Solar Watch — August 25, 2026 | 18:00 UTC

☀ Helios Solar Watch · 2026-08-25 20:22 UTC
QUIET

Solar activity is currently marked by stable, quiet geomagnetic conditions despite moderate flaring from active region AR4513. While Earth’s magnetic field remains undisturbed, the Sun’s disk continues to show productive flare potential.

⚡ Flare activity — last 12 h
Peak: M @ 10:02 UTC (10h 20min ago) · M @ 09:53 UTC · M @ 10:24 UTC
HMI Continuum Intensity

Visible light · 4 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


⚠ Kp 30 possible · 4 more below
Next 24 h

Geomagnetic activity is expected to remain quiet with Kp values likely staying below 2.0. We anticipate continued C-class flare activity, with a persistent 40% probability of further M-class events as AR4513 rotates across the solar disk.

🌌 Aurora

Aurora activity is currently restricted to high-latitude polar regions.

more

No significant geomagnetic disturbances are expected to push the aurora oval toward mid-latitudes (40-60°N) within the next 24 hours.

👁 Watch for

Monitor the magnetic complexity of AR4513; any sudden increase in its magnetic classification could lead to impulsive M-class or higher eruptions.

▸ Detailed readings

Radio blackout
 R0
(24 h max R0)
Radiation
 S0
(24 h max S0)
F10.7
 100.0
sfu

Region Location Class Flares C/M/X
AR4516 N16W68 Dso/BG 0/0/0
AR4515 S07E09 Hsx/A 0/0/0
AR4517 N10W17 Dai/BG 0/0/0
AR4513 N04W04 Ekc/BGD 3/4/0
NOAA messages
2026-08-25 18:38  Kp 30 possible (WATA30)
2026-08-25 10:27  X-ray flare M5 summary (SUMXM5)
2026-08-25 10:20  SUM10R (SUM10R)
2026-08-25 10:15  ALTTP2 (ALTTP2)
2026-08-25 10:01  X-ray flare MF reached (ALTXMF)


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