West Australians warned against holding "cyclone parties" as state braces for 5 cyclones

Emergency services officials have warned West Australians against holding "cyclone parties" as the state braces for its worst hurricane season in a decade.

Experts have warned that Western Australia (WA) could be hit by as many as five tropical cyclones over the summer due to warm sea temperatures and a weak La Nina oscillation - a cold wind phase - in the Pacific Ocean.

Five cyclones in one season would make it the busiest season since the state was rocked by five in 1999, three of which were category-five storms where winds exceeded 200 kilometers per hour and another was rated category four.

Neil Bennett, from the Bureau of Meteorology (BOM), said that WA had experienced below-average cyclone and flood seasons in recent years with 2015 being the lowest-activity cyclone season ever recorded.

"This is going to be a more active season than we saw ... in the last four or five years," Bennett told Fairfax Media in comments published on Tuesday.

"Last year was the quietest on record with only one tropical cyclone making a crossing."

Graham Smith, assistant commissioner of the Department of Fire and Emergency Services (DFES), said that all West Australians should have an evacuation plan organized in case their region came under threat.

Smith warned people against hosting "cyclone parties," which have become popular in the state in recent years, saying they could exacerbate an already dangerous situation.

"We are urging the community to have a portable radio, their mobile phone charged and enough food and water to last them four days," Smith told Fairfax.

"Some people in the past have tended to take this opportunity to consume excessive amounts of alcohol and we ask people to be cautious.

"The last thing we want to be doing is being part of a major emergency and being influenced by intoxicating liquor."

The WA cyclone season will run from November 1 to April 30, 2017. Endit