Solar Watch — June 02, 2026 | 18:00 UTC

Solar Flare Activity — Last 12 Hours
Peak: M-class @ 10:05 UTC (5h 55min ago)
  M @ 04:45 UTC  ·  M @ 10:02 UTC

☀ HELIOS SOLAR WATCH · 2026-06-02 16:00 UTC
Stable geomagnetic conditions; AR4455 remains a source of M-class flares
SOLAR: UNSETTLED
GEO: QUIET

Active Regions
7
X-Ray
A/B (quiet)

Solar activity is currently moderate, characterized by quiet geomagnetic conditions and intermittent flare activity. While the Kp-index remains low, the solar disk exhibits notable complexity, particularly within Active Region 4455.

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: G0

Planetary Kp-Index
1.7
0–9 scale · ≥5 = geomagnetic storm

F10.7 Solar Flux
115.0
sfu · >150 = high activity

Geomagnetic conditions are currently quiet with a Kp-index of 1.7, indicating minimal interaction between the solar wind and Earth’s magnetosphere. Solar flux is holding at 115 sfu, supporting moderate levels of ionospheric density. Recent activity has been marked by a series of M-class flares originating from AR4455, though these have not yet resulted in significant geomagnetic disturbances.

Key Metric

The 40% probability of M-class flares from AR4455 is the primary metric to watch, as sustained flare activity may influence satellite communication and navigation systems.

Expect geomagnetic conditions to remain largely unsettled with Kp-values likely staying below 3.0. There is a persistent 40% probability of further M-class flare activity, primarily associated with the evolution of AR4455.

🌌 Aurora Outlook

Aurora visibility is not expected at mid-latitudes (40-60°N). Observers should anticipate quiet conditions with no significant visual auroral displays forecast for the next 24 hours.

Region Location Class Flares C/M/X
AR4459 N14E47 Bxo/B 0/0/0
AR4458 S04E05 Dao/B 0/0/0
AR4457 S08W42 Bxo/B 0/0/0
AR4455 N15W04 Cko/B 1/1/0
AR4449 S07W59 Bxo/B 0/0/0
AR4446 S15W62 Cso/B 0/0/0
AR4444 S22W87 Hsx/A 0/0/0
2026-06-01 17:54:30.903Space Weather Message Code: WARK04
2026-05-30 20:36:21.880Space Weather Message Code: ALTK04
2026-05-30 18:52:33.273Space Weather Message Code: WARK04
2026-05-29 19:52:21.683Space Weather Message Code: ALTK04
2026-05-29 19:32:57.610Space Weather Message Code: WARK04

Monitor the magnetic complexity of AR4455 for any structural changes that could indicate the potential for higher-intensity X-class flare development.