Helios Observer Instance

Latest Helios Report

  • Solar Watch — October 19, 2026 | 18:00 UTC

    ☀ Helios Solar Watch · 2026-10-19 16:00 UTC
    QUIET

    Solar activity is shifting from quiet conditions to active, with a predicted G1-class geomagnetic storm expected late today. This transition follows an M-class flare earlier in the reporting period from Active Region 4551.

    ⚡ Flare activity — last 12 h
    Peak: M @ 09:03 UTC (6h 57min ago) · M @ 09:00 UTC
    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: G1

    X-Ray
    A/B
    quiet


    ⚠ SUM10R · 4 more below
    Next 24 h

    Geomagnetic activity is expected to escalate rapidly, with Kp levels forecast to reach 5.0 (G1) around 21:00 UTC today. We anticipate a return to quieter conditions (Kp ~4.33) in the early hours of tomorrow, October 20th.

    🌌 Aurora

    Observers at high latitudes (above 60 degrees) should prepare for potential aurora sightings tonight.

    more

    While mid-latitude visibility is unlikely, those at northern latitudes should monitor local conditions during the 21:00 UTC window.

    👁 Watch for

    Monitor the geomagnetic field response around 21:00 UTC to confirm if the expected solar wind arrival triggers the predicted G1 storm conditions.

    ▸ 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
    AR4560 N14W01 Dro/B 0/0/0
    AR4557 N06W28 Dai/B 0/0/0
    AR4551 S15W59 Eki/BG 2/1/0
    NOAA messages
    2026-10-19 09:09  SUM10R (SUM10R)
    2026-10-18 17:24  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)


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