Yesterday’s moderately-sized (M8-class) #SolarFlare produced a massive eruption (a... coronal mass ejection), currently en route to Earth. Forecasters have issued a ‘severe’ geomagnetic storm watch (G4 on G1-5 scale). Expect to see misinformation about this, so here are some facts:show more

Yesterday’s near X-class #SolarFlare (M9.75-class) produced a clear CME... and solar radiation storm (causing the fuzzy noise shown in the data). The CME is expected to arrive Monday, with a G2 geomagnetic storm currently predicted. #spaceweather #astronomyshow more

X1.8 Solar Flare - Big Coronal Mass Ejection of... Plasma Impact to earth is expected Friday/Saturday, with strong geomagnetic storms predicted.show more

An incredible coronal mass ejection from the Sun with... Earth for scale. 📽: NASA​/​SDOshow more

A series of reoccurring coronal holes are starting their... rotation through Earth-center, and the trans-equatorial coronal hole will be geoeffective in ~5 days. Earth was in the high-speed solar wind from this coronal hole after a G2 geomagnetic storm for the M7.8 Philippines EQ.show more

Earth was hit by multiple CMEs triggering a G3-... geomagnetic storm last night, and we're now being buffeted by fast solar wind. More Earth-directed solar storms are racing towards Earth and are expected to impact in <12 hours now. I expect G3-G4 geomagnetic conditions, get ready!show more

G4 (Kp=8-) storm today, thanks to a strong southward... field that lasted almost 10 hours. This must have come from a CME. We (and NOAA Space Weather Prediction Center forecasters) identify the CME to be the one on April 13. This animation contains the CME and its low coronal manifestations.show more

A filament eruption has launched a CME in the... direction of Earth with impact around 2 UT on August 12 (Tuesday night) according to the latest NOAA ENLIL model showin below. NOAA SWPC has issued a G1/minor storm watch for August 12 UT day. We'll see what happens!show more

The Sun exploded off another powerful solar flare (6.5... M-class) today October 10th 2026. This struck right when a much stronger than expected (by most) solar storm hit Earth, and as I'm writing this we're now in a G3 strong geomagnetic storm, with the potential for G4 severe levels in the hours ahead...show more

Today a coronal mass ejection launched from the Sun... towards Earth and the northern flank is expected to impact us around July 28th. Here is the awesome visualizer used:show more

G5 GEOMAGNETIC STORM IGNITES NORTHERN LIGHTS ACROSS NORTHERN HEMISPHERE... The extreme G5 geomagnetic storm hit Earth at 6:54 pm EDT, bringing vivid Northern Lights to the Northern US, Canada, UK, Ireland, and Northern Europe. NOAA's Space Weather Prediction Center warns the storm could continue throughout the weekend due to additional coronal mass ejections en route. Source: NOAA, Vishal Verma, Travolax | Always Traveling, London Titan, Frank Haefnershow more

We have some significant sunspots now close to the... Sun's central meridian such that if there is a big flare & coronal mass ejection, it's likely to be Earth-directed. For three days now though solar x-ray flux has been normal at c-class levels. Maybe we get a big pop, maybe not...show more

Yesterday the Sun unleashed a powerful X1.9-class flare —... one of the strongest in recent times. 🔥 A massive cloud of plasma is already racing toward Earth. Latest calculations suggest the impact on our magnetosphere could hit today around midday. A strong G3–G4 geomagnetic storm is expected — bringing vivid auroras and possible disruptions to communications.show more

Happy #SunDay! This week’s space weather report includes: ·... 49 M-class flares · 3 X-class flares · 41 coronal mass ejections · 1 geomagnetic storm This video, from NOAA's GOES-R satellite, shows the week’s activity. More about flares & CMEs:show more

All eyes to the north tonight 👀 A Coronal... Mass Ejection is forecast to arrive on earth, potentially giving opportunities to see the Northern Lights. Strong auroral activity is possible in northern Scotland, but even southern England could catch a glimpse in any cloud breaks.show more

A Coronal Mass Ejection (CME) is expected to arrive... today, giving increased geomagnetic activity and potential Aurora sightings 🤩 The best chance of seeing the lights will be across Scotland where skies are clear and the Aurora is strongestshow more

A SOLAR TSUNAMI: We are expecting wave after wave... of coronal mass ejections to striking the Earth on 11th and 12th May. Solar wind speeds of about 800 km/s are possible. Strong and extended geomagnetic storms likely with aurora visible at lower-than-normal latitudes. Stay tuned.show more

Some of us could end Boxing Day with a... glistening sky display ✨ The aurora may be enhanced tonight due to a coronal hole high speed stream and a coronal mass ejection Northern Scotland, plus perhaps central and southern Scotland, may see the aurora in any clear intervalsshow more

NEW: A solar storm was launched from the Sun... yesterday and is on the way to Earth. NOAA has issued a Moderate Geomagnetic Storm Watch for Friday, October 9 due to anticipated arrival. Community consensus on the arrival of this CME is around the first half of the UTC day on Friday, but our in-house model has the storm arriving near Earth a bit later, closer to 15 UTC. Expected Kp range between 4 and 6. #spaceweathershow more

👀 You may see the northern lights this evening... and overnight due to a Coronal Mass Ejection Despite it's imminent arrival there's considerable uncertainty and it may only glance Earth. If it arrives, aurora could be spotted as far south as northern England if skies are clear.show more

A CME is a Coronal Mass Ejection by the... sun. This was triggered after 3IATLAS took its course around the sun.show more