Source: Bureau of Meteorology
Issued at 3:01 am WST on Sunday 11 April 2021
Tropical Cyclone Seroja is moving towards the southeast. Dangerous weather expected to develop on the west coast from Sunday afternoon.
Minilya Roadhouse to Lancelin along the coast, extending to inland areas including Mount Magnet, Dalwallinu and Paynes Find.
Inland areas including Merrredin and Southern Cross.
Details of Tropical Cyclone Seroja at 2:00 am AWST:
Intensity: Category 2, sustained winds near the centre of 110 kilometres per hour with wind gusts to 155 kilometres per hour.
Location: within 55 kilometres of 22.4 degrees South 109.6 degrees East, estimated to be 500 kilometres west northwest of Carnarvon and 750 kilometres northwest of Kalbarri.
Movement: southeast at 24 kilometres per hour.
Tropical Cyclone Seroja is moving towards the southeast and approaching the west coast of WA.
Seroja is expected to intensify a little during Sunday, possibly reaching Severe Category 3 intensity as it accelerates southeastwards towards the coast. It is then forecast to weaken back to Category 2 before it crosses the coast.
The cyclone should weaken as it moves inland on Monday but is still likely to be causing gusty winds east and north of the track, and heavy rain close to the track, as it crosses over the south of the state.
GALES with gusts to 100 kilometres per hour are likely to develop in an area between Minilya Roadhouse and Kalbarri during Sunday afternoon, then extend further south towards Lancelin and inland into the southern Gascoyne and the Central Wheatbelt during Sunday evening and early on Monday morning.
DESTRUCTIVE WINDS with gusts to 150 kilometres per hour are forecast to occur close to the centre of Seroja as it moves across the coast and into adjacent inland parts. The most likely area to experience destructive wind gusts is on the coast between Geraldton and Denham. People near Denham may see gales as early as midday on Sunday, tending to as early as dusk further south near Geraldton. The most likely time for onset of gales winds is mid to late Sunday afternoon near Denham, and during Sunday evening or overnight near Kalbarri and Geraldton.
Seroja will be moving fast, so weather conditions will deteriorate rapidly as it approaches.
HEAVY TO INTENSE RAINFALL and FLASH FLOODING are likely close to the track of Seroja during Sunday and Monday.
ABNORMALLY HIGH TIDES could cause minor inundation at the coast between Coral Bay and Lancelin, increasing to SERIOUS FLOODING in the Denham and Shark Bay region and near Kalbarri. Dangerous surf and beach erosion is expected between Denham and Geraldton.
DFES advises of the following community alerts effective as of 6:00 PM Saturday:
YELLOW ALERT: People in or near Carnarvon to Kalbarri, not including Kalbarri townsite, need to take action and get ready to shelter from a cyclone.
BLUE ALERT: People in or near Cape Cuvier to Lancelin, including Cape Cuvier and Lancelin, and extending inland to include the Shires of Northampton, Chapman Valley, Morawa, Greater Geraldton, Mingenew, Three Springs, Perenjori and the townsites of Mullewa, Coorow and Carnamah need to prepare for cyclonic weather and organise an emergency kit including first aid kit, torch, portable radio, spare batteries, food and water.
ALL CLEAR: People in communities Coral Bay to Cape Cuvier are advised that wind and storm surge dangers have passed but you need to take care to avoid the dangers caused by damage.
People needing SES assistance can call 132 500. In a life-threatening situation call 000. For more safety tips visit www.emergency.wa.gov.au
Communities within the Yellow and Blue Alert areas above should listen for the next advice.
Current Tropical Cyclones
Source: Bureau of Meteorology