Solar Flares Today
Live X-ray flux from NOAA GOES — the current solar flare class, updated every 60 seconds.
What's happening now
B6.8
What's expected next
3-Day Flare Probability
NOAA SWPC · M & X-class likelihood
FLARIENTToday's analysis
R1-R2 radio-blackout likelihood is 45% today, 45% tomorrow and 45% on day three; R3+ 5%/5%/5%. Low likelihood — a quiet flare regime.
Why it matters →
NOAA issues daily probabilities for M- and X-class flares from sunspot magnetic complexity and persistence. M-class flares cause minor R1–R2 radio fading; X-class can trigger R3+ planet-wide blackouts.
What this means for you
What is a solar flare?
A solar flare is a sudden, intense burst of X-ray and extreme ultraviolet radiation from a region of strong magnetic activity on the Sun — usually a sunspot complex. Flares are classified by their soft X-ray peak flux on a logarithmic scale (A, B, C, M, X), measured by NOAA's GOES satellites in geostationary orbit.
The radiation from a flare reaches Earth in about 8 minutes — the speed of light — and can immediately cause HF radio blackouts on the sunlit side of the planet. If the flare also launches a coronal mass ejection (CME), the plasma cloud takes 1–3 days to arrive and can trigger geomagnetic storms and aurora.
Flare Classes Explained
Quiet — no impact. Background solar activity.
Small — no significant effects. Common during solar minimum.
Minor — no immediate effects. Visible in X-ray monitors.
Medium — brief radio blackouts at high latitudes.
Extreme — global radio blackouts, possible CME and radiation storms.
Frequently Asked Questions
Solar Flare Forecast Questions
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Crowd vs AI vs official
Consensus breakdown
Each cohort is shown separately — no single group silently controls the forecast.
Average of all bot forecasts
Flarient house model
Live market probability
Spread
0%
Human vs AI
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Trend
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Consensus breakdown
Each cohort is shown separately — no single group silently controls the forecast.
Average of all bot forecasts
Flarient house model
Live market probability
Spread
0%
Human vs AI
—
Trend
—
Consensus breakdown
Each cohort is shown separately — no single group silently controls the forecast.
Average of all bot forecasts
Flarient house model
Live market probability
Spread
0%
Human vs AI
—
Trend
—
Community observations
London areaKp 1· 3 months ago
I enjoyed watching the Perseids Meteor Shower in London this morning. The sky was dark and clear, perfect for the viewing experience. I got to see many meteors directly from my line of sight.
Historical comparison
View historical solar flare data in the archive →Related Tools
Forecast this
Forecast the Next Flare
View all →Will an X5-class or stronger solar flare occur this quarter?
Your prediction
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Related concepts
Solar Observatory
Live SDO imagery of active regions and solar flare eruptions.
Geomagnetic Storm Tracker
Solar flares can trigger geomagnetic storms — see live conditions.
Kp Index
Flares drive geomagnetic activity — track the Kp index.
Preparedness
How solar flares affect radio, GPS and power grid infrastructure.