SolarSteph 🌞
@stephyardley.bsky.social
Space Scientist, STFC Ermest Rutherford Fellow and Vice-Chancellor's Fellow @ Northumbria University.
stephyardley.com
stephyardley.com
AR 4274 is rotating back into Earth's firing line for the 3rd time! 🌍☀️ It's been busy throwing out eruptions while on the farside, along with other ARs keeping things lively. The recent M-class flare and latest data suggests it may still be quite complex 👀
#SpaceWeather
#SpaceWeather
November 30, 2025 at 11:33 AM
AR 4274 is rotating back into Earth's firing line for the 3rd time! 🌍☀️ It's been busy throwing out eruptions while on the farside, along with other ARs keeping things lively. The recent M-class flare and latest data suggests it may still be quite complex 👀
#SpaceWeather
#SpaceWeather
🚨 Here we go again! X4.05 flare detected from AR4274! 🚨 Although the active region is rotating towards the limb it continues to produce major flares. Proton flux measurements are also showing an increase. AR4274 keeps delivering!☀️
#SpaceWeather #StephsStormWatch #SolarFlare
#SpaceWeather #StephsStormWatch #SolarFlare
November 14, 2025 at 11:40 AM
🚨 Here we go again! X4.05 flare detected from AR4274! 🚨 Although the active region is rotating towards the limb it continues to produce major flares. Proton flux measurements are also showing an increase. AR4274 keeps delivering!☀️
#SpaceWeather #StephsStormWatch #SolarFlare
#SpaceWeather #StephsStormWatch #SolarFlare
Looks like Bz is northwards (although decreasing) so we may be in for disappointment tonight unless the situation changes. The weather is awful here and I have a 6am flight so I am signing off for tonight 🌧️👋
November 12, 2025 at 11:06 PM
Looks like Bz is northwards (although decreasing) so we may be in for disappointment tonight unless the situation changes. The weather is awful here and I have a 6am flight so I am signing off for tonight 🌧️👋
🚨Here we go‼️🚨 Looks like the third eruption could be just arriving at L1 🌞💨🛰️🌍 #SpaceWeather #Aurora #NorthernLights
November 12, 2025 at 7:28 PM
🚨Here we go‼️🚨 Looks like the third eruption could be just arriving at L1 🌞💨🛰️🌍 #SpaceWeather #Aurora #NorthernLights
There is now a G5 (extreme) geomagnetic storm watch in place (Met Office), we are waiting for the third eruption to arrive although, due to uncertainty in the propagation models it is unclear whether it will arrive today or tomorrow 🌞💨🌎👀 #SpaceWeather #Aurora #StephsStormWatch
November 12, 2025 at 12:33 PM
There is now a G5 (extreme) geomagnetic storm watch in place (Met Office), we are waiting for the third eruption to arrive although, due to uncertainty in the propagation models it is unclear whether it will arrive today or tomorrow 🌞💨🌎👀 #SpaceWeather #Aurora #StephsStormWatch
Improved dramatically for a brief time, maybe better luck tomorrow 😊 #SpaceWeather #Aurora #NorthernLights
November 12, 2025 at 2:55 AM
Improved dramatically for a brief time, maybe better luck tomorrow 😊 #SpaceWeather #Aurora #NorthernLights
November 12, 2025 at 2:00 AM
CME arrival!🎯 Real-time solar wind data from ACE at L1 showing the first CME from AR4274 is arriving.⚡
This is the start of a long geomagnetic storming period - aurora chasers, get ready! 👀🌌
#SpaceWeather #StephsStormWatch
This is the start of a long geomagnetic storming period - aurora chasers, get ready! 👀🌌
#SpaceWeather #StephsStormWatch
November 11, 2025 at 10:42 PM
CME arrival!🎯 Real-time solar wind data from ACE at L1 showing the first CME from AR4274 is arriving.⚡
This is the start of a long geomagnetic storming period - aurora chasers, get ready! 👀🌌
#SpaceWeather #StephsStormWatch
