Author: sitemill

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

    Solar Flare Activity — Last 12 Hours
    Peak: M-class @ 22:57 UTC (5h 3min ago)
      M @ 19:21 UTC  ·  M @ 20:01 UTC  ·  M @ 22:55 UTC

    ☀ HELIOS SOLAR WATCH · 2026-04-27 04:00 UTC
    Active solar regions producing frequent M-class flares; geomagnetic field stable.
    SOLAR: UNSETTLED
    GEO: QUIET

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

    Solar activity is elevated with multiple M-class flares recorded in the last 12 hours from AR4425 and AR4420. Despite this X-ray activity, planetary geomagnetic conditions remain settled at Kp 3.

    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
    112.0
    sfu · >150 = high activity

    The Sun is displaying moderate activity with an F10.7 flux of 112 sfu and seven active regions currently on the visible disk. Three M-class flares were observed within the last 12 hours, indicating high magnetic complexity in the northern hemisphere. However, these events have not yet triggered significant geomagnetic storms, keeping current conditions within the unsettled range.

    Key Metric

    The 50% probability of M-class flares is the primary metric, as ongoing eruptions represent a consistent, albeit localized, source of space weather stress.

    Geomagnetic activity is expected to trend downward, with the Kp-index dropping from 3 to 2 by the end of the period. While the probability of further C-class flares remains high at 99%, the primary focus will be the ongoing potential for isolated M-class eruptions from the evolving active regions.

    🌌 Aurora Outlook

    Aurora visibility is not expected at mid-latitudes given the current Kp 3 status. Observers at very high latitudes may see minor, quiet-time auroral activity, but no significant displays are forecast for the next 24 hours.

    Region Location Class Flares C/M/X
    AR4423 S06E04 Dso/B 0/0/0
    AR4427 S30E53 Axx/A 0/0/0
    AR4425 N05E50 Esc/BGD 5/2/0
    AR4424 N17E19 Dsi/B 1/0/0
    AR4420 N16W16 Fkc/BGD 7/1/0
    AR4426 N12W52 Axx/A 0/0/0
    AR4421 S12W03 Hsx/A 0/0/0
    2026-04-27 01:06:25.970Space Weather Message Code: ALTTP2
    2026-04-26 23:33:07.687Space Weather Message Code: WARK04
    2026-04-26 23:17:50.840Space Weather Message Code: SUMXM5
    2026-04-26 23:08:38.813Space Weather Message Code: SUM10R
    2026-04-26 23:00:55.950Space Weather Message Code: ALTXMF

    Monitor the magnetic evolution of AR4425 as it rotates further toward the center of the disk, as it currently shows the highest potential for continued flaring.