Latest Helios Report

  • Solar Watch — June 29, 2026 | 18:00 UTC

    ☀ HELIOS SOLAR WATCH · 2026-06-29 16:00 UTC
    Solar activity transitioning to unsettled; geomagnetic disturbance anticipated
    SOLAR: MODERATE
    GEO: QUIET

    Active Regions
    6
    X-Ray
    A/B (quiet)

    Solar activity is currently quiet, but conditions are expected to shift to active levels late in the day. A G1 (minor) geomagnetic storm is forecast to develop due to anticipated solar wind interactions.

    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
    1.0
    0–9 scale · ≥5 = geomagnetic storm

    F10.7 Solar Flux
    105.0
    sfu · >150 = high activity

    The solar disk currently hosts eight active regions, with moderate C-class flare production observed. Geomagnetic conditions are stable with a Kp-index of 1.0. Solar radio flux remains at a moderate 105 sfu, indicating a baseline level of solar activity.

    Key Metric

    The forecast jump in Kp to 4.67 is the most critical metric as it signifies the onset of a minor geomagnetic disturbance which may influence satellite drag and high-latitude navigation.

    Geomagnetic activity is expected to increase significantly after 21:00 UTC, reaching G1 levels (Kp 4.67). Radio communications are expected to remain unaffected by ionospheric absorption, though sensitive systems should monitor for minor fluctuations.

    🌌 Aurora Outlook

    At a Kp of 4.67, auroral displays are unlikely to be visible at mid-latitudes (40-60°N). Observers at high latitudes, such as in northern Canada or Scandinavia, may witness quiet auroral activity once the disturbance manifests.

    Region Location Class Flares C/M/X
    AR4476 N08W72 Axx/A 0/0/0
    AR4475 S07W50 Dai/BG 1/0/0
    AR4477 S13W14 Bxo/B 0/0/0
    AR4478 S05E07 Fki/BGD 1/0/0
    AR4479 N15W12 Eki/BGD 7/0/0
    AR4480 S16W18 Dso/B 0/0/0
    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 the G1 geomagnetic threshold crossing after 21:00 UTC for potential enhancements in solar wind speed or density.