Prosper in a dynamic world
Search

Wet week in WA as tropical moisture spreads south

 

Ex-Tropical Cyclone Charlotte is bringing some much-needed rain to parts of WA, with more potentially heavy falls on its way. Moisture associated with Ex-Tropical Cyclone Charlotte caused widespread showers across the western inland and parts of the western and southern coasts in WA on the weekend.  

The Wheat Belt saw the largest totals over the weekend with Kalannie recording 78mm in the 24 hours leading up to 9am on Sunday, March 27. This rain is set to continue this week as Charlotte lingers off the coast and another low pressure system develops to the south of Christmas Island, which will continue to feed tropical moisture over WA. 

Severe thunderstorms and heavy rainfall have already affected parts of the Central West District on Monday morning, March 28, with Carnamah East recording 20mm of rainfall in the 30 minutes leading up to 6:30am on Monday. The image below shows showers and Thunderstorms moving over the Central West on Monday Morning. 

 MicrosoftTeams-image (321)

Rain and thunderstorms will develop across a broad area of WA from Monday to Wednesday a tropical moisture feeds across the state. The map below shows the predicted accumulated rain over these three days combines. 

 MicrosoftTeams-image (320)

Looking further ahead, another tropical low may develop to the south of Christmas Island during the next 48 hours. The system is likely to track south to southeast and could come close to the Pilbara and Gascoyne coasts, increasing rainfall in this region later in the week.  

Most models are indicating that the low will remain below tropical cyclone strength, but it is still likely to enhance shower and storm activity in far northwest WA from Thursday. Warnings will be issued later in the week if this developing low is expected to cause severe weather in WA. For more information on Weatherzone’s tropical cyclone, heavy rainfall and thunderstorm forecasting, please contact us at apac.sales@dtn.com.

Latest news

Satisfy your weather obsession with these news headlines from around the nation, and the world.

Australia’s 2026-27 Tropical Cyclone Season: Late Start, Real Risk

Australia’s tropical cyclone season is officially underway, but we may not see much activity for few months yet.  The season runs from November to April, and for mining operators and businesses across northern Australia, 2026-27 is shaping up to be a season where the headline numbers and the real risk may not line up.  On […]

Positive IOD declared: Not a typical dry signal for Australia

A positive Indian Ocean Dipole is underway, but this one is unlikely to deliver the textbook dry spring and summer that businesses have come to expect from the pattern.  The Bureau of Meteorology officially declared a positive IOD on Tuesday, October 27, which typically like El Niño can cause drier and warmer conditions over parts of […]

Signs of a positive Indian Ocean Dipole, but it may not follow the textbook

Waters off Indonesia have cooled in recent weeks, an indication that a positive Indian Ocean Dipole (IOD) event could be developing. It’s an important climate driver for Australia, and it could shape rainfall and temperatures heading into summer, with flow-on effects for farmers, energy and other industries.  What is the Indian Ocean Dipole?  The IOD […]

1.3 million lightning strikes and a record September downpour: the storms testing WA’s Goldfields

Leonora, WA, had its wettest September day on record earlier this month. Three weeks later, more than 1.3 million lightning pulses were detected within 800 km of the town in 48 hours. Why is a stalled trough delivering storms to mining country, and what it could mean for operations?  The DTN Total Lightning Network detected […]