Author: sitemill

  • Solar Watch — September 22, 2026 | 18:00 UTC

    ☀ Helios Solar Watch · 2026-09-22 16:00 UTC
    QUIET

    Current solar conditions are quiet with low geomagnetic activity and minimal solar flare output. All space weather indices remain well within nominal ranges, posing no concern for Earth’s infrastructure.

    HMI Continuum Intensity

    Visible light · 7 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 geomagnetic conditions to remain quiet, with Kp levels expected to hover near 1.67 through the next 24 hours. No significant solar radiation storms or radio blackouts are anticipated, and the solar disk remains largely quiescent.

    🌌 Aurora

    Aurora activity is currently restricted to high-latitude polar regions.

    more

    Observers at mid-latitudes should not expect any visible auroral displays, as current solar wind speeds and geomagnetic activity are insufficient to push the auroral oval south.

    👁 Watch for

    Monitor the magnetic evolution of active region AR4536, as it currently holds the highest potential for minor C-class flaring in an otherwise stable environment.

    ▸ Detailed readings

    Radio blackout
     R0
    (24 h max R0)
    Radiation
     S0
    (24 h max S0)
    F10.7
     99.0
    sfu

    Region Location Class Flares C/M/X
    AR4534 N11W35 Dai/B 0/0/0
    AR4536 N02W13 Csi/B 1/0/0
    AR4533 S13E36 Hsx/A 0/0/0
    AR4538 N12W23 Bxo/B 0/0/0
    AR4537 N08W26 Bxo/B 0/0/0
    AR4535 N12E48 Cao/B 0/0/0
    AR4539 S09E27 Dro/B 0/0/0
    NOAA messages
    2026-09-21 18:32  Kp 20 possible (WATA20)
    2026-09-16 05:38  Kp 4 expected (WARK04)
    2026-09-16 00:34  Kp 4 reached (ALTK04)
    2026-09-15 18:56  Kp 5 (G1) expected (WARK05)
    2026-09-14 11:03  Electron flux F3 reached (ALTEF3)


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