Home / Weather News /

Eye on the sky - A sky lover's guide to thunderstorms

17:00
19 May 2022

Eye on the sky
A sky lover’s guide to thunderstorms

WeatherRadar for Friday 20th MayWeatherRadar for Friday 20th May. Click to explore more!

With a threat of some thunderstorms in the forecast, particularly in Ireland, we thought we would take this opportunity to create a visual guide of what you might spot in the sky tomorrow.

Cumulonimbus

Cumulonimbus storm clouds erupt from smaller, fair-weather cumulus clouds, and even alone can produce some pretty spectacular structures.

Another type of cloud associated with thunderstorms, though more rare, are mammatus clouds. These are a child of cumulonimbus clouds and though seemingly ominous, could be indicative of both past or impending severe weather.

Keep your eyes peeled for an explainer piece on mammatus clouds tomorrow.

Lightning

Whilst you won’t want to be in close proximity to lightning, given their dangerous nature, watching the sky light up safely from afar is a treat not to be missed.

Lightning is naturally more visible at night, but storms that develop at night tend to become ‘elevated’, meaning they form higher up in the atmosphere, where it is warmer than at the surface.

These elevated storms tend to be more intense as they create stronger downdrafts further from the surface.

As consequence, these storms tend to produce a greater number of cloud to ground lightning strikes, though tomorrow’s look to be more of a daytime feature.

Rainbows

But it’s not just menacing features to keep an eye out for during a thunderstorm; with the harshness of nature also comes raw beauty.

Rainbows often follow a spell of sunshine and showers, and form when sunlight is scattered through water droplets.

This light is then reflected and refracted, creating a rainbow as the light exits the droplets.

It’s not just sunshine that needs to be present, plenty of other conditions need to align, including the angle of the sun in the sky, the position of the sun in relation to the viewer, and of course the presence of water droplets.

So, keep your eyes on the sky tomorrow, especially if you're in Ireland! And don't forget to share your shots with us here.

Weather & Radar editorial team
More on the topic
Temperature map showing maximum values at the beginning of next week and wind radar showing a storm system over the Atlantic that is directing mild air towards Europe
Thursday, 4 December 2025

Gusty in the UK & Ireland

Storms will soon bring spring air
The image shows the ruins of a house on the left and the weather radar with thunderstorms over Sumatra on the right.
Wednesday, 3 December 2025

Heavy monsoon rain

Flood disaster on Sumatra
Shooting stars, part of the Geminid meteor shower.
Saturday, 13 December 2025

Spot a shooting star

King of meteor showers at its peak
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
Wednesday, 27 August 2025

Breakfast brief

Frontal system brings heavy rain
plit image showing a double rainbow over a rocky shoreline on the left and sheep grazing in a green field under stormy clouds on the right.
Sunday, 2 November 2025

Your weather - Your shots

Mixed conditions on an unsettled week
All articles
Weather & Radar

Weather & Radar is also available on

Google Play StoreApp Store

Company

Contact us Privacy Policy Legal info Accessibility statement

Services

Uploader

Socials

facebooktwittertikToklinkList