Latest Helios Report

  • Solar Watch — May 27, 2026 | 06:00 UTC

    ☀ HELIOS SOLAR WATCH · 2026-05-27 04:00 UTC
    Solar activity remains moderate with unsettled geomagnetic conditions
    SOLAR: MODERATE
    GEO: UNSETTLED

    Active Regions
    9
    X-Ray
    A/B (quiet)

    Solar activity is characterized by a moderate F10.7 flux of 108 sfu and a persistent risk of M-class flares. Geomagnetic conditions are currently unsettled but remain below storm thresholds.

    HMI Continuum Intensity

    HMI Continuum · Visible Light

    SUVI 304 — Extreme UV

    SUVI 304Å · Extreme Ultraviolet

    R0
    Radio Blackouts
    24h max: R0

    S1
    Solar Radiation
    24h max: S0

    G0
    Geomagnetic Storm
    24h max: G0

    Planetary Kp-Index
    2.3
    0–9 scale · ≥5 = geomagnetic storm

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

    Nine active regions are visible on the disk, with AR4446 and AR4448 showing the most magnetic complexity. Background X-ray flux is at low levels following minor C-class flare activity. The current Kp index of 2.3 reflects a quiet geomagnetic environment following a brief period of elevation.

    Key Metric

    The 70% probability for M-class flares is the primary metric to monitor, as any sudden eruption could trigger localized, short-duration radio blackouts.

    Expect geomagnetic conditions to stabilize further as Kp values trend downward from 3.0 toward 2.3 over the next 24 hours. The potential for M-class solar flares remains notable at 70%, which could briefly impact shortwave radio propagation on the sunlit side of Earth.

    🌌 Aurora Outlook

    Aurora visibility is not expected for mid-latitudes given the current Kp index of 2.3. Observers at high polar latitudes may see faint auroral activity, but conditions are not favorable for lower-latitude viewing.

    Region Location Class Flares C/M/X
    AR4452 N09W07 Cro/B 0/0/0
    AR4450 N09E36 Bxo/B 0/0/0
    AR4449 S11E37 Hsx/A 0/0/0
    AR4448 S08E42 Dao/B 1/0/0
    AR4443 S16W57 Cso/B 1/0/0
    AR4444 S21E05 Hsx/A 0/0/0
    AR4445 N07E11 Axx/A 0/0/0
    AR4446 S16E43 Fho/BG 2/0/0
    AR4447 S16W02 Dsi/B 0/0/0
    2026-05-27 02:28:51.080Space Weather Message Code: SUMPX1
    2026-05-27 02:27:49.300Space Weather Message Code: SUMPX1
    2026-05-27 00:01:34.010Space Weather Message Code: ALTK04
    2026-05-26 21:38:28.160Space Weather Message Code: WARK04
    2026-05-26 14:22:06.270Space Weather Message Code: ALTTP2

    Monitor the magnetic evolution of AR4446 and AR4448, as their potential for growth could elevate flare probabilities beyond the current projections.