Solar Watch — September 29, 2026 | 18:00 UTC

☀ Helios Solar Watch · 2026-09-29 16:00 UTC
QUIET

Current solar conditions are quiet with geomagnetic activity remaining at very low levels. The solar disk features moderate activity, but no significant disturbances are expected to impact Earth’s magnetosphere in the next 24 hours.

HMI Continuum Intensity

Visible light · 1 active region

SUVI 304 — Extreme UV

Extreme UV · 304 Å

Kp Index
0.7
5 or above = storm

Geomagnetic
G0
24 h max: G0

X-Ray
A/B
quiet


⚠ Kp 20 possible · 4 more below
Next 24 h

Geomagnetic conditions are expected to persist in a quiet state with Kp values not exceeding 2.0.

more

No significant solar radiation storms or radio blackouts are anticipated, maintaining normal conditions for satellite operations and HF radio propagation.

🌌 Aurora

Aurora visibility is currently restricted to the immediate polar regions.

more

No sightings are expected for mid-latitudes as the solar wind environment remains calm.

👁 Watch for

Monitor AR4535 for any sudden changes in magnetic complexity, as it represents the primary source for potential C-class flare activity.

▸ Detailed readings

Radio blackout
 R0
(24 h max R0)
Radiation
 S0
(24 h max S0)
F10.7
 126.0
sfu

Region Location Class Flares C/M/X
AR4535 N11W46 Cro/BG 0/0/0
NOAA messages
2026-09-29 13:01  Kp 20 possible (WATA20)
2026-09-29 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