Solar Watch — August 15, 2026 | 06:00 UTC

☀ Helios Solar Watch · 2026-08-15 04:00 UTC
QUIET

Solar activity is currently stable, characterized by moderate radio flux and a quiet geomagnetic environment. We anticipate a brief period of unsettled conditions as minor geomagnetic disturbances settle into a resting state.

HMI Continuum Intensity

Visible light · 7 active regions

SUVI 304 — Extreme UV

Extreme UV · 304 Å

Kp Index
1.3
5 or above = storm

Geomagnetic
G0
24 h max: G0

X-Ray
A/B
quiet


⚠ Kp 4 expected · 4 more below
Next 24 h

Expect geomagnetic conditions to hover around Kp 3 for the next six to nine hours before tapering off to Kp 2 by midday. Solar flare risk remains centered on C-class events, with a negligible 1% probability of significant X-class activity.

🌌 Aurora

Aurora visibility is not expected for mid-latitudes (40-60°N).

more

Observers at high latitudes may see minimal, transient activity, but no significant displays are anticipated at this time.

👁 Watch for

Monitor the magnetic evolution of AR4508 as it rotates toward the center of the solar disk for potential shifts in complexity.

▸ Detailed readings

Radio blackout
 R0
(24 h max R0)
Radiation
 S0
(24 h max S0)
F10.7
 145.0
sfu

Region Location Class Flares C/M/X
AR4508 N07E27 Cso/B 2/0/0
AR4503 S17W67 Cao/B 1/0/0
AR4511 S09E53 Axx/A 0/0/0
AR4507 N04W00 Dsi/B 0/0/0
AR4510 N12W29 Cro/B 0/0/0
AR4506 N11W17 Bxo/B 1/0/0
AR4509 N11W75 Cao/B 0/0/0
NOAA messages
2026-08-14 10:54  Kp 4 expected (WARK04)
2026-08-14 07:15  ALTTP2 (ALTTP2)
2026-08-11 20:55  Kp 20 possible (WATA20)
2026-08-11 11:41  Proton flux UD summary (SUMSUD)
2026-08-11 10:47  Proton flux UD expected (WARSUD)


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