Solar Watch — July 31, 2026 | 18:00 UTC

☀ Helios Solar Watch · 2026-07-31 16:00 UTC
UNSETTLED

Solar activity remains in a quiet-to-unsettled phase as the geomagnetic field holds steady. While current conditions are benign, the presence of multiple active regions sustains a significant probability of moderate solar flares.

HMI Continuum Intensity

Visible light · 8 active regions

SUVI 304 — Extreme UV

Extreme UV · 304 Å

Kp Index
2.0
5 or above = storm

Geomagnetic
G0
24 h max: G0

X-Ray
A/B
quiet


⚠ ALTPX1 · 4 more below
Next 24 h

Geomagnetic conditions are expected to remain largely unsettled, with a brief uptick to Kp 3.67 anticipated later today.

more

Solar flare activity remains the primary focus, with a 70% probability of M-class flares occurring as active regions continue to develop.

🌌 Aurora

Aurora visibility is not expected at mid-latitudes.

more

Observers in high-latitude regions may see minor activity, but clear conditions are required for optimal viewing.

👁 Watch for

Monitor the magnetic complexity of AR4498 and AR4500, as their evolution will dictate the likelihood of impulsive M-class flare events in the next 24 hours.

▸ Detailed readings

Radio blackout
 R0
(24 h max R0)
Radiation
 S1
(24 h max S0)
F10.7
 111.0
sfu

Region Location Class Flares C/M/X
AR4494 S05W70 Hrx/A 0/0/0
AR4495 S04W83 Axx/A 0/0/0
AR4498 N14E22 Dai/BG 0/0/0
AR4496 N05W37 Cao/B 0/0/0
AR4500 N18E28 Dao/B 0/0/0
AR4499 N05W08 Dao/BGD 2/0/0
AR4492 N15W88 Hax/A 0/0/0
AR4501 S08W12 Cao/B 0/0/0
NOAA messages
2026-07-31 13:37  ALTPX1 (ALTPX1)
2026-07-31 13:36  WARPX1 (WARPX1)
2026-07-31 11:05  Kp 30 possible (WATA30)
2026-07-31 09:08  SUMPX1 (SUMPX1)
2026-07-31 01:56  ALTPC0 (ALTPC0)


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