Solar Watch — June 05, 2026 | 18:00 UTC

☀ HELIOS SOLAR WATCH · 2026-06-05 16:00 UTC
Geomagnetic activity increasing, G3 storm conditions expected by late evening.
SOLAR: MODERATE
GEO: ACTIVE

Active Regions
7
X-Ray
A/B (quiet)

Earth is currently experiencing a transition into geomagnetic storming, with the Kp-index rising to 5.3 and expected to reach G3 levels later today. This activity is the result of arriving solar wind conditions impacting the planetary magnetic field.

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: G3

Planetary Kp-Index
5.3
0–9 scale · ≥5 = geomagnetic storm

F10.7 Solar Flux
146.0
sfu · >150 = high activity

The planetary K-index has climbed to 5.3, indicating the onset of G1 geomagnetic storm levels. Solar flare activity remains subdued, with only low-level C-class events reported, while the solar flux is holding steady at a moderate 146 sfu. The magnetosphere is actively responding to current wind pressures, setting the stage for more pronounced disturbances.

Key Metric

The forecasted Kp 6.67 at 21:00 UTC is the most critical metric as it signifies a strong G3 geomagnetic storm, which may cause minor power grid fluctuations and satellite navigation interference.

Geomagnetic activity is forecast to intensify, peaking at G3 storm levels (Kp 6.67) around 21:00 UTC today. Conditions are expected to moderate rapidly thereafter, returning to quiet levels by 00:00 UTC on June 6th.

🌌 Aurora Outlook

Aurora visibility is significantly enhanced, with displays potentially extending to mid-latitude regions (40-60°N) during the peak period this evening. Observers in these zones should monitor the northern horizon under clear, dark skies as the storm progresses.

Region Location Class Flares C/M/X
AR4462 N17E32 Dri/B 1/0/0
AR4461 S21E30 Cro/B 0/0/0
AR4459 N14E10 Dai/BG 2/0/0
AR4458 S04W37 Dai/B 0/0/0
AR4457 S08W86 Cso/B 3/0/0
AR4455 N15W48 Dki/BG 1/0/0
AR4463 N16E63 Hsx/A 0/0/0
2026-06-05 14:41:55.777Space Weather Message Code: WARK06
2026-06-05 13:35:30.593Space Weather Message Code: ALTK05
2026-06-05 12:58:55.313Space Weather Message Code: ALTK04
2026-06-05 12:30:35.403Space Weather Message Code: WARK05
2026-06-05 05:13:38.727Space Weather Message Code: SUMSUD

Monitor the Bz component of the Interplanetary Magnetic Field; a sustained southward orientation during the peak window will be the primary driver for intensifying the auroral display.