Solar Watch — August 26, 2026 | 18:00 UTC

☀ Helios Solar Watch · 2026-08-26 16:00 UTC
QUIET

Solar activity is currently marked by moderate M-class flare production from AR4513, though global geomagnetic conditions remain quiet. We anticipate a minor increase in geomagnetic disturbance heading into the early hours of August 27.

⚡ Flare activity — last 12 h
Peak: M @ 06:34 UTC (9h 26min ago) · M @ 06:32 UTC · M @ 12:14 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


⚠ Electron flux F3 reached · 4 more below
Next 24 h

Geomagnetic activity is expected to rise to Kp 3.67 by 00:00 UTC on August 27. Flare probabilities remain skewed toward C-class events, with a continued 30% chance of further M-class activity originating from AR4513 over the next 24 hours.

🌌 Aurora

Aurora visibility is not expected at mid-latitudes at this time.

more

Observers in high-latitude regions may see minor activity as the Kp-index climbs late tonight, but displays will likely be faint and confined to northern polar regions.

👁 Watch for

Monitor AR4513 closely for further M-class flare production, as its current magnetic complexity remains the primary driver of solar activity.

▸ Detailed readings

Radio blackout
 R0
(24 h max R0)
Radiation
 S0
(24 h max S0)
F10.7
 101.0
sfu

Region Location Class Flares C/M/X
AR4516 N15W81 Dao/B 0/0/0
AR4515 S07W04 Hsx/A 0/0/0
AR4517 N09W31 Dai/BG 0/0/0
AR4513 N04W17 Dac/BGD 1/2/0
NOAA messages
2026-08-26 08:13  Electron flux F3 reached (ALTEF3)
2026-08-26 06:58  ALTTP2 (ALTTP2)
2026-08-26 06:45  SUM10R (SUM10R)
2026-08-25 18:38  Kp 30 possible (WATA30)
2026-08-25 10:27  X-ray flare M5 summary (SUMXM5)


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