This is the start of a long geomagnetic storming period - aurora chasers, get ready! 👀🌌
#SpaceWeather #StephsStormWatch
I know everyone is excited about #SpaceWeather but...🎉 I've been shortlisted as a finalist for the Global Space Awards in the Science Breakthrough category! 516 nominations from 38 countries, what an honour! 🚀 This is recognition for my work with the #ESASolarOrbiter mission🛰️ #GlobalSpaceAwards
November 11, 2025 at 8:49 PM
I know everyone is excited about #SpaceWeather but...🎉 I've been shortlisted as a finalist for the Global Space Awards in the Science Breakthrough category! 516 nominations from 38 countries, what an honour! 🚀 This is recognition for my work with the #ESASolarOrbiter mission🛰️ #GlobalSpaceAwards
Here’s our one-two-three punch! 🥊 🥊🥊 According to the latest run of the HUXt model the third CME is expected to impact on 13th November at around 13 UT. This is going to be a tiring couple of days 😅 #SpaceWeather #StephsStormWatch
November 11, 2025 at 7:00 PM
Here’s our one-two-three punch! 🥊 🥊🥊 According to the latest run of the HUXt model the third CME is expected to impact on 13th November at around 13 UT. This is going to be a tiring couple of days 😅 #SpaceWeather #StephsStormWatch
Here’s our one-two-three punch! 🥊 🥊🥊 According to the latest run of the HUXt model the third CME is expected to impact on 13th November at around 13 UT. This is going to be a tiring couple of days 😅 #SpaceWeather #StephsStormWatch
November 11, 2025 at 6:59 PM
Here’s our one-two-three punch! 🥊 🥊🥊 According to the latest run of the HUXt model the third CME is expected to impact on 13th November at around 13 UT. This is going to be a tiring couple of days 😅 #SpaceWeather #StephsStormWatch
🚨Storm Watch Upgraded! 🚨 G4 (severe) geomagnetic storm watch now in place for 12th November. This is due to the predicted arrival of the third CME. Aurora likely visible further south across the UK (weather permitting)! 🌞💨🌍 #SpaceWeather #StephsStormWatch
November 11, 2025 at 5:22 PM
🚨Storm Watch Upgraded! 🚨 G4 (severe) geomagnetic storm watch now in place for 12th November. This is due to the predicted arrival of the third CME. Aurora likely visible further south across the UK (weather permitting)! 🌞💨🌍 #SpaceWeather #StephsStormWatch
🚨 X5.1 FLARE from AR4274! 🚨
Active Region 4274 just unleashed an X5.1 solar flare - one of the strongest of the current solar cycle! ⚡The flare was associated with another full halo earth-directed CME ☀️ This AR keeps on giving!
#SpaceWeather #StephsStormWatch #SolarFlare
Active Region 4274 just unleashed an X5.1 solar flare - one of the strongest of the current solar cycle! ⚡The flare was associated with another full halo earth-directed CME ☀️ This AR keeps on giving!
#SpaceWeather #StephsStormWatch #SolarFlare
November 11, 2025 at 12:49 PM
🚨 X5.1 FLARE from AR4274! 🚨
Active Region 4274 just unleashed an X5.1 solar flare - one of the strongest of the current solar cycle! ⚡The flare was associated with another full halo earth-directed CME ☀️ This AR keeps on giving!
#SpaceWeather #StephsStormWatch #SolarFlare
Active Region 4274 just unleashed an X5.1 solar flare - one of the strongest of the current solar cycle! ⚡The flare was associated with another full halo earth-directed CME ☀️ This AR keeps on giving!
#SpaceWeather #StephsStormWatch #SolarFlare
🚨 G3 (strong) geomagnetic storm watch in effect from 18:00 UT tonight! 🚨 Two Earth-directed CMEs from AR4274 arriving late Tues/Wed⚡Aurora visible across north UK with clear skies, potentially extending further south 🌌 #SpaceWeather #StephsStormWatch #Aurora weather.metoffice.gov.uk/specialist-f...
