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  • Solar Watch — August 28, 2026 | 06:00 UTC

    ☀ Helios Solar Watch · 2026-08-28 04:00 UTC
    QUIET

    Solar activity is currently quiet with no significant flaring observed. However, the geomagnetic field is expected to become unsettled throughout the day as we transition toward slightly elevated activity levels.

    HMI Continuum Intensity

    Visible light · 5 active regions

    SUVI 304 — Extreme UV

    Extreme UV · 304 Å

    Kp Index
    1.0
    5 or above = storm

    Geomagnetic
    G0
    24 h max: G2

    X-Ray
    A/B
    quiet


    ⚠ Electron flux F3 reached · 4 more below
    Next 24 h

    Geomagnetic activity is expected to increase over the next 24 hours, with Kp indices reaching toward 4.0 by mid-day and potentially approaching G1 storm levels by the end of the 12-hour window.

    more

    No major solar radiation storms are anticipated during this period.

    🌌 Aurora

    Aurora activity will be largely confined to high latitudes.

    more

    Observers in northern Canada, Scandinavia, and high-latitude regions may see minor, localized auroral displays, but significant mid-latitude visibility is not expected at this time.

    👁 Watch for

    Monitor the development of active region AR4513 as it rotates toward the western limb for any signs of magnetic instability that could trigger M-class flaring.

    ▸ Detailed readings

    Radio blackout
     R0
    (24 h max R0)
    Radiation
     S0
    (24 h max S0)
    F10.7
     111.0
    sfu

    Region Location Class Flares C/M/X
    AR4513 N04W29 Dac/BGD 5/0/0
    AR4515 S07W18 Hsx/A 0/0/0
    AR4517 N09W44 Dso/B 0/0/0
    AR4518 N07E30 Bxo/B 0/0/0
    AR4519 N27E40 Axx/A 0/0/0
    NOAA messages
    2026-08-27 09:34  Electron flux F3 reached (ALTEF3)
    2026-08-26 16:36  Kp 30 possible (WATA30)
    2026-08-26 06:58  ALTTP2 (ALTTP2)
    2026-08-26 06:45  SUM10R (SUM10R)
    2026-08-25 10:27  X-ray flare M5 summary (SUMXM5)


    Helios Observer · Data: NOAA SWPC · updated every 12 h