South Island Weather Alert: Brace Yourselves for Wild Weather This Weekend!

Kiwis in the South Island, enjoy that sunshine while it lasts! A significant weather system is heading your way, bringing strong winds and heavy rain. MetService has issued orange heavy rain watches and strong wind warnings for much of the South Island and even Wellington, starting late Saturday and continuing through Sunday.

What’s Coming: A Deep Dive into the Weekend Weather

MetService meteorologist John Law warns of a dramatic shift. After a cold and frosty night, Saturday dawns with fine weather in the North Island. However, down south, things are about to change. Showers will push towards the western coast, followed by a substantial rain system moving up from the west. Expect heavy rain in Fiordland and Westland, coupled with strong winds on the eastern side of the Southern Alps, affecting Canterbury, Marlborough, and even Wellington.

Canterbury High Country: Prepare for Gale-Force Winds

The Canterbury High Country is expected to bear the brunt of the winds. Gusts could reach a staggering 140km/h in the most exposed areas. If you’re planning any outdoor activities, especially in elevated locations, reconsider your plans. Safety should be your top priority.

Pro Tip: Stay updated with the latest MetService forecasts. Conditions can change rapidly, so real-time information is crucial for making informed decisions.

Lightning Strikes: Mother Nature’s Power on Display

Adding to the weather drama, a MetService radar near Hokitika was struck by lightning, causing significant damage. The radome, the protective dome at the top of the tower, took a direct hit. While this is a setback, MetService assures the public that they have alternative tools, including satellite imagery, nearby radar sites, weather stations, and computer models, to maintain accurate forecasts and severe weather warnings.

Did you know? Lightning strikes are more common than you might think. Tall structures, like radar towers, are particularly vulnerable. Despite advancements in technology, predicting the exact location of a lightning strike remains a challenge.

Forecasting Amidst the Storm: Alternative Methods in Play

Even with the radar damage, MetService can still provide reliable forecasts by leveraging multiple data sources. This redundancy is essential for ensuring public safety during severe weather events. Satellite data offers a broad overview, while weather stations provide localized measurements. Computer models integrate these data points to create comprehensive weather predictions.

Check the latest MetService Warnings here.

Watches and Warnings: A Region-by-Region Breakdown

Here’s a detailed look at the watches and warnings in place:

• Strong Wind Warning (Orange):
  • Canterbury High Country: From 10pm Saturday to 3pm Sunday.
  • Fiordland: From 6pm Saturday to 6am Sunday.
• Heavy Rain Watch:
  • Fiordland (north of Doubtful Sound): From 10pm Saturday to 6am Sunday.
  • Tasman (northwest of Motueka), Buller, Spencer Mountains, and St Arnaud Range: From 7am to 9pm Sunday.
  • Richmond and Bryant ranges, Rai Valley: From midday to midnight Sunday.
  • Headwaters of the Canterbury lakes and rivers: From 3am to 3pm Sunday.
  • Ranges of the Westland District: From midnight to noon Sunday.
  • Headwaters of the Otago lakes and rivers: From 1am to 8am Sunday.
• Strong Wind Watch:
  • Wellington, Wairarapa (south of Greytown), Marlborough Sounds: From 2am to 10pm Sunday.
  • Marlborough (excluding the Sounds): From midnight to 6pm Sunday.
  • Canterbury Plains and Christchurch: From 3am to 3pm Sunday.
  • Queenstown Lakes, Central Otago, inland North Otago, Dunedin, and Clutha: From midnight Saturday to 9am Sunday.
  • Southland: From 11pm Saturday to 6am Sunday.

This is not just about inconvenience; these weather conditions can pose significant risks. High winds can damage property, disrupt power lines, and make driving hazardous. Heavy rain can cause flooding and landslides. Take these warnings seriously and plan accordingly.

Preparing for the Weather: Essential Tips

Being prepared can make all the difference. Here are some practical steps you can take:

• Secure loose objects around your property.
• Clear gutters and drains to prevent flooding.
• Have a supply of food, water, and essential medications.
• Charge your electronic devices and have a backup power source.
• Avoid unnecessary travel during the worst of the weather.

Reader Question: What are your go-to strategies for weathering a storm? Share your tips in the comments below!

FAQ: Weather Warning Edition

What is an Orange Strong Wind Warning?

It indicates that strong winds are expected, posing a risk to property and potentially causing disruptions. It’s a step below a Red Warning, but still requires vigilance.

What is a Heavy Rain Watch?

A Heavy Rain Watch means that conditions are favorable for heavy rain, and people should be aware and prepared for potential flooding.

How can I stay updated on the weather?

Regularly check the MetService website, listen to local radio broadcasts, or download a reliable weather app.

What should I do during a strong wind event?

Stay indoors, away from windows. Secure outdoor objects and avoid driving unless necessary.

Stay safe out there, South Island! Prepare for the incoming weather and keep an eye on the latest updates from MetService.

Want to learn more about staying safe during severe weather? Read our emergency preparedness guide.

Do you have any questions or comments about the upcoming weather event? Share them below!