Prosper in a dynamic world
Search

Build-up reaching its crescendo in the tropics

 

Severe storms are flaring up in Kimberley and Top End as the build-up to the monsoon ramps up.

The build-up season is an unofficial season that generally runs between September and December in northern Australia. It is characterised by hot temperatures and building humidity. As the build-up continues, thunderstorms (especially in the afternoon) become a more regular occurrence. This activity reaches a peak just before the monsoon arrives, which brings heavy rain, storms, cooler temperatures and an increased chance of tropical cyclones.

20221117_Kimberley_storm

Image: Thunderstorms over northern Aus shown by the Total Lightning Network (WZTLN) and Weatherzone Oracle

Build-up thunderstorms are once again sparking up over northern Australia, with some of these storms being severe, producing damaging winds and heavy rain. As of 4pm ACST, there had already been over 250,000 strikes recorded over the Top End and Kimberley, with plenty of strikes still to come into the evening.

20221117_Kimberley_lightningImage: Lightning strikes within 800km of Lake Argyle recorded up to 4pm ACST Thursday 17th from the WZTLN

The coming week will see regular scattered-to-widespread thunderstorms occurring over the north each afternoon, with more thunderstorms also forming overnights and in the mornings. Some of these storms will likely be severe with damaging wind gusts and heavy rain possible. You can find the active warnings on our website here.

Over the next fortnight, thunderstorms look to become more of a regular occurrence over the coast just north of Australia as well. This is a tell-tale sign that the monsoon is not too far off and may be building early in December. During La Niña years, the monsoon tends to arrive earlier, usually in mid-December.

20221117_nwp-pcp-ecmwf-hres-168_au-nt_1920x1080Image: Rainfall expected over the next week from ECMWF

DTN APAC can provide access to our industry leading WZTLN and Oracle products so that your business can track thunderstorms, allowing you to safely and efficiently avoid their severe affects. To find out more, please email us at apac.sales@dtn.com.

Latest news

Satisfy your weather obsession with these news headlines from around the nation, and the world.

Habagat and successive typhoons trigger widespread flooding in the Philippines

Three consecutive weeks of enhanced southwest monsoon (Habagat) and back-to-back typhoons have flooded Luzon and the Visayas, grounding flights, triggering distribution power outages, cutting off transport corridors, and raising landslide risk across mining-dense provinces like Benguet and the Cordillera. The disruption is far from over with PAGASA expecting the monsoon to remain in place until […]

Australia’s Spring 2026 Bushfire Outlook: Increased Risk Across Seven States and Territories

Fire agencies, land managers and businesses are being urged to prepare as the AFAC spring seasonal bushfire outlook, released on August 19, 2026, warns of elevated bushfire risk across Australia this season. The outlook identifies above-average fire danger across seven states and territories, with conditions driven by a combination of elevated fuel loads, an El Niño […]

Businesses under pressure: how this powerful high will affect Australian industries

A very strong high pressure system centred over Tasmania will impact southern and eastern Australia’s weather over the coming days. How strong is this high pressure system? Mean Sea Level Pressure (MSLP) has already reached 1039.3 hPa at Ouse, Tasmania on Sunday morning, and is forecast to peak at 1041 or 1042 hPa on Monday […]

Northwest Cloudband looms despite sunny and dry outlook

A thick cloudband will stretch thousands of kilometres next week from the warm tropical waters off northwest Australia to southeastern Australia, bringing rain and low solar output despite a sunny, dry seasonal outlook.   The cloudy week may come as a surprise given the warm, dry, and sunny climate drivers currently in play – a very strong El Niño and a […]