Solar Watch — August 30, 2026 | 06:00 UTC

☀ Helios Solar Watch · 2026-08-30 04:00 UTC
QUIET

Geomagnetic conditions are currently unsettled with a Kp-index of 3.7, though activity is expected to subside over the next 24 hours. The solar environment remains moderate, with 28 active regions and a steady F10.7 radio flux of 135 sfu.

HMI Continuum Intensity

Visible light · 5 active regions

SUVI 304 — Extreme UV

Extreme UV · 304 Å

Kp Index
3.7
5 or above = storm

Geomagnetic
G0
24 h max: G0

X-Ray
A/B
quiet


⚠ Kp 4 expected · 4 more below
Next 24 h

Geomagnetic activity is projected to trend toward quiet levels, with the Kp-index dropping to 2.0 by 12:00 UTC.

more

Solar flare potential remains steady, with a 95% probability of C-class activity but a low 5% risk for significant X-class events.

🌌 Aurora

Aurora visibility is currently limited to high-latitude regions.

more

No significant mid-latitude auroral displays are expected given the forecast decline in geomagnetic activity.

👁 Watch for

Monitor for any sudden structural changes in AR4520, which is currently well-positioned for Earth-directed activity.

▸ Detailed readings

Radio blackout
 R0
(24 h max R0)
Radiation
 S0
(24 h max S0)
F10.7
 135.0
sfu

Region Location Class Flares C/M/X
AR4515 S07W43 Hsx/A 0/0/0
AR4517 N09W72 Eai/B 2/0/0
AR4520 S12E20 Cro/B 0/0/0
AR4518 N08E06 Bxo/B 0/0/0
AR4513 N04W58 Dai/B 0/0/0
NOAA messages
2026-08-29 11:42  Kp 4 expected (WARK04)
2026-08-28 20:40  Kp 5 (G1) expected (WARK05)
2026-08-28 15:02  Kp 4 reached (ALTK04)
2026-08-27 09:34  Electron flux F3 reached (ALTEF3)
2026-08-26 16:36  Kp 30 possible (WATA30)


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