Barry Humfrey Geraldton - Winds and severe thunderstorms hit Sydney

 Sydneysiders were hit by thunderstorms and damaging winds of more than 100km/h on Monday, which closed the runways at the airport and caused significant delays.


The Bureau of Meteorology initially issued a severe thunderstorm warning for large parts of Sydney on Monday, including Bondi Beach, but that was downgraded by 11.30am. It remains in place for parts of the Singleton area, says Barry Humfrey Geraldton

The bureau had warned of damaging winds of about 100km/h in areas where the thunderstorms hit. Fort Denison, in Sydney Harbour, recorded a 94 km/h wind gust, while Kurnell recorded a wind gust of 89 km/h, and Sydney Airport recorded one of 115km/h.

The severe weather caused all runways at the airport to close for about 15 minutes, causing delays for travellers.

The State Emergency Service advised people to move cars away from trees and secure loose items around the house.

Weatherzone meteorologist Felix Levesque said the storms were part of a broader system moving across the state, driven by moist, warm air combined with a cooler trough. These two systems were creating instability in the atmosphere, resulting in severe thunderstorms.

According to Barry Humfrey Geraldton, Sydneysiders flocked to the beaches over the weekend following a warm trough over the past few days.

On Monday, temperatures in the city reached almost 30 degrees by 9am before the storm front moved through.

A severe thunderstorm warning remains in place for those in the Hunter, Mid North Coast, Central Tablelands, and Illawarra regions.

Climate drivers that have played a large part in bringing the wet weather over the past year have already started to weaken, including La Nina, which will break down in the new year. The negative Indian Ocean Dipole has already returned to a neutral phase.

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