Among those major arterial closures are:

• The Newell Highway between Moree and the Queensland border. Thjis will be re-examined tomorrow morning.

• The Carnavon Highway between Mungindi and Moree.

• The Gwydir Highway between Moree and Collarenebri and about 20 kilometres east of Moree.

• The Kamilaroi Highway between Narrabri and Wee Waa.

• The Kamilaroi Highway is closed between Gunnedah and Boggabri.

• Thunderbolts Way near Emu Crossing at Bundarra is closed in both directions.

• The Oxley Highway is closed between Carroll and Gunnedah.

At Bingara, tragedy struck when a three-year-old boy drowned after he was swept into a stormwater drain near his home on Saturday afternoon.