Heavy Rain Warning - Orange

Details

Expect 50 to 80 mm but 100 to 150 mm about the eastern hills and Hutt Valley. These amounts are in addition to the rain that has already fallen. Peak rates of 15 to 25 mm/h but 25 to 40 mm/h possible in localised places until tonight, especially in thunderstorms. Impact: Streams and rivers may rise rapidly. Surface flooding, slips, and difficult driving conditions possible. Chance of upgrading to a Red Warning: Moderate. Changes: Timing for onset of heavy rain brought forward.