Source: Bureau of Meteorology
Issued at 6:09 pm WST on Saturday 10 April 2021
Seroja to produce dangerous weather on the west coast from Sunday afternoon.
Warning zone: Cape Cuvier to Geraldton.
Watch zone: Geraldton to Lancelin and inland areas including Mount Magnet, Paynes Find, Dalwallinu, Merrredin and Southern Cross.
Cancelled zone: Watch cancelled for the Kalgoorlie area.
Details of Tropical Cyclone Seroja at 5:00 pm AWST:
Intensity: Category 2, sustained winds near the centre of 100 kilometres per hour with wind gusts to 140 kilometres per hour.
Location: within 45 kilometres of 21.1 degrees South 108.0 degrees East, estimated to be 640 kilometres west of Exmouth and 970 kilometres northwest of Kalbarri.
Movement: south southeast at 7 kilometres per hour.
Tropical Cyclone Seroja is beginning to take a more south southeasterly track as it curves around towards the coast
Seroja is expected to intensify overnight, possibly reaching Severe Category 3 as it starts its southeastwards track towards the coast. During Sunday the system will accelerate towards the coast, and should weaken back to Category 2 before it crosses the coast.
The cyclone should gradually 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 Cape Cuvier and Kalbarri during Sunday afternoon, then extend further south towards Lancelin and inland into the southern Gascoyne and the Central Wheatbelt late Sunday and early on Monday morning.
DESTRUCTIVE WINDS with gusts to 150 kilometres per hour are forecast to occur closer 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, tending to as early as dusk further south near Geraldton. The most likely time for onset of gales winds is mid to late afternoon near Denham, and during the evening or overnight near 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:
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