Forecast: At 01:15 pm, MetService weather radar detected severe thunderstorms near AUCKLAND, OREWA, HELENSVILLE, KUMEU, WHENUAPAI, KAUKAPAKAPA, WOODHILL, DAIRY FLAT, PIHA, MURIWAI BEACH, PARAKAI, WAIMAUKU, SILVERDALE, COATESVILLE, RIVERHEAD, WAITAKERE and HUAPAI.
These severe thunderstorms are moving towards the southeast, and are expected to lie near AUCKLAND, OREWA, KUMEU, ALBANY, HENDERSON, MANUKAU HEADS, WHENUAPAI, DAIRY FLAT, PIHA, MURIWAI BEACH, WHANGAPARAOA, WAIMAUKU, SILVERDALE, BROWNS BAY, GREENHITHE, COATESVILLE, PAREMOREMO, BIRKENHEAD, HOBSONVILLE, RIVERHEAD, MASSEY, TE ATATU, WAITAKERE, SWANSON, GLENFIELD, WEST HARBOUR, RANUI, NORTH HARBOUR, HUAPAI, LONG BAY and TORBAY at 01:45 pm and near AUCKLAND, ALBANY, HENDERSON, AUCKLAND CITY, MANUKAU HEADS, NORTH SHORE, WHENUAPAI, AWHITU, DEVONPORT, TAKAPUNA, BROWNS BAY, GREENHITHE, BIRKENHEAD, PONSONBY, GREY LYNN, HOBSONVILLE, MILFORD, MASSEY, TE ATATU, SWANSON, MAIRANGI BAY, GLENFIELD, WEST HARBOUR, NEWMARKET, MT EDEN, MT ALBERT, MT ROSKILL, ONE TREE HILL, REMUERA, GLEN EDEN, AVONDALE, KELSTON, ONEHUNGA, TITIRANGI, RANUI, NORTH HARBOUR, TORBAY, ROTHESAY BAY and CASTOR BAY at 02:15 pm.
These thunderstorms are expected to be accompanied by torrential rain.
Torrential rain can cause surface and/or flash flooding about streams, gullies and urban areas, and make driving conditions extremely hazardous.