Latest Helios Report

  • Solar Watch — May 28, 2026 | 18:00 UTC

    ☀ HELIOS SOLAR WATCH · 2026-05-28 16:00 UTC
    Solar activity remains in moderate state with low geomagnetic disturbance
    SOLAR: MODERATE
    GEO: QUIET

    Active Regions
    10
    X-Ray
    A/B (quiet)

    Solar activity is currently characterized by moderate levels with no significant geomagnetic storms. While flare probabilities for C-class events are high, the current space weather environment remains stable.

    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
    2.7
    0–9 scale · ≥5 = geomagnetic storm

    F10.7 Solar Flux
    108.0
    sfu · >150 = high activity

    The sun is exhibiting moderate activity with 15 active regions identified, though current x-ray output remains at background levels. The F10.7 flux is holding steady at 108 sfu, suggesting a stable solar output. Planetary Kp-index readings are fluctuating near 2.7, which indicates a calm, unsettled geomagnetic environment with no immediate impact on satellite or power grid infrastructure.

    Key Metric

    The 65% probability of M-class flares is the primary metric to monitor, as this indicates the potential for localized radio degradation on the sunlit side of Earth.

    Expect the Kp-index to remain below storm thresholds, with minor variations between Kp 1.6 and 3.6 over the next 24 hours. Radio communication remains stable, though observers should anticipate consistent minor C-class flare activity due to the presence of multiple active regions.

    🌌 Aurora Outlook

    Aurora visibility is not expected at mid-latitudes (40-60°N) for the next 24 hours. Occasional, faint activity may be confined to high polar latitudes under dark-sky conditions.

    Region Location Class Flares C/M/X
    AR4455 N15E65 Dao/B 1/0/0
    AR4454 S15E48 Hrx/A 0/0/0
    AR4453 N11W76 Bxo/B 0/0/0
    AR4452 N09W35 Dai/B 0/0/0
    AR4449 S10E09 Hax/A 0/0/0
    AR4448 S06E14 Cro/B 0/0/0
    AR4447 S17W28 Dsi/B 1/0/0
    AR4446 S16E16 Fko/BG 0/0/0
    AR4444 S21W22 Hsx/A 0/0/0
    AR4443 S17W81 Axx/A 0/0/0
    2026-05-28 11:45:15.723Space Weather Message Code: WARK04
    2026-05-28 05:17:14.347Space Weather Message Code: WARK04
    2026-05-27 23:47:33.327Space Weather Message Code: WARK04
    2026-05-27 14:45:02.823Space Weather Message Code: SUMPX1
    2026-05-27 05:47:17.563Space Weather Message Code: WARK04

    Monitor the magnetic complexity of active region AR4446, which shows Beta-Gamma characteristics that could potentially produce higher-magnitude flaring than currently observed.