Advarsler, Mount Hamilton

Heavy Rain Warning - Orange Area: Headwaters of the Canterbury lakes and rivers south of the Hurunui River Forecast: Expect 250 to 300 mm of rain about the main divide, and 120 to 170 mm within 15 km farther east. Peak rates of 20 to 30 mm/h expected Saturday about the divide. Freezing level about 2600 metres. Impact: Streams and rivers may rise rapidly. Surface flooding, slips, and difficult driving conditions possible. Chance of upgrading to a Red Warning: Minimal. Impact: Action: Clear your drains and gutters to prepare for heavy rain. Avoid low-lying areas and drive cautiously.

Strong Wind Warning - Orange Area: Canterbury High Country Forecast: Severe gale northwest winds gusting 130 km/h in exposed places. Impact: Damage to trees, powerlines, and unsecured structures possible. Driving may be difficult, especially for high-sided vehicles and motorcycles. Chance of upgrading to a Red Warning: Low. Impact: Action: Prepare your property by securing items that can be picked up by strong winds. Drive cautiously.