Solar Watch — June 30, 2026 | 06:00 UTC

Solar Flare Activity — Last 12 Hours
Peak: M-class @ 21:40 UTC (6h 20min ago)
  M @ 21:34 UTC  ·  M @ 01:09 UTC

☀ HELIOS SOLAR WATCH · 2026-06-30 04:00 UTC
Geomagnetic activity levels elevating to G1-storm conditions
SOLAR: UNSETTLED
GEO: QUIET

Active Regions
5
X-Ray
A/B (quiet)

Geomagnetic conditions are shifting from quiet to active, with Kp levels expected to hit 5.0 in the coming hours. A recent M-class flare suggests persistent instability in AR4479, though current background X-ray flux remains calm.

HMI Continuum Intensity

HMI Continuum · Visible Light

SUVI 304 — Extreme UV

SUVI 304Å · Extreme Ultraviolet

R0
Radio Blackouts
24h max: R0

S0
Solar Radiation
24h max: S0

G0
Geomagnetic Storm
24h max: G1

Planetary Kp-Index
0.3
0–9 scale · ≥5 = geomagnetic storm

F10.7 Solar Flux
114.0
sfu · >150 = high activity

The planetary K-index is currently recovering from a quiet state but is forecast to reach G1 (minor) storm levels due to incoming solar wind influences. F10.7 flux is measured at 114 sfu, indicating moderate solar activity across the 36 active regions currently visible. While X-ray output is currently in the A/B range, the recent M-class activity from AR4479 warrants continued monitoring for potential impulsive eruptions.

Key Metric

The Kp-index, currently transitioning to 5.0, is the critical indicator as it signals the onset of a G1-class geomagnetic disturbance.

Expect a brief period of G1 geomagnetic activity peaking over the next few hours, followed by a gradual decay back to quiet levels by mid-day. Solar flare potential remains moderate, with a 90% chance of C-class activity and a persistent 25% risk for further M-class events from active region AR4479.

🌌 Aurora Outlook

Minor auroral displays are possible at high latitudes as Kp reaches 5.0. Mid-latitude observers should generally expect quiet conditions, as the current storm intensity is not sufficient to push the auroral oval significantly equatorward.

Region Location Class Flares C/M/X
AR4480 S18W17 Dao/B 0/0/0
AR4479 N16W10 Eki/BGD 9/1/0
AR4478 S05E08 Fko/BGD 1/0/0
AR4477 S14W15 Bxo/B 0/0/0
AR4475 S09W49 Dai/BGD 5/0/0
2026-06-29 05:02:33.583Space Weather Message Code: ALTEF3
2026-06-28 10:41:25.723Space Weather Message Code: WATA20
2026-06-28 05:07:19.223Space Weather Message Code: ALTEF3
2026-06-27 07:13:20.747Space Weather Message Code: ALTEF3
2026-06-26 14:06:14.680Space Weather Message Code: ALTEF3

Monitor AR4479 closely; its recent history of M-class flares suggests it remains the primary driver for potential radio degradation or further sudden geomagnetic impulses.