Solar Watch — September 12, 2026 | 18:00 UTC

☀ Helios Solar Watch · 2026-09-12 16:00 UTC
QUIET

The sun is currently in a period of relative calm with no significant geomagnetic disturbances or solar flares. Global geomagnetic activity remains stable at low levels with no storming predicted for the next 24 hours.

HMI Continuum Intensity

Visible light · 6 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 · 4 more below
Next 24 h

Geomagnetic conditions are expected to remain quiet with Kp values fluctuating between 1.0 and 2.3. No solar radiation storms or radio blackouts are anticipated as the potential for M-class or X-class flaring remains very low.

🌌 Aurora

Aurora activity will be restricted to typical high-latitude regions near the poles.

more

There is no expectation of mid-latitude aurora visibility during this period.

👁 Watch for

Monitor for any sudden evolution in the magnetic complexity of the current active regions that could elevate the risk of C-class flares.

▸ 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
AR4528 S11W17 Hsx/A 0/0/0
AR4525 N11W38 Bxo/B 0/0/0
AR4529 N12W18 Cao/B 0/0/0
AR4527 N04W33 Hsx/A 0/0/0
AR4530 N19W49 Dao/B 0/0/0
AR4524 N12W54 Hsx/A 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