Solar Watch — September 13, 2026 | 18:00 UTC

☀ Helios Solar Watch · 2026-09-13 16:00 UTC
QUIET

The Sun is currently in a quiet state with minimal flare activity and stable geomagnetic conditions. No significant space weather disturbances are anticipated within the next 24 hours.

HMI Continuum Intensity

Visible light · 6 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 · 4 more below
Next 24 h

Conditions are expected to remain quiet with minor, transient increases in geomagnetic activity as the Kp index reaches an estimated 3.33 later today.

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No significant solar radiation or radio blackouts are forecast, allowing for stable operations across all satellite and radio sectors.

🌌 Aurora

Aurora visibility is not expected at mid-latitudes.

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Observers in high-latitude regions may see minor, localized auroral activity, but conditions are not conducive to significant displays.

👁 Watch for

Monitor the development of AR4530 and AR4529, as their magnetic complexity could evolve into minor C-class flare activity.

▸ 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
AR4530 N19W63 Cao/B 0/0/0
AR4527 N04W48 Hax/A 0/0/0
AR4528 S11W31 Hsx/A 0/0/0
AR4525 N11W52 Bxo/B 0/0/0
AR4524 N12W68 Hrx/A 0/0/0
AR4529 N12W32 Cao/B 0/0/0
NOAA messages
2026-09-13 08:27  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