Auckland’s rain warning has been reinstated after being cancelled earlier today by MetService as a slow moving low drifts down from the north.

It appears the heaviest rain will push across the north eastern side of the North Island.  The rain warnings have now been extended to include Hawkes Bay.

WeatherWatch.co.nz says the rain will be welcome by most but warns people should be aware of rising streams and rivers.

The heavy rain, coupled with such a large full moon, could create minor coastal flooding tonight reports WeatherWatch.co.nz.   Strong winds, lowering air pressure and high running streams and rivers later today could all contribute to minor coastal flooding.

WeatherWatch.co.nz says motorists on Auckland’s Nor’Western motorway – which was flooded in late January during king tides – should be aware of the risks of sea water potentially on the lanes tonight at high tide (which is around 9:30pm) and again tomorrow morning.

A repeat of the serious January coastal flooding is not expected tonight.

See below for the full list of rain warnings, issued by MetService as of 9pm MONDAY

Northland

Heavy Rain Warning, Areas Affected: The eastern hills of Northland 30 to 40mm of rain has already fallen up to 8pm Monday. A further 60 to 90mm is possible in the 6 hours from 8pm to 2am. Rainfall rates could reach 30 to 40mm per hour.

Auckland

Heavy Rain Warning, Areas Affected: Auckland Rain is expected to become heavy overnight. In the 7 hours from 8pm to 3am 60 to 100mm of rain is possible. Hourly rainfall rates could reach 30-40mm.

Coromandel

Heavy Rain Warning, Areas Affected: Coromandel Peninsula Over 50mm of rain has fallen over parts of the Coromandel Peninsula up to 8pm today. In the 14 hours from 8pm Monday to 10am Tuesday, expect a further 100 to 130mm of rain about the ranges, with 60 to 90mm elsewhere. Rainfall rates could reach 25 to 50mm per hour for a time overnight Monday.

Bay Of Plenty

Heavy Rain Warning, Areas Affected: Bay of Plenty Rain should become heavier overnight. In the 15 hours starting 9pm Monday, expect 100 to 150mm of rain about the ranges, with 70 to 100mm elsewhere. Heaviest falls are expected early Tuesday morning when rates could reach 30 to 40mm per hour, especially about the ranges. 

Rotorua

Heavy Rain Warning, Areas Affected: Bay of Plenty Rain should become heavier overnight. In the 15 hours starting 9pm Monday, expect 100 to 150mm of rain about the ranges, with 70 to 100mm elsewhere. Heaviest falls are expected early Tuesday morning when rates could reach 30 to 40mm per hour, especially about the ranges. 

Gisborne

Heavy Rain Warning, Areas Affected: Gisborne Over 100mm of rain has fallen over northern Gisborne up to 8pm this evening, but the rain there has temporarily eased and may ease for a few hours further south. However, further heavy rain is expected overnight and Tuesday morning. In the 16 hours from 8pm Monday to midday Tuesday, a further 100 to 120mm of rain is possible north of Tolaga Bay, with a further 70 to 100mm elsewhere. Heaviest falls are expected between midnight and 9am Tuesday morning when rates could reach 30 to 40mm per hour for a time.

Hawkes Bay

Heavy Rain Warning, Areas Affected: The ranges of Hawkes Bay Rain is expected to become heavy overnight. In the 16 hours from 8pm Monday to midday Tuesday, expect 80 to 100mm of rain. Peak intensities of 15 to 20mm expected Tuesday morning. Note, further heavy falls are possible north of Wairoa Tuesday evening.