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

☀ Helios Solar Watch · 2026-08-29 04:00 UTC
UNSETTLED

Geomagnetic activity is escalating as Earth encounters solar wind disturbances, with a G2 (Moderate) geomagnetic storm likely in the next few hours. Current conditions are unsettled to active, with Kp levels holding at 4.3.

HMI Continuum Intensity

Visible light · 6 active regions

SUVI 304 — Extreme UV

Extreme UV · 304 Å

Kp Index
4.3
5 or above = storm

Geomagnetic
G0
24 h max: G2

X-Ray
A/B
quiet


⚠ Kp 4 expected · 4 more below
Next 24 h

We expect a peak in geomagnetic activity to Kp 5.67 around 06:00 UTC, reaching G2 storm levels. By 09:00 UTC, conditions are anticipated to settle back toward Kp 4 and stabilize through the remainder of the 24-hour period.

🌌 Aurora

Observers at mid-latitudes (40-60°N) should be alert for potential aurora visibility during the 06:00 UTC peak, particularly in regions with low light pollution.

more

Those at high latitudes can expect consistent displays as the geomagnetic field remains in an active state.

👁 Watch for

Monitor the Kp-index following the 06:00 UTC window to see if the solar wind returns to quiet conditions as forecasted or if the disturbance persists longer than expected.

▸ Detailed readings

Radio blackout
 R0
(24 h max R0)
Radiation
 S0
(24 h max S0)
F10.7
 115.0
sfu

Region Location Class Flares C/M/X
AR4520 S13E34 Bxo/B 0/0/0
AR4517 N09W58 Eso/B 0/0/0
AR4513 N04W43 Dai/B 1/0/0
AR4518 N08E19 Cro/B 0/0/0
AR4515 S07W31 Hsx/A 0/0/0
AR4519 N27E25 Axx/A 0/0/0
NOAA messages
2026-08-28 23:50  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