Severe Weather Criteria
Detailed Severe Weather Assessments Across New Zealand
We use a meticulous approach to understanding the diverse climatic conditions prevalent across different regions of New Zealand. Our team of seasoned forecasters diligently conducts comprehensive region-by-region assessments to evaluate the potential impact of impending severe weather events.
For instance, we recognize that the Westland Region is accustomed to enduring persistent and heavy rain, whereas Christchurch typically experiences distinct weather patterns. Taking this into account, a rainfall of 125-150mm over 24 hours would have a limited disruptive effect on the West Coast but could lead to substantial flooding further east. Our assessments consider various factors, including soil moisture, enabling us to fine-tune the risk levels. In this scenario the West Coast would see an enhanced risk of signficant rain. Conversely, our assessment would indicate a high confidence of impactful weather in Christchurch during the same weather event.
This tailored approach ensures that our risk determinations are finely tuned to the specific conditions of each region, providing accurate and detailed forecasts customized to the unique needs of every area.
Date: 02/11/2024
Risk levels are colour-coded to indicate the severity of potential impacts and are tailored to reflect the specific weather conditions in a given location. These color codes play a crucial role in informing and preparing the community for potential localised weather effects.
Slight Risk: Under 30% chance of impactful severe weather inside the highlighted area. This is indicated using the colour yellow.
Enhanced Risk: 30-50% chance of impactful severe weather inside the highlighted area. This is indicated using the colour orange.
High Risk: 50-70% chance of impactful severe weather inside the highlighted area. This is indicated using the colour Red.
Critical Risk: When there is at least a 70% confidence of significant weather impacts. A critical risk is only issued during the most significant weather events. This is indicated using the colour Purple.