Issued at 8:20am 21/04/2026

Valid from 8:20am 21/04/2026 to Midnight 21/04/2026

A trough crosses Northland and Auckland during the afternoon, bringing a moderate risk of thunderstorms then and during the early evening, as indicated on the chart. A low risk precedes the trough during the morning, mainly about western coastal areas. Any thunderstorms that occur will generate localised heavy rain, 10 to 25 mm per hour. In the east of the North Island, a front moves slowly northwards, generating showers and a band of rain. There is an associated low risk of embedded thunderstorms for northern Hawke's Bay, eastern Bay of Plenty and Gisborne. There is minimal risk of thunderstorms or significant convection elsewhere during Tuesday.

Issued at 7:43pm 21/04/2026

Valid from Midnight 21/04/2026 to Midday 22/04/2026

A northward moving front brings a low risk of thunderstorms to parts of Hawke's Bay and Gisborne/Tairawhiti during the morning, as indicated on the chart. However, for Mahia Peninsula and adjacent offshore areas, the risk is considered moderate before dawn. Any thunderstorms that occur will generate localised heavy rain (up to 25 mm per hour) and possibly small hail. There is minimal risk of thunderstorms or significant convection elsewhere during the first half of Wednesday.

Issued at 10:12am 21/04/2026

Valid from Midday 22/04/2026 to Midnight 22/04/2026

There is minimal risk of thunderstorms or significant convection during this period.