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  • Solar Watch — August 17, 2026 | 18:00 UTC

    ☀ Helios Solar Watch · 2026-08-17 16:00 UTC
    QUIET

    The Sun remains in a stable, quiet state with geomagnetic activity holding well below storm thresholds. Solar activity levels are moderate, characterized by occasional low-level C-class flares.

    HMI Continuum Intensity

    Visible light · 4 active regions

    SUVI 304 — Extreme UV

    Extreme UV · 304 Å

    Kp Index
    2.3
    5 or above = storm

    Geomagnetic
    G0
    24 h max: G0

    X-Ray
    A/B
    quiet


    ⚠ Kp 4 expected · 4 more below
    Next 24 h

    Expect geomagnetic conditions to remain quiet to unsettled, with the Kp-index hovering near 3.0 through the next 24 hours. No significant solar radiation storms or radio blackouts are anticipated as solar flare probabilities remain low.

    🌌 Aurora

    Aurora visibility for mid-latitudes is not expected.

    more

    Observers at high latitudes (above 60°N) may experience very faint or isolated auroral displays, but conditions are generally unfavorable for widespread activity.

    👁 Watch for

    Monitor AR4507 and AR4510 as they rotate toward the solar limb for any sudden structural changes or magnetic reconnection events.

    ▸ Detailed readings

    Radio blackout
     R0
    (24 h max R0)
    Radiation
     S0
    (24 h max S0)
    F10.7
     114.0
    sfu

    Region Location Class Flares C/M/X
    AR4506 N12W60 Dso/B 0/0/0
    AR4508 N07W12 Cso/B 0/0/0
    AR4507 N04W44 Eai/BG 1/0/0
    AR4510 N13W73 Hsx/A 1/0/0
    NOAA messages
    2026-08-14 10:54  Kp 4 expected (WARK04)
    2026-08-14 07:15  ALTTP2 (ALTTP2)
    2026-08-11 20:55  Kp 20 possible (WATA20)
    2026-08-11 11:41  Proton flux UD summary (SUMSUD)
    2026-08-11 10:47  Proton flux UD expected (WARSUD)


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