Helios Observer Instance

Author: sitemill

  • Solar Watch — October 18, 2026 | 18:00 UTC

    ☀ Helios Solar Watch · 2026-10-18 16:00 UTC
    QUIET

    Solar activity is currently minimal, with the planetary K-index holding at very low levels. The sun remains quiet, with no significant geomagnetic disturbances expected in the next 24 hours.

    HMI Continuum Intensity

    Visible light · 3 active regions

    SUVI 304 — Extreme UV

    Extreme UV · 304 Å

    Kp Index
    0.3
    5 or above = storm

    Geomagnetic
    G0
    24 h max: G0

    X-Ray
    A/B
    quiet


    ⚠ Kp 20 possible · 4 more below
    Next 24 h

    Expect calm space weather to persist through the next 24 hours. Geomagnetic conditions are forecast to remain at quiet levels, with Kp values likely staying below 2.5.

    🌌 Aurora

    Aurora visibility is not expected for mid-latitudes.

    more

    Observers at high latitudes may see minimal, baseline auroral activity, but conditions are not favorable for significant displays.

    👁 Watch for

    Monitor the evolution of AR4551 and AR4557 for any signs of magnetic complexity, as these regions remain the primary sources of potential flare activity.

    ▸ Detailed readings

    Radio blackout
     R0
    (24 h max R0)
    Radiation
     S0
    (24 h max S0)
    F10.7
     109.0
    sfu

    Region Location Class Flares C/M/X
    AR4559 S19W37 Dro/B 0/0/0
    AR4557 N06W13 Eac/BGD 1/0/0
    AR4551 S16W46 Eki/BG 2/0/0
    NOAA messages
    2026-10-17 20:14  Kp 20 possible (WATA20)
    2026-10-16 19:39  Kp 4 reached (ALTK04)
    2026-10-16 19:38  Kp 4 expected (WARK04)
    2026-10-16 14:19  Electron flux F3 reached (ALTEF3)
    2026-10-11 17:02  Kp 30 possible (WATA30)


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