A dozen aircraft and several police boats are continuing to search for a plane that went missing in the Northern Territory while carrying four people.
The plane left the Bullo River Station near the Eastern Kimberley region yesterday afternoon and was due to arrive a few hours later at Emkaytee airfield, south of Darwin.
On board were a 45-year-old man, his 53-year-old wife and their two children aged 12 and 15.
The Australian Maritime Safety Authority (AMSA) says the aircraft was last heard from when the pilot sent a radio message about bad weather.
"We received reports from the overnight search that the conditions were pretty bad," spokeswoman Jo Meehan said.
"They had quite low hanging cloud and was very poor visibility which did hamper overnight searches and we understand that there were storms in the Northern Territory yesterday."
Wet and blustery conditions hampered a search overnight, but Ms Meehan says conditions were improving earlier today.
"We understand the weather has improved slightly in the area, which is allowing us conduct our morning search," she said.
"We hope that it will remain that way for this afternoon's search as well."
Search and rescue crews have been searching an-1,800 square kilometre area between Cape Ford and Point Jenny.
The search area has been widened this afternoon with up to five fixed-wing aircraft and seven helicopters involved.
"We have a paramedic helicopter on standby from Tindal air station as well should we require any sort of first aid," Ms Meehan said.
"We'll be focusing on the area where the pilot was last heard from which is in the Cape Ford region.
"We will be doing both coastal and inland searches of Anson Bay so we might be using some surface vessels as well."
Staff at Bullo River Station are also helping in the search.
Emergency services are asking anyone who heard a low-flying aircraft or an aircraft in trouble between Port Keats and Anson Bay to contact police.
