Source: Bureau of Meteorology

For people in the Furneaux Islands, North West Coast and parts of the North East, East Coast and Central Plateau Forecast Districts.

Issued at 2:36 am Saturday, 20 May 2017.

A trough moving along eastern Australia is expected to extend over Tasmania on Saturday bringing rainfall throughout the state, with significant rainfall expected about northern Tasmania and the upper east coast.

HEAVY RAIN which may lead to FLASH FLOODING is likely about northwest Tasmania and the Furneaux Islands during Saturday morning and afternoon, and then is likely about northeast Tasmania on Saturday afternoon and evening.

24 hour totals of 40 to 80mm are likely in northwest and northeast Tasmania on Saturday, with isolated totals of 80 to 100mm possible with thunderstorms.

Wind gusts of 70 to 80km/h are also possible about the coast west of Devonport on Saturday morning.

Locations which may be affected include Devonport, Burnie, Smithton, Whitemark, St Helens and Bicheno.

50mm of Rainfall has been recorded at Flinders Island Airport, of which 45mm has fallen between 9pm last night and 2 am this morning, with 16mm reported at Cape Grim and 10mm at Smithton.

The State Emergency Service advises that people should:
* Supervise children closely.
* Check that family and neighbours are aware of warnings.
* Manage pets and livestock.
* Clear drains and gutters on premises prior to severe weather arriving.
* Do not walk, ride or drive through flood waters.
* Be prepared in case of power outages.
* Listen to the ABC radio or check for further advice.
* For emergency assistance contact the SES on 132500.