The agency warned very heavy rain could cause surface or flash flooding around streams, gullies and urban areas, and make driving conditions hazardous. Wairoa residents are urged to take shelter, secure loose items and avoid waterways.
A similar warning was placed on Gisborne after MetService weather radar detected severe thunderstorms near Gisborne, Waimata and Ormond.
At 3pm, MetService detected a line of severe thunderstorms lying from Otamarakau to Te Teko to Ōpōtiki and issued a severe thunderstorm warning for Ōpōtiki, Western Bay of Plenty and Whakatāne.
Meanwhile, Central Hawke’s Bay and Hastings were put under a severe thunderstorm warning, with thunderstorms expected to lie near Elsthorpe at 3.37pm and near offshore Central Hawke’s Bay and offshore southern Hawke’s Bay at 4.07pm.
The thunderstorms were expected to be accompanied by torrential rain, hail and frequent lightning.
Severe Thunderstorm Warning 🔴
Area: Central Hawkes Bay, Hastings
Forecast: At 02:15 pm, MetService weather radar detected severe thunderstorms near TIKOKINO, BRIDGE PA, MARAEKAKAHO, PAKIPAKI, TE HAUKE, PUKEHOU, POUKAWA and GWAVAS.
A severe thunderstorm watch remains in place for Bay of Plenty, Taupō, Gisborne and Hawke’s Bay until 7pm.
People in the watch area are advised rainfall of this intensity can cause surface or flash flooding in low-lying areas near streams, rivers or narrow valleys.
MetService said this weather could also trigger slips, while large hail may damage crops, glasshouses and vehicles, and make driving hazardous.
Elsewhere, two road snowfall warnings are in place for the South Island, both lasting into Saturday morning.
Severe thunderstorm warnings are in place for Gisborne and Wairoa. Image / MetService
The road snowfall warning on Crown Range Rd lasts for 20 hours from 3pm today to 11am tomorrow, with snow possible above 800m this afternoon.
MetService said little snow was expected to settle on the roads.
Milford Rd has a nine-hour road snowfall warning from 10pm to 7am tomorrow.
Snow showers are expected late on Friday, with 1-2cm possibly settling on the road above 800m.