Solar Watch — June 12, 2026 | 18:00 UTC

☀ HELIOS SOLAR WATCH · 2026-06-12 16:00 UTC
Elevated Solar Activity and Anticipated G1 Geomagnetic Conditions
SOLAR: MODERATE
GEO: QUIET

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

Solar activity is currently unsettled with a trend toward G1 (minor) geomagnetic storm conditions by late today. The solar flux remains elevated at 164 sfu, indicating robust activity despite the current lack of significant flare events.

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
3.0
0–9 scale · ≥5 = geomagnetic storm

F10.7 Solar Flux
164.0
sfu · >150 = high activity

The planetary K-index is currently at 3.0, following a brief period of minor geomagnetic fluctuations. With 8 active regions across the solar disk and an F10.7 flux of 164 sfu, the sun is maintaining a moderate output. X-ray flux is currently quiet, though a 40% probability exists for M-class flares in the next 24 hours.

Key Metric

The predicted Kp-index of 4.67 is the most critical metric as it signifies the likely onset of G1 geomagnetic storm conditions.

Geomagnetic conditions are expected to reach the G1 (minor) storm threshold between 21:00 UTC today and 00:00 UTC tomorrow. Users of HF radio systems and satellite operators should remain aware of potential minor perturbations during this window.

🌌 Aurora Outlook

Aurora visibility may extend to higher mid-latitudes, such as parts of northern Canada and Scandinavia, during the anticipated G1 window. Observers at lower mid-latitudes (40-50°N) are unlikely to see significant activity.

Region Location Class Flares C/M/X
AR4466 N06W57 Cro/B 1/0/0
AR4465 N09E14 Dhi/BG 1/0/0
AR4464 S13W29 Dsi/B 0/0/0
AR4463 N17W28 Hsx/A 0/0/0
AR4462 N15W61 Cro/B 0/0/0
2026-06-11 20:40:33.250Space Weather Message Code: ALTK05
2026-06-11 20:29:33.070Space Weather Message Code: WATA30
2026-06-11 20:15:04.513Space Weather Message Code: WARK05
2026-06-11 18:57:19.477Space Weather Message Code: ALTK04
2026-06-11 18:49:58.040Space Weather Message Code: WARK04

Monitor the development of AR4465; its magnetic configuration (Dhi) carries the highest potential for M-class flare activity.