Waiau River Mouth

Expect 200 to 250 mm of rain. During the same period 60 to 100 mm is likely in areas near the coast. Peak rates of 15 to 25 mm/h expected Monday night and during Tuesday morning and afternoon, especially about the ranges. Freezing level about 1600 metres and snow likely above 1200 metres. Impact: Dangerous river conditions, flooding, and slips likely. Dangerous driving conditions and road closures are expected. Chance of upgrading to a Red Warning: High. Changes: Event end time extended. Chance of upgrade increased to high.

Expect 110 to 150 mm of rain, especially about the foothills and high country region, and with 50 to 80 mm over the plains. Note this rain is expected to be falling as snow above 600 metres. Impact: Streams and rivers may rise rapidly. Surface flooding, slips, and difficult driving conditions possible. Chance of upgrading to a Red Warning: Moderate.

Expect a further 100 to 140 mm of rain, especially about the foothills and high country region. A further 50 to 80 mm possible over the plains during the same period. Note this rain is expected to be falling as snow above 600 metres. Impact: Streams and rivers may rise rapidly. Surface flooding, slips, and difficult driving conditions possible. Chance of upgrading to a Red Warning: Moderate. Changes: Event extended a few hours.