Written by TFM on 18/08/2020
|La Niña Alert|
| Issued: Tuesday, 18 August 2020|
Today the Bureau announced Australia is three times more likely than normal to experience a La Niña event within the next few months.
La Niña, one of several climate drivers that influence our weather, typically brings increased rain across much of Australia, more tropical cyclones, earlier monsoon onset and warmer overnight temperatures in the north.
The last La Niña period in Australia occurred from 2010 to 2012. During La Niña it’s typical for the Top End to receive above-average rainfall early in the wet season, and slightly above average rainfall later in the wet season. The Bureau will provide wet season forecasts as we get closer to the start of the wet season on 1 October. The week ahead
A rinse and repeat pattern has set in across the Territory so far this month. Troughs moving through southern districts have been bringing in warm air as they arrive and leaving behind cold air as they leave. As these winds make their way north the Top End feels the drier air until a mix of easterly winds and sea breezes dial up the moisture and humidity levels and a new trough starts the cycle again.
We’re expecting another burst of dry air through the Top End this weekend, which will drop the humidity levels, but also make it hotter, with maximum temperatures forecast to reach 34°C.
Severe fire weather warnings for the Darwin and Adelaide River district are likely from Monday next week.
It reached 32.8°C in Alice Springs yesterday, a touch hotter than Darwin (32.6°C) and well above the monthly average maximum temperature of 23.1°C.
From tomorrow Alice Springs’ maximum temperatures are forecast to drop to the low 20s, with overnight lows in the mid-single digits before the arrival of another trough begins warming things up again this weekend.