Home / Editor's Pick /

Hurricane season incoming: How do tropical storms form?

07:00
24 May 2023

Hurricane season incoming
How do tropical storms form?

Hurricane Ian over the South Carolina coast on 30th Sepember 2022.Hurricane Ian over the South Carolina coast on 30th Sepember 2022. - © NOAA via AP (picture alliance)

The Atlantic hurricane season is officially beginning on 1st June, but how do tropical systems form?

Tropical storms develop into Hurricanes, Typhoons, and Cyclones, depending on their location, but how do they initially form?

These types of storms require a lot of heat and usually form close to the equator, where sea temperatures are at least 26°C. Warm waters then heat the air above it, causing the air to rise rapidly. This is when it is often called a tropical wave.

As the air rises, it condenses into cumulonimbus clouds and if conditions are just right, the clouds start to spin, creating an intense area of low pressure.

This area will suck in the surrounding air causing very strong winds. Once the winds reach 39 mph, a tropical storm is formed.

As the winds continue to intensify, fed by the warm waters underneath, the tropical storm can intensify into a hurricane, cyclone, or typhoon. Once the storm moves over land, however, it starts to lose energy and fades away.

With excitement and energy ramping up in the Atlantic ahead of the season's start, track the tropics with our interactive WeatherRadar.

More on the topic
pinecones
Tuesday 7 October 2025

Did you know?

How pine cones aid the weather forecast
The image illustrates the effects of a severe storm system over north-western Europe: the map shows the weather situation with a storm warning, while the photo on the right shows actual storm damage – an indication of the danger posed by hurricane-force gusts and structural damage.
Monday 6 October 2025

Damage across Europe

Storm Amy's weekend impacts
Two typhoons are moving across the western Pacific Ocean towards Japan. Halong is located east of Tokyo and Nakri is south of Tokyo. The coloured areas indicate the intensity of the storm.
Thursday 9 October 2025

Busy in the Pacific

Tropical storms near the Japanese coast
All weather news
This might also interest you
Split weather map showing the UK and Ireland. The left side illustrates strong winds circulating around a low-pressure system, with gusts of 20–30 mph highlighted in orange and yellow. The right side shows radar imagery with widespread blue rain bands and patches of thunderstorms, especially over northern England and Scotland.
Thursday 28 August 2025

Breakfast brief

Remaining widely unsettled
Sunday 17 August 2025

Your weather - Your shots

Summer shots from a warm week
Monday 25 August 2025

Bank holiday outlook

Warm day turning gusty in places
All articles
Weather & Radar

www.weatherandradar.ie

facebooktwitteryouTubeContact uslinkList
Privacy Policy | Legal info | Accessibility statement