Latest Helios Report

  • Solar Watch — May 20, 2026 | 06:00 UTC

    ☀ HELIOS SOLAR WATCH · 2026-05-20 04:00 UTC
    Solar activity subsiding as geomagnetic conditions return to quiet levels
    SOLAR: MODERATE
    GEO: QUIET

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

    Solar activity is currently low with the planetary K-index settling back toward quiet levels. No significant geomagnetic or radiation storms are expected in the next 24 hours.

    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
    3.0
    0–9 scale · ≥5 = geomagnetic storm

    F10.7 Solar Flux
    98.0
    sfu · >150 = high activity

    The Sun remains in a quiet state, with X-ray flux measured at background levels. While five active regions are present on the solar disk, their magnetic complexity is minimal, resulting in only minor C-class flare production. F10.7 solar radio flux has dipped to 98.0 sfu, confirming a period of decreased solar output.

    Key Metric

    The F10.7 radio flux of 98.0 sfu indicates a return to lower levels of solar activity, reflecting a decline in overall solar cycle intensity at this time.

    Geomagnetic conditions are expected to remain at Kp 2 or lower for the duration of the forecast period. Solar flare activity will likely remain restricted to isolated, low-level C-class events.

    🌌 Aurora Outlook

    Aurora visibility is not expected at mid-latitudes. Observers in high-latitude regions may see minimal, quiet-time auroral activity, but no organized storm structures are predicted.

    Region Location Class Flares C/M/X
    AR4436 N18W64 Cso/B 5/0/0
    AR4441 N07W15 Dao/B 0/0/0
    AR4440 N17E29 Hrx/A 0/0/0
    AR4443 S16E37 Axx/A 0/0/0
    AR4439 N06E30 Cao/B 0/0/0
    2026-05-19 23:56:50.663Space Weather Message Code: WARK04
    2026-05-19 20:57:51.727Space Weather Message Code: WARK04
    2026-05-19 16:42:16.093Space Weather Message Code: WARK04
    2026-05-19 08:55:28.143Space Weather Message Code: ALTK04
    2026-05-19 07:03:03.623Space Weather Message Code: WARK04

    Monitor the magnetic evolution of active region AR4436 as it rotates toward the solar limb, noting any sudden changes in sunspot complexity that could indicate latent flare potential.