Australia’s 2023-24 tropical cyclone season outlook
Australia’s tropical cyclone season will be affected by one of the strongest El Niño events in recent decades. So, how many tropical cyclones will Australia see this season? Australia’s official tropical cyclone season runs from November until April. While tropical cyclones can form in or near the Australian region at any time of year, […]
Hector the convector’s first appearance off Darwin this season
One of the world’s most consistent thunderstorms developed for the first time this season, signalling that the ‘build up’ across the north has begun. The image below shows the famous thunderstorm developing to Darwin’s north on Thursday afternoon. Image: Himawari satellite image at 3:15pm on Thursday, October 5. Nearly every afternoon the thunderstorm forms […]
Australia’s driest September on record, one of the hottest too
Australia has had its driest September on record, led by huge rainfall deficiencies in the Murray-Darling Basin. Most of the country was well above average for maximums too, with NSW, Victoria and WA setting new records. Rainfall Australia as a whole averaged a measly 4.8mm of rain during September, the lowest on record for September […]
Severe thunderstorms hitting eastern Australia
Thunderstorms have developed in southeast Qld and northeast NSW on Thursday, bringing a risk of heavy rainfall to the region. The storms are being triggered on a southerly change which is moving up the Qld coast on Thursday afternoon. The video below shows the storms moving slowly across the region. On Wednesday night, over half […]
Geraldton’s hottest September day in more than a century of records
It was Geraldton’s hottest September day in more than a century. Temperature records are being broken in WA today as a searing air mass spreads across the state’s north and west. A high pressure system centred over the Great Australian Bight is causing a pool of hot air to intensify over northwestern Australia, with temperatures […]
Positive Indian Ocean Dipole (IOD) strengthening
A positive Indian Ocean Dipole (IOD) event is gaining strength to the northwest of Australia, increasing the risk of hot and dry weather and fires in the coming months. What is the IOD? The IOD is an index that measures the difference in sea surface temperature anomalies between the western and eastern sides of the […]
Hail events increasing in some Australian cities
Hailstorms are one of Australia’s most costly natural disasters. New research suggests that they are becoming more frequent in some of Australia’s cities. What is hail? Hailstones are made of layers of ice which form in thunderstorm updraughts. Hailstones grow larger by colliding with other rain droplets and ice particles in the updraft, until they […]
Is this heatwave a sign of things to come this summer?
Spring has kicked off with a sweltering heatwave in Australia, with the mercury soaring well above average in many states and territories this week. So, is this abnormal early-season heatwave a sign of what’s to come this summer? What is a heatwave? In Australia, a heatwave is defined as three or more days of unusually high […]
68 NSW fires burning, 17 unconfined
The heatwave continues in New South Wales, with summer-like temperatures and summer-like fire danger. On Thursday morning, there were 68 bushfires burning, 17 of them uncontained, as dangerous winds pick up strength ahead of a southerly change due later on Wednesday. The NSW Rural Fire Service has declared a total fire ban in three regions: […]