Solar activity, geomagnetic conditions, and operational impact assessment
Kp Index
1.7
low stormRisk Score
22
/100 analytical
Solar Flares (7d)
2
M-class detected
Geomagnetic Storm
None
Ionospheric disturbances can degrade GPS accuracy by 2–10m at high Kp. HF radio blackouts possible during X-flares.
Elevated atmospheric heating expands thermosphere, increasing drag on LEO satellites. Orbit decay accelerated at Kp ≥ 5.
HF radio blackouts affect transpolar flight communications. Airlines may reroute away from polar tracks during major events.
Geomagnetically induced currents (GIC) can stress high-voltage transformers. G4–G5 storms historically caused grid failures.
Current radiation storm level: S1 - Minor. Solar energetic particles impact spacecraft electronics and crewed missions.
Moderate M-class flare with limited radio blackout potential.
Minor C-class event, no significant impacts expected.
Coronal Mass Ejections
2026-07-31 02:24 UTC
CME first seen to the NW in SOHO LASCO C2 starting around 2026-07-31T02:24Z. It is also seen to the NW in SOHO LASCO C3 and GOES CCOR-1. There is a faint feature in STEREO A COR2 that could be associated, but the leading edge is not trackable in COR2A. This front is most likely outflow following CME: 2026-07-30T16:53Z.
2026-07-31 03:08 UTC
CME first seen to the NNW in STEREO A COR2 starting at 2026-07-31T03:08Z. While there is not a definite source candidate, this feature could possibly be related to some post eruptive arcades centered around N00W135 seen in STA EUVI 195 and STA EUVI 304 SW of former AR 14493 beginning around 2026-07-31T03:05Z.
2026-07-31 03:24 UTC
Very faint feature first seen to the N in SOHO LASCO C2 starting around 2026-07-31T03:24Z. This feature may be seen to the NNE in STEREO A COR2, but the image quality is too poor to be sure. The majority of the CME is obscured by the pylon in both SOHO LASCO C3 and GOES CCOR-1. The source of this CME may be a filament eruption near the NW limb centered around N40-50W70-80 and best seen in SDO AIA 304 and SDO AIA 193. The filament starts to rise off the disk about 2026-07-31T00:30Z and "snaps" around 2026-07-31T02:00Z, but the majority of the associated material appears to fall back to the disk. Additionally, this CME may simply be outflow following CME: 2026-07-30T16:53Z.
2026-07-31 08:08 UTC
CME first seen to the NW in STEREO A COR2 starting at 2026-07-31T08:08Z. It is also seen to the NE in GOES CCOR-1 but is covered by a real-time data gap in SOHO LASCO C2/C3. This is most likely outflow following CME: 2026-07-30T16:53Z. No additional source has been identified for this front.
2026-07-31 15:23 UTC
Faint CME observed to the E in STEREO A COR2, and faintly to the W/NW in GOES CCOR-1. The source is likely an area of diffuse dimming centered ~S20W35, observed in SDO AIA 193 starting around 2026-07-31T12:54Z.
No active geomagnetic storm detected.
NOAA Alert Levels