November 11, 2025 at 10:10 AM
🚨 G3 (strong) geomagnetic storm watch in effect from 18:00 UT tonight! 🚨 Two Earth-directed CMEs from AR4274 arriving late Tues/Wed⚡Aurora visible across north UK with clear skies, potentially extending further south 🌌 #SpaceWeather #StephsStormWatch #Aurora weather.metoffice.gov.uk/specialist-f...
📊 Latest HUXt forecast shows 2 CMEs from AR4274 arriving on 12 Nov at ~4 & 15UT respectively. AR4274 is delivering a one-two punch!⚡️🥊 G2+ storm conditions increasingly likely. Aurora prospects strong for northern UK despite poor weather forecast.
#SpaceWeather #StephsStormWatch
#SpaceWeather #StephsStormWatch
November 10, 2025 at 4:40 PM
📊 Latest HUXt forecast shows 2 CMEs from AR4274 arriving on 12 Nov at ~4 & 15UT respectively. AR4274 is delivering a one-two punch!⚡️🥊 G2+ storm conditions increasingly likely. Aurora prospects strong for northern UK despite poor weather forecast.
#SpaceWeather #StephsStormWatch
#SpaceWeather #StephsStormWatch
Now that we have the coronagraph data from GOES/CCOR I can now confirm that the CME is a full halo, which means it is Earth-directed. This increases the chances of a stronger geomagnetic storm and impressive aurora displays. Stay tuned! 🌞💥💨🌎 #SpaceWeather #StephsStormWatch
November 10, 2025 at 12:45 PM
Now that we have the coronagraph data from GOES/CCOR I can now confirm that the CME is a full halo, which means it is Earth-directed. This increases the chances of a stronger geomagnetic storm and impressive aurora displays. Stay tuned! 🌞💥💨🌎 #SpaceWeather #StephsStormWatch
🚨 AR4274 just fired off another X-class flare! ⚡
CME confirmed, main bulk doesn't appear Earth-directed, though it's difficult to determine atm. If AR4274 keeps this up... are we heading for a situation similar to May 2024? Keep watching 👀
#SpaceWeather #StephsStormWatch
CME confirmed, main bulk doesn't appear Earth-directed, though it's difficult to determine atm. If AR4274 keeps this up... are we heading for a situation similar to May 2024? Keep watching 👀
#SpaceWeather #StephsStormWatch
November 10, 2025 at 11:25 AM
🚨 AR4274 just fired off another X-class flare! ⚡
CME confirmed, main bulk doesn't appear Earth-directed, though it's difficult to determine atm. If AR4274 keeps this up... are we heading for a situation similar to May 2024? Keep watching 👀
#SpaceWeather #StephsStormWatch
CME confirmed, main bulk doesn't appear Earth-directed, though it's difficult to determine atm. If AR4274 keeps this up... are we heading for a situation similar to May 2024? Keep watching 👀
#SpaceWeather #StephsStormWatch
The HUXt model forecasts a direct hit but at a slightly later time of 12th Nov ~3:30 UT. Weather forecast still looks bad... 🫣
November 10, 2025 at 9:19 AM
The HUXt model forecasts a direct hit but at a slightly later time of 12th Nov ~3:30 UT. Weather forecast still looks bad... 🫣
Reposted by SolarSteph 🌞
Arrival expected on Tuesday night, fingers crossed the weather improves as it’s been awful recently 🤞🌧️
A #solarstorm with an initial speed of ~730 km/s is on its way toward Earth! It’s associated with an X1.7-class flare that peaked today around 07:35 UTC.
The CME is expected to arrive Tuesday, 11 November, around 20:00 UTC (21:00 CET).
Let’s hope for a better aurora show than on Friday🤞🌌
The CME is expected to arrive Tuesday, 11 November, around 20:00 UTC (21:00 CET).
