

Freezing level: Rising to 2500 metres in the morning.

Fri Dec 21

Showers, mainly in the afternoon and evening. Snow possibly lowering to 2000 metres. Light winds, but westerlies developing about the tops.

Sat Dec 22

Showers, mainly in the afternoon and evening. Snow possibly lowering to 1400 metres in the south. Westerlies about the tops, but southeasterlies developing at lower levels.


Westland Forecast

Issued at: 5:37pm 18 Dec

WEDNESDAY

19 DEC

A few morning showers, then periods of rain from afternoon, possibly heavy at times. Northeasterlies.

THURSDAY

20 DEC

Rain, easing in the morning to a few showers. Easterly dying out in the afternoon.

FRIDAY

21 DEC

Showers. Southwesterlies developing.

SATURDAY

22 DEC

Cloudy periods and isolated showers. Southwesterlies.

SUNDAY

23 DEC

Mainly fine, but isolated afternoon showers inland. Southwest breezes.


Southern Lakes

Tomorrow

Issued at 11:19am Tuesday

A rainy day.

Wind at 1000 metres: Light.

Wind at 2000 metres: Light.

Freezing level: Lowering to 2700 metres in the morning, and to 2500 metres in the evening.

Thu Dec 20

Cloudy periods and isolated showers.

Wind at 1000 metres: Light.

Wind at 2000 metres: Light.

Freezing level: 2500 metres.

Fri Dec 21

Showers, mainly in the afternoon and evening. Snow possibly lowering to 2000 metres late. Light winds, but westerlies about the tops.

Sat Dec 22

Showers, mainly in the afternoon and evening. Snow possibly lowering to 1500 metres. Light winds, but westerlies about the tops.


Mt Aspiring National Park

Tomorrow - Wednesday

Issued at: 11:22am Tuesday

Rain

Rain, possibly heavy, with snow lowering to 2200 metres.

Freezing level 2800m

Thursday 20 December

Few showers

Cloudy periods and a few showers.

Freezing level 2700m

Friday 21 December

Few showers

A few showers. Light winds, but westerlies about the tops.

Freezing level  Lowering to 2100 metres.

Saturday 22 December

Few showers

A few showers, mainly in the afternoon. Light winds, but westerlies about the tops.

Freezing level  About 2100 metres.


Fiordland National Park

Tomorrow - Wednesday

Issued at: 11:22am Tuesday

Showers

Scattered rain, clearing afternoon.

Freezing level 2800m

Thursday 20 December

Partly cloudy

Cloudy periods.

Freezing level 2700m

Friday 21 December

Few showers

A few showers. Southerlies developing.

Freezing level  Lowering to 1800 metres.

Saturday 22 December

Few showers

A few showers. Southwesterlies.

Freezing level  Lowering to 1500 metres.


Southland Forecast

Issued at: 5:37pm 18 Dec

WEDNESDAY

19 DEC

Increasing fine spells. Southeasterlies.

THURSDAY

20 DEC

Cloudy periods. Easterlies dying out.

FRIDAY

21 DEC

Cloudy periods. A few showers, mainly inland in the afternoon and evening. Light winds, but southwesterlies developing late.

SATURDAY

22 DEC

A few showers, mainly in the morning. Southwesterlies.

SUNDAY

23 DEC

Cloudy periods and isolated showers. Southwesterlies turning northwest.


Foveaux

Valid to Midnight Wednesday

Issued at 4:42pm Tuesday

Forecast:

Southeast 25 knots, easing to 15 knots this evening.Southeast rising to 25 knots again about the Strait for a time Wednesday afternoon and evening.Rough sea at times.Southwest swell 2 metres,easing. Fair visibility in a few showers,clearing this evening.

Three Day Outlook:

Becoming Thursday evening variable 10 knots. Developing early Friday northwest 15 knots, changing late Friday southwest 20 knots, easing Saturday 10 knots. Southwest swell becoming moderate Saturday for a time.

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