Solar Watch — July 28, 2026 | 06:00 UTC

☀ Helios Solar Watch · 2026-07-28 04:00 UTC
QUIET

Solar activity is currently characterized by moderate flare production and unsettled geomagnetic conditions. While no significant storms are present, AR4494 remains the primary focus for potential M-class flare activity.

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 remain in the quiet-to-unsettled range with Kp values oscillating between 2 and 3.33.

more

Flare potential remains steady, with a 60% probability for M-class events originating from the current active regions as they rotate.

🌌 Aurora

Aurora visibility is not expected at mid-latitudes; activity will remain confined to high-latitude regions, likely providing minimal to no display for observers below 60 degrees latitude.

👁 Watch for

Monitor AR4494 for any signs of magnetic complexity growth that could elevate the risk of impulsive M-class solar flares.

▸ 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
AR4493 N05W86 Cso/B 1/0/0
AR4492 N16W35 Cso/BGD 0/0/0
AR4498 N14E76 Hax/A 0/0/0
AR4496 N05E20 Cao/B 0/0/0
AR4494 S04W14 Hsx/A 4/1/0
AR4495 S02W25 Dro/B 0/0/0
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