Solar Watch — September 13, 2026 | 06:00 UTC

☀ Helios Solar Watch · 2026-09-13 04:00 UTC
QUIET

Solar activity is currently subdued with no significant geomagnetic disturbances observed or expected. Earth’s magnetosphere remains in a quiet state, reflecting the lack of high-energy solar eruptive events.

HMI Continuum Intensity

Visible light · 6 active regions

SUVI 304 — Extreme UV

Extreme UV · 304 Å

Kp Index
1.0
5 or above = storm

Geomagnetic
G0
24 h max: G0

X-Ray
A/B
quiet


⚠ Electron flux F3 reached · 4 more below
Next 24 h

Conditions are expected to remain quiet over the next 24 hours, with the K-index predicted to fluctuate slightly between 2.0 and 2.3. No significant solar radiation storms or radio blackouts are anticipated during this period.

🌌 Aurora

Aurora activity will be restricted to high polar latitudes.

more

There is no probability of visible auroras for mid-latitude observers at this time.

👁 Watch for

Monitor the complexity of active regions AR4529 and AR4530, as their magnetic configuration maintains a 15% probability of producing M-class flares within the next 24 hours.

▸ Detailed readings

Radio blackout
 R0
(24 h max R0)
Radiation
 S0
(24 h max S0)
F10.7
 127.0
sfu

Region Location Class Flares C/M/X
AR4524 N12W54 Hrx/A 0/0/0
AR4525 N11W38 Axx/A 0/0/0
AR4527 N04W33 Hsx/A 0/0/0
AR4528 S11W17 Hsx/A 0/0/0
AR4529 N12W18 Cao/B 0/0/0
AR4530 N19W49 Dao/B 0/0/0
NOAA messages
2026-09-12 06:45  Electron flux F3 reached (ALTEF3)
2026-09-09 21:01  Kp 30 possible (WATA30)
2026-09-08 17:51  Kp 5 (G1) reached (ALTK05)
2026-09-08 17:30  Kp 4 expected (WARK04)
2026-09-08 17:27  Kp 5 (G1) expected (WARK05)


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