Solar Watch — August 16, 2026 | 06:00 UTC

☀ Helios Solar Watch · 2026-08-16 04:00 UTC
QUIET

Solar activity is currently subdued, characterized by quiet geomagnetic conditions and a lack of significant solar flares. Earth’s environment remains stable with no active space weather threats at this time.

HMI Continuum Intensity

Visible light · 8 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

Geomagnetic conditions are expected to remain at quiet levels, with Kp indices hovering between 1 and 2 over the next 24 hours.

more

The probability of M-class flares remains low at 15%, meaning communication and satellite systems should experience normal operational conditions.

🌌 Aurora

Auroral activity is expected to be confined to the high polar latitudes.

more

Mid-latitude observers should not expect any significant displays during this period.

👁 Watch for

Monitor the development of Active Region 4507 and 4508 for any growth in magnetic complexity that could increase the probability of M-class flare production.

▸ Detailed readings

Radio blackout
 R0
(24 h max R0)
Radiation
 S0
(24 h max S0)
F10.7
 128.0
sfu

Region Location Class Flares C/M/X
AR4507 N04W15 Dai/B 2/0/0
AR4503 S17W81 Cso/B 0/0/0
AR4509 N10W89 Cso/B 0/0/0
AR4511 S09E40 Axx/A 0/0/0
AR4506 N11W31 Dri/B 2/0/0
AR4510 N12W44 Hrx/A 0/0/0
AR4512 S19W15 Cro/B 0/0/0
AR4508 N08E15 Cso/B 1/0/0
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