Let’s hope for a better aurora show than on Friday🤞🌌
November 9, 2025 at 5:25 PM
Arrival expected on Tuesday night, fingers crossed the weather improves as it’s been awful recently 🤞🌧️
The X1.8 flare from AR4274 did produce a CME! While the bulk of the eruption appears to be propagating northwest, there is likely an Earth-directed component 🌍 Waiting for the models to understand propagation & arrival ⚡
#SpaceWeather #CME #StephsStormWatch
#SpaceWeather #CME #StephsStormWatch
November 9, 2025 at 1:06 PM
The X1.8 flare from AR4274 did produce a CME! While the bulk of the eruption appears to be propagating northwest, there is likely an Earth-directed component 🌍 Waiting for the models to understand propagation & arrival ⚡
#SpaceWeather #CME #StephsStormWatch
#SpaceWeather #CME #StephsStormWatch
🚨 What we have been waiting for. AR 4274 just unleashed an X1.8 solar flare! 💥 We will have to wait and check the data to see if this beast erupted and if there's an Earth-directed CME heading our way 🌞💨🌍
Updates to follow!
#SpaceWeather #SolarFlare #StephsStormWatch
Updates to follow!
#SpaceWeather #SolarFlare #StephsStormWatch
November 9, 2025 at 12:56 PM
🚨 What we have been waiting for. AR 4274 just unleashed an X1.8 solar flare! 💥 We will have to wait and check the data to see if this beast erupted and if there's an Earth-directed CME heading our way 🌞💨🌍
Updates to follow!
#SpaceWeather #SolarFlare #StephsStormWatch
Updates to follow!
#SpaceWeather #SolarFlare #StephsStormWatch
Fast solar wind from a coronal hole 🌪️ is driving G1 (minor) geomagnetic storming conditions over the coming days. An eruption from the adjacent active region will deliver a glancing blow 10 Nov, escalating to G2 (moderate) conditions🌞💨
#SpaceWeather #GeomagneticStorm
#SpaceWeather #GeomagneticStorm
November 8, 2025 at 5:48 PM
Fast solar wind from a coronal hole 🌪️ is driving G1 (minor) geomagnetic storming conditions over the coming days. An eruption from the adjacent active region will deliver a glancing blow 10 Nov, escalating to G2 (moderate) conditions🌞💨
#SpaceWeather #GeomagneticStorm
#SpaceWeather #GeomagneticStorm
☀️ Mark your calendars! ☀️
ESPM-18 (European Solar Physics Meeting)
📍 Wrocław, Poland 🇵🇱
📅 6-10 September 2027
Looking forward to seeing the solar and heliospheric physics community there! 🔬✨
#SolarPhysics #ESPM18 #SpaceWeather #Astrophysics
ESPM-18 (European Solar Physics Meeting)
📍 Wrocław, Poland 🇵🇱
📅 6-10 September 2027
Looking forward to seeing the solar and heliospheric physics community there! 🔬✨
#SolarPhysics #ESPM18 #SpaceWeather #Astrophysics
November 7, 2025 at 4:18 PM
☀️ Mark your calendars! ☀️
ESPM-18 (European Solar Physics Meeting)
📍 Wrocław, Poland 🇵🇱
📅 6-10 September 2027
Looking forward to seeing the solar and heliospheric physics community there! 🔬✨
#SolarPhysics #ESPM18 #SpaceWeather #Astrophysics
ESPM-18 (European Solar Physics Meeting)
📍 Wrocław, Poland 🇵🇱
📅 6-10 September 2027
Looking forward to seeing the solar and heliospheric physics community there! 🔬✨
#SolarPhysics #ESPM18 #SpaceWeather #Astrophysics
G3 (strong) geomagnetic storm watch! Multiple solar eruptions from AR 4274 are delivering glancing blows to Earth, combined with fast solar wind. Aurora possible across Scotland and potentially further south (cloud permitting) with the best chance on Friday morning.🌞💨
November 6, 2025 at 8:03 PM
G3 (strong) geomagnetic storm watch! Multiple solar eruptions from AR 4274 are delivering glancing blows to Earth, combined with fast solar wind. Aurora possible across Scotland and potentially further south (cloud permitting) with the best chance on Friday morning.🌞💨