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Ex-TC Jack brings welcome rain to WA

Ben Domensino, Saturday April 26, 2014 - 13:26 EST

The remnants of Tropical Cyclone Jack have brought the heaviest April rain in three decades to parts of the Pilbara, with more on the way.

Jack was not a cyclone for long, its lifespan only lasting a few days between the 19th and 22nd of April. The system managed to become a category three Severe Tropical Cyclone briefly, although could not maintain its structure as it moves south into unfavourable conditions.

Despite weakening further during this week, the remnants of Jack have been drawn over Western Australia within a low pressure trough, causing unseasonably heavy rain in some areas.

The western Pilbara saw the heaviest rain during the 24 hours to 9am today. Emu Creek recorded 53mm, the heaviest April fall since 1980 and more than three times the monthly average in a single day. Closer to the coast, Exmouth also saw the heaviest April rain in 34 years with 45mm in the gauge.

As the moisture-laden trough continues to move over the nation's west today, further heavy falls are likely from the eastern Pilbara down to the Central West. Falls of 15-30mm are expected with isolated totals of 50-100mm by 9am Sunday morning.

Perth will see showers develop this afternoon and should see more than 5mm, ending the longest April dry spell in 32 years. The city has failed to record more than 0.2mm for the last 25 days, the longest spell since 1982's completely dry April.

Showers will spread further inland on Sunday as the trough moves east ahead of a strong cold front.

In the wake of this front, Perth will see temperatures only reach the high teens on Monday and Tuesday. Over the next three days, Perth should see the most rain and coolest temperatures of the last six to seven months.

- Weatherzone

© Weatherzone 2014

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