Solar Watch — July 12, 2026 | 18:00 UTC

Solar Flare Activity — Last 12 Hours
Peak: M-class @ 08:11 UTC (7h 49min ago)
  M @ 08:04 UTC

☀ HELIOS SOLAR WATCH · 2026-07-12 16:00 UTC
Active geomagnetic conditions persist; minor G1 storm levels observed
SOLAR: UNSETTLED
GEO: UNSETTLED

Active Regions
4
X-Ray
A/B (quiet)

Geomagnetic activity is currently at an unsettled state, peaking at G1 storm thresholds due to an increasing Kp trend. Solar activity remains moderate with recent M-class flare production.

HMI Continuum Intensity

HMI Continuum · Visible Light

SUVI 304 — Extreme UV

SUVI 304Å · Extreme Ultraviolet

R0
Radio Blackouts
24h max: R0

S0
Solar Radiation
24h max: S0

G0
Geomagnetic Storm
24h max: G1

Planetary Kp-Index
4.7
0–9 scale · ≥5 = geomagnetic storm

F10.7 Solar Flux
132.0
sfu · >150 = high activity

The planetary K-index has reached 4.7, indicating minor geomagnetic instability. While X-ray flux has returned to nominal levels following an M-class flare earlier today, the solar environment remains dynamic with six active regions currently monitored. The F10.7 index of 132 sfu reflects a moderate level of solar radiation.

Key Metric

The current Kp-index of 4.7 is the primary indicator of geomagnetic instability, serving as the benchmark for potential electrical grid fluctuations and aurora visibility.

Geomagnetic activity is expected to gradually subside from G1 levels over the next 12 hours. Kp values should taper off to approximately 3.3 by early tomorrow, returning the magnetosphere to a calmer state.

🌌 Aurora Outlook

Minor aurora displays are possible at high latitudes (above 60°N) for the next several hours as the current G1 activity tapers off. Mid-latitude observers are unlikely to see significant activity, but should remain vigilant if Kp-index rebounds.

Region Location Class Flares C/M/X
AR4487 N09W28 Bxo/B 0/0/0
AR4482 S08W29 Cho/B 0/0/0
AR4488 N23W25 Bxo/B 0/0/0
AR4485 S10W82 Dac/BG 1/1/0
2026-07-12 15:03:18.830Space Weather Message Code: ALTK05
2026-07-12 14:11:40.570Space Weather Message Code: WARK05
2026-07-12 05:32:05.277Space Weather Message Code: ALTEF3
2026-07-12 03:46:36.093Space Weather Message Code: ALTK04
2026-07-12 02:12:08.397Space Weather Message Code: ALTTP4

Monitor the decay of active region AR4485 as it rotates toward the solar limb, as it remains the primary source for potential follow-up flare activity.