Key Takeaways
- A severe thunderstorm watch has been issued for parts of Canterbury, including Christchurch, from 1:30pm to 9pm on Friday
- The watch warns of downpours, large hail, and thunderstorms, with a moderate risk of severe thunderstorms producing localized flooding and damage
- Wet and windy weather is expected to affect Otago and Southland, with showers and strong winds forecast for the entire weekend
- Snow is possible at higher levels around the southern regions overnight on Saturday
- The weather conditions may cause surface and flash flooding, slips, and damage to crops, orchards, and vehicles
Introduction to the Weather Warning
The North Island is still recovering from the devastating rain that hit the region in recent days, but now the South Island is bracing itself for its own bout of wild weather. MetService has issued a severe thunderstorm watch for parts of Canterbury, including Christchurch, which is set to be in effect from 1:30pm to 9pm on Friday. The watch covers not only Christchurch but also the Canterbury Plains and the Canterbury High Country, indicating that a wide area is at risk of being affected by the severe weather.
Severe Thunderstorm Watch Details
According to MetService, scattered showers and thunderstorms are forecast for inland and northern parts of Canterbury this afternoon and early evening, with Christchurch City also possibly being affected. The agency warns that there is a moderate risk of a few of these thunderstorms becoming severe, producing localized downpours of 25-40mm/h or large hail in excess of 2cm in diameter. This level of rainfall intensity could cause surface and/or flash flooding, especially in low-lying areas such as streams, rivers, or narrow valleys, and could also lead to slips. Furthermore, large hail can cause significant damage to crops, orchards, vines, glasshouses, and vehicles, as well as make driving conditions hazardous.
Wet and Windy Weather in Otago and Southland
Further south, wet and windy weather is headed for Otago and Southland, with MetService forecasting showers and strong, cool south-to-southwest winds to affect coastal areas of Southland, Clutha, and Dunedin over the weekend. The weather is expected to persist throughout the weekend, with overnight temperatures set to drop on Saturday, potentially leading to snowfall at higher levels around the southern regions. This could lead to hazardous driving conditions, especially on higher-level roads, and may also cause disruptions to outdoor activities and daily life.
Impact of the Weather
The severe thunderstorm watch and wet and windy weather forecast for the South Island are likely to have a significant impact on the region. The potential for localized flooding, slips, and damage to crops and infrastructure is a major concern, and residents are advised to stay informed and take necessary precautions to stay safe. The weather conditions may also cause disruptions to transportation, with road closures and flight delays possible. Additionally, the snowfall forecast for higher levels may lead to power outages and other disruptions to essential services.
Preparation and Safety
In light of the severe weather forecast, residents in the affected areas are advised to take necessary precautions to stay safe. This includes staying informed about the latest weather updates, having a plan in place in case of an emergency, and taking steps to protect property and infrastructure from potential damage. Drivers are also advised to exercise caution, especially on higher-level roads, and to check the weather forecast before embarking on any journeys. By being prepared and taking necessary precautions, residents can minimize the risks associated with the severe weather and stay safe until the conditions improve.
Conclusion
In conclusion, the South Island is bracing itself for a bout of wild weather, with a severe thunderstorm watch issued for parts of Canterbury and wet and windy weather forecast for Otago and Southland. The potential for localized flooding, slips, and damage to crops and infrastructure is a major concern, and residents are advised to stay informed and take necessary precautions to stay safe. By understanding the risks and taking steps to prepare, residents can minimize the impact of the severe weather and stay safe until the conditions improve.
