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Canterbury High Country Regional Forecast

Friday 17 SEPTEMBER

partly-sunny

Mostly cloudy, with occasional fine spells, more widespread about the Mackenzie Country and Interior. Light southerly winds. Areas of frosts developing overnight. Incoming high pressure.

Wind at 1000 Metres

hc-wind
10-15km/hr southerlies.

Wind at 2000 Metres

hc-wind
15-25km southerlies.

Free Air Freezing Level

hc-freezing
Around 800-900m, rising to 1200m in the Mackenzie Country this afternoon.

Key Considerations & Hazard Advice

Key Considerations and Hazard Advice

Conditions gradually clearing this evening. Possible ice overnight about our higher passes and roads through the Interior. Low freezing levels.

Updated: 4:29 pm Fri, 17 Sep 21

Saturday 18 SEPTEMBER

partly-sunny

Early frosts, then mostly fine about the eastern ranges and hills, with cloudy periods. Cloud developing about the Main Divide & Headwaters, with showers developing in the morning, falling as snow to 1200m about Arthur's Pass National Park. Nor-westerlies building at night.

Wind at 1000 Metres

hc-wind
15-20km/hr nor-westerlies developing.

Wind at 2000 Metres

hc-wind
20-30km/hr nor-westerlies developing.

Free Air Freezing Level

hc-freezing
Rising to around 1700m in the east and around 1400m about the Main Divide/Headwaters.

Key Considerations & Hazard Advice

Key Considerations and Hazard Advice

Settled weather. A great day to hit the slopes, before the winds arrive on Sunday. Watch for rain and snow about the Main Divide - mostly Arthur's Pass National Park.

Updated: 4:29 pm Fri, 17 Sep 21

Sunday 19 SEPTEMBER

wind

Mostly fine in the east, with sunny skies and variable high cloud. Late spill over showers may reach the eastern ranges. Showers about the Main Divide & Canterbury Headwaters, turning to heavier rain by evening, falling as snow to around 1500m about Mt Cook & Arthur's Pass National Park. Strong nor-westerlies, gales about the ranges at higher elevations

Wind at 1000 Metres

hc-wind
30-50km/hr nor-westerlies building through the day,

Wind at 2000 Metres

hc-wind
50-80km/nor-westerlies building through the day.

Free Air Freezing Level

hc-freezing
Freezing Level: around 1900m in the west, rising to 2300m in the east.

Key Considerations & Hazard Advice

Key Considerations and Hazard Advice

Nor-west flow builds - may impact ski fields from midday. Rain, falling as snow at higher elevations about Mt Cook & Arthur's Pass National Park.

Updated: 4:29 pm Fri, 17 Sep 21

Monday 20 SEPTEMBER

wind

Rain, with heavier falls developing about the Main Divide & Canterbury Headwaters during the afternoon. Snow above 1700m about the Mt Cook & Arthur's Pass National Park. Mostly fine in the east, with sunny skies and variable high cloud cover; risk of a few early brief showers. Strong to gale force NW winds.

Wind at 1000 Metres

hc-wind
50-70km/nor-westerlies.

Wind at 2000 Metres

hc-wind
70-90km/nor-westerlies.

Free Air Freezing Level

hc-freezing
Around 2200m in the west, rising to 2400m in the east.

Key Considerations & Hazard Advice

Key Considerations and Hazard Advice

Strong nor-west winds may impact ski fields; rain could be heavy about the Main Divide from midday- avoid recreational activities.

Updated: 4:29 pm Fri, 17 Sep 21

Tuesday 21 SEPTEMBER

wind

Heavy and significant rain about the Main Divide & Canterbury Headwaters, with totals possible exceeding 150mm. Snow above 1500m. Spill over falls reaching eastern areas. Gale nor-westerlies, building through the day day.

Wind at 1000 Metres

hc-wind
60-80km/hr nor-westerly winds.

Wind at 2000 Metres

hc-wind
80-120km/hr nor-westerly winds.

Free Air Freezing Level

hc-freezing
Around 2000m about the eastern ranges, lowering to 1800m in the west.

Key Considerations & Hazard Advice

Key Considerations and Hazard Advice

Strong wind and rain warnings possible by Sunday or Monday. 

Updated: 4:29 pm Fri, 17 Sep 21

All days (1-10) are moderated and produced by the Canterbury Weather Updates forecast team. We also have a range of high-country towns and villages, with more specific information.

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