Solar Watch — September 29, 2026 | 06:00 UTC

☀ Helios Solar Watch · 2026-09-29 04:00 UTC
QUIET

Solar activity remains at low levels with the planetary K-index holding steady at quiet values. Space weather conditions are currently stable with no significant geomagnetic or radiation disturbances.

HMI Continuum Intensity

Visible light · 2 active regions

SUVI 304 — Extreme UV

Extreme UV · 304 Å

Kp Index
2.0
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

Conditions are expected to remain quiet throughout the next 24 hours. The K-index will likely fluctuate between 0 and 2 as no significant solar wind structures or coronal mass ejections are anticipated to impact Earth’s magnetosphere.

🌌 Aurora

Aurora visibility is not expected at mid-latitudes.

more

Observers in high-latitude regions may see minimal activity, but there is no forecast support for displays in lower latitudes.

👁 Watch for

Monitor the development of active regions, particularly any increase in magnetic complexity, which could raise the current 10% probability for M-class solar flares.

▸ 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 N11W32 Csi/BG 0/0/0
AR4542 S19W35 Axx/A 0/0/0
NOAA messages
2026-09-28 05:00  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