White Island. File photo / supplied

White Island. File photo / supplied

Orange flashes are lighting up Bay of Plenty skies tonight as White Island continues to erupt.
Ash from the volcano has drifted as far as Tauranga's coastline, and has coated homes and cars along Papamoa beach.
GNS Science volcanologist Mike Rosenberg told the Herald the crater lake on White Island was drying out, which was causing less water to be pulled into the ash cloud. That was creating static which was being discharged as lightening.
"We're getting reports of big orange plumes and all sorts. It's a natural, typical phenomenon in ash cloud. It is not a sign of increasing activity, it doesn't mean there's been a big eruption ... it's blowing at the same intensity as it has been over the last few days.''
Authorities had been monitoring the volcano, which is about 51km north of Opotiki, since a series of eruptions began this week.
Scientists flew over the island for the first time today and confirmed it was erupting.
Black ash was rising up to 3000m above the active vent on the southwest corner of the crater.
It was the first ash emission from White Island since February 2001 and represented the start of a new phase of volcanic activity at White Island, GNS said.
Volcanologist Brad Scott said visitors to the uninhabited island were now at the highest level of risk since the end of the 2001 eruptions. Explosive eruptions could happen at any time with little or no warning.

White Island is the little dot on the map north of Whakatane.

 Papamoa (mentioned above) is on the coast at Tauranga.