🚨 Aurora Alert | 04/06/2026 @ 20:00 BST 🚨

💚 Potential for aurora from tonight and over the next couple of days!

💚Possibility of G3 geomagnetic storm today 4th – 5th June due to potential impacts from multiple CMEs

💚Large coronal hole high speed stream is now active at Earth

💚Potential for further activity due to highly active sunspot regions

Hi everyone, unfortunately last night didn't see any aurora activity for us here in the UK. However, things might be about to change due to several incoming CMEs that have been predicted to arrive at some time today or tomorrow.

The NOAA G3 (Strong) geomagnetic storm watch for 4th–5th June is still in place with potential for levels of activity to even reach G4 (Severe) levels!

This means we could see some nice auroral activity that might be able to cut through the perpetual twilight here at mid northern latitudes if everything falls into place. Let's keep our fingers crossed! 🤞

The main message is keep your hopes up but don't expect anything for certain!

A lot of things have to fall into place just right. Any activity will have to be very strong to cut through the bright twilight. Counter-intuitively to normal circumstances, being further South will actually improve your chances of seeing aurora at this time due to the effects of the perpetual twilight being less severe at lower latitudes.

If you do plan to head out tonight, your best chances (weather permitting) will be roughly around midnight to 1am when the skies are at their darkest.

As always we will be keeping an eye on the skies and stats and will do our best to keep you all updated on any developments. In the meantime charge your camera batteries and make plans for where you might go if we see any activity.

Make sure to follow this post to stay up to date with updates through the night, and if you want more information please read on…

Current Stats

EPAM readings are still showing a steady increase in proton levels — a good sign that we are due an incoming space weather event at any moment!

Solar wind speeds are at slightly elevated levels of around 425 km/s due to the effects of the Coronal Hole High Speed Stream from Coronal Hole 62.

Density is fairly low at the moment, hovering below 2 p/ccm. Hopefully this improves if and when we are hit by the incoming CMEs.

The strength of the IMF (Bt) has dropped a lot since our last update, fluctuating between 2–4 Bt. Again this will hopefully increase a lot if and when we see an impact.

The polarity of the solar wind (Bz) has unfortunately been mostly North — hopefully this flips if and when we have an impact.

All in all, everything is as expected now we have seen the high speed stream from CH62 arrive. EPAM readings are promising and hopefully this means we get a good impact at the right time!

Managing Expectations

It is worth keeping in mind that even though we have been forecast G3 geomagnetic storms, things sometimes end up different to the forecast.

The particles from the solar wind can fizzle out, they can miss us altogether, they can arrive during our hours of daylight, and they can arrive with the wrong polarity and not interact with our magnetic field.

There is also the Earth weather and the Moon to consider as well, plus at this time of year any auroral activity must also be strong enough to cut through the endless twilight.

Earth Weather

Looking at current weather forecasts it seems that tonight, the East coast is best with partially cloudy skies clearing out into the early morning. Unfortunately for those in the West it looks quite cloudy and you may be lucky to catch some gaps.

Please see the attached screenshots for a quick snapshot of cloud predictions for tonight.

However, as we all know, Earth weather forecasts are never 100% accurate and things can and do change, so it's worth heading out and checking your local skies in person.

Lunar Conditions & Endless Twilight

The Moon only just reached its full phase on the 31st of May and so is currently in its waning gibbous phase. This means that when the Moon is in the sky it will be quite bright and causing a lot of natural light pollution, making it harder to catch aurora.

Fortunately at this moment in time, the Moon isn't rising very high in the sky and rises at around 1am. This leaves a short window of moonless skies during the darker stage of twilight.

The other upside is that the Moon will rise slightly later and be slightly less illuminated each night from now.

At this time of year, due to the Earth's tilt and the Northern Hemisphere being tilted towards the Sun, we are experiencing endless summer twilight — the skies never reach true darkness, which makes it harder to catch an aurora display.

Counter-intuitively to normal circumstances where being further North is best for aurora chasing, those who are further South actually have a better chance of catching aurora due to the Northern horizon being darker at lower latitudes.

All of this being said, if the aurora is strong enough it can outshine the Moon and twilight, just like the incredible display we experienced in June last year. Let's keep our fingers crossed! 🤞

Follow Our Socials for Updates

If everything falls into place we could be treated to some nice aurora tonight and/or tomorrow night. Fingers crossed! 🤞

We will be keeping an eye on the skies and satellite data and will keep you all updated throughout the night.

Please follow our Facebook @astrodoguk for up-to-date and accurate aurora alerts — we always make sure to alert you if things are looking promising to give you the best chance possible of seeing and photographing the aurora yourselves. 😊💖

Wishing you good luck and clear skies. ✨️