The Department of Fire and Emergency Services issued an alert at 11.20am today to be prepared for possible flooding in Harvey and Murray River catchments in the Shire of Murray, Shire of Waroona and Shire of Harvey

Significant rainfall has occurred as a result of the storm causing water levels to rise and thunderstorm activity with local heavy falls is expected to continue today and into Thursday.

Although no roads are closed at the moment, motorists are advised be careful at crossings as floodways and river levels could rise rapidly if the rain continues.

Authorities are urging the public to take care on gravel and unsealed roads as they may be slippery and there is a risk of getting bogged, and carry extra food and water when travelling in case of long delays at crossings.

FESA advises to prepare to relocate equipment and livestock early so they are not caught in flood waters, prepare an emergency kit including enough canned food and water to last for four days and put fuel in the car.

If you are intending to travel, pack a relocation kit to be taken with your emergency kit.

You are reminded never to walk, swim or play in flood waters and not to park or camp adjacent to rivers.

For SES assistance call 132 500 or in a life threatening situation 000.