Solar Watch — July 28, 2026 | 18:00 UTC

☀ Helios Solar Watch · 2026-07-28 16:00 UTC
QUIET

Current solar conditions are quiet, though geomagnetic activity is expected to see a brief increase in the next few hours. Nine active regions are present on the disk, maintaining a consistent moderate-level solar flux.

HMI Continuum Intensity

Visible light · 6 active regions

SUVI 304 — Extreme UV

Extreme UV · 304 Å

Kp Index
2.3
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 conditions are expected to transition to unsettled levels reaching Kp 3.67 by late in the cycle.

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Flare activity will likely remain focused on the C-class level, with a 60% probability of M-class events due to the current complexity of the visible active regions.

🌌 Aurora

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

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Observers at high latitudes may see minimal activity as the Kp-index rises toward 3.67, but widespread displays are unlikely.

👁 Watch for

Monitor the complexity of AR4498 and AR4496 as they continue their transit; any rapid magnetic configuration changes could increase the probability of M-class flaring.

▸ Detailed readings

Radio blackout
 R0
(24 h max R0)
Radiation
 S0
(24 h max S0)
F10.7
 111.0
sfu

Region Location Class Flares C/M/X
AR4492 N16W47 Hsx/A 0/0/0
AR4496 N05E06 Cao/B 1/0/0
AR4499 N04E33 Cro/B 0/0/0
AR4498 N13E63 Cao/B 1/0/0
AR4495 S03W38 Cro/B 0/0/0
AR4494 S03W27 Cso/B 1/0/0
NOAA messages
2026-07-27 14:53  Electron flux F3 reached (ALTEF3)
2026-07-27 04:03  ALTTP2 (ALTTP2)
2026-07-24 08:56  Kp 4 expected (WARK04)
2026-07-23 23:47  Kp 5 (G1) expected (WARK05)
2026-07-23 20:15  Kp 5 (G1) reached (ALTK05)


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