Solar Watch — July 04, 2026 | 18:00 UTC

Solar Flare Activity — Last 12 Hours
Peak: M-class @ 11:12 UTC (4h 48min ago)
  M @ 05:12 UTC  ·  M @ 08:02 UTC  ·  M @ 08:52 UTC  ·  M @ 11:07 UTC  ·  M @ 13:47 UTC

☀ HELIOS SOLAR WATCH · 2026-07-04 16:00 UTC
Geomagnetic activity subsiding following period of M-class solar flares
SOLAR: UNSETTLED
GEO: ACTIVE

Active Regions
4
X-Ray
A/B (quiet)

Geomagnetic activity is currently in a state of flux with a Kp of 6.3, though levels are expected to decline rapidly over the next few hours. The solar disk remains moderately active with recurring M-class flares from AR4479.

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: G0

Planetary Kp-Index
6.3
0–9 scale · ≥5 = geomagnetic storm

F10.7 Solar Flux
132.0
sfu · >150 = high activity

The planetary K-index is elevated at 6.3, indicating a lingering geomagnetic response from earlier solar activity. Solar flux remains moderate at 132.0 sfu, providing stable conditions for satellite communications, though the recent string of M-class flares suggests a magnetically complex environment in the active regions nearing the western limb.

Key Metric

A Kp-index of 6.3 signifies a G2-level geomagnetic disturbance, which is the primary driver of current, albeit fading, high-latitude auroral activity.

Geomagnetic conditions are trending toward quiet levels, with the Kp-index projected to fall to 3.0 or lower within the next 6 to 9 hours. No significant storming is anticipated for the remainder of the 24-hour window.

🌌 Aurora Outlook

While currently elevated, auroral displays are retreating toward high latitudes. Mid-latitude observers are unlikely to see significant activity tonight as the Kp-index drops below the threshold required for visibility at 40-60°N.

Region Location Class Flares C/M/X
AR4480 S18W82 Dao/B 0/0/0
AR4479 N16W79 Fkc/BGD 4/9/0
AR4481 N14E46 Axx/A 0/0/0
AR4478 S06W61 Fko/BG 0/0/0
2026-07-04 14:21:41.873Space Weather Message Code: WARK04
2026-07-04 14:12:48.350Space Weather Message Code: WARK05
2026-07-04 13:58:21.523Space Weather Message Code: ALTK06
2026-07-04 13:57:38.983Space Weather Message Code: WARK06
2026-07-04 13:22:10.927Space Weather Message Code: ALTK05

Monitor AR4479 for any final impulsive M-class flares as it continues to rotate toward the western limb of the solar disk.