Solar Watch — September 27, 2026 | 18:00 UTC

☀ Helios Solar Watch · 2026-09-27 16:00 UTC
QUIET

Solar activity is currently stable, with the geomagnetic field remaining in a quiet state. No significant disturbances are affecting Earth’s environment at this time.

HMI Continuum Intensity

Visible light · 4 active regions

SUVI 304 — Extreme UV

Extreme UV · 304 Å

Kp Index
1.3
5 or above = storm

Geomagnetic
G0
24 h max: G0

X-Ray
A/B
quiet


⚠ Electron flux F3 reached · 3 more below
Next 24 h

Geomagnetic conditions are expected to remain quiet for the next 24 hours, with the Kp index likely to hover near or below 2.0. Solar flare activity will continue at low levels, with a 75% chance of minor C-class events.

🌌 Aurora

Aurora activity is currently restricted to high latitudes.

more

Observers at mid-latitudes should not expect visibility, as current solar wind conditions are insufficient to drive auroral displays toward the equator.

👁 Watch for

Monitor the evolution of active region AR4536 as it approaches the western solar limb, as sudden morphological changes could indicate a potential for minor flare eruptions.

▸ Detailed readings

Radio blackout
 R0
(24 h max R0)
Radiation
 S0
(24 h max S0)
F10.7
 124.0
sfu

Region Location Class Flares C/M/X
AR4542 S19W21 Bxo/B 0/0/0
AR4535 N11W19 Dri/B 0/0/0
AR4543 S09W75 Bxo/B 0/0/0
AR4536 N02W81 Cso/B 2/0/0
NOAA messages
2026-09-27 05:02  Electron flux F3 reached (ALTEF3)
2026-09-27 00:40  Kp 4 reached (ALTK04)
2026-09-27 00:35  Kp 4 expected (WARK04)
2026-09-25 08:35  Kp 5 (G1) expected (WARK05)


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