Source: Bureau of Meteorology

For people in parts of Arnhem district.

Issued at 4:56 pm Saturday, 25 December 2021.

STRENGTHENING MONSOON ACROSS THE NORTHERN TOP END

Weather Situation: The monsoon is strengthening across the northern Top End as a tropical low deepens northwest of Darwin. The monsoon trough is expected to move inland from the coast tonight.

The tropical low is expected to strengthen as it moves southwards, and may reach tropical cyclone intensity southwest of Darwin on Sunday - a Tropical Cyclone Advice is current for this system, which describes the impacts over the Tiwi Islands and Daly District.

HEAVY RAINFALL which may lead to FLASH FLOODING is expected to continue into Sunday across the northern coastal areas of the Arnhem District, extending southwards to Cooinda during Sunday. 24 hour rainfall totals of 100-200 mm are possible.

DAMAGING WINDS with gusts of up to 100 km/h with monsoonal squalls may develop about the coast from this evening.

These conditions may extend further east and south across the Arnhem District on Monday.

A Flood Watch is also current for parts of the Top End.

For more information on weather warnings in the Northern Territory refer to http://www.bom.gov.au/nt/warnings/.

Locations which may be affected include Jabiru, Maningrida, Milingimbi, Galiwinku, Warruwi, Cooinda and Gunbalanya.

Rainfall observed since 9am Saturday:

113mm at Milingimbi

105mm at Maningrida.

The Northern Territory Emergency Service advises that people should:
* secure loose outside objects and seek shelter when conditions deteriorate
* pull over if it is raining heavily and you cannot see, park with your hazard lights on until the rain clears
* avoid driving into water of unknown depth and current
* create your own sandbags if there is flooding, by using pillow cases or shopping bags filled with sand and place them around doorways to protect your home
* stay away from flooded drains, rivers, streams and waterways
* ensure pets and animals are safe
* be prepared in case of power outages, have an emergency kit with a radio, torch, spare batteries and first aid kit
* for emergency help in floods, storms and cyclones, contact the NTES on 132 500. For more safety tips visit www.securent.nt.gov.au