NOAA’s Space Weather Prediction Center reports that the planetary Kp index has reached 5.0, putting conditions at the G1 (Minor) level on the five-step geomagnetic storm scale. This is the lowest and most common category of geomagnetic storm, triggered when a stream of charged particles from the sun disturbs Earth’s magnetic field.
For most people, the only noticeable effect of a G1 storm is the aurora. If skies are clear and dark tonight, the northern lights may be visible across the northern-tier United States, as well as Canada, Scotland, and Scandinavia. In the northern US, auroras can appear as a faint green or white glow low on the northern horizon, even when the classic dancing curtains stay farther north.
Impacts to technology at this level are minor. Power grid operators may see small fluctuations, and satellite operators may need to make minor adjustments, but everyday services like electricity, cell phones, and internet are not expected to be disrupted. Some research suggests migratory animals that navigate using Earth’s magnetic field can be temporarily disoriented during storms like this.
What to watch for
If you live in a northern state, check the sky after dark away from city lights — aurora forecasts update through the night. There is no need to unplug electronics or change plans; a G1 storm is a routine event that occurs dozens of times per solar cycle. If the Kp index climbs higher (G2 or above), aurora visibility would extend farther south, and we will update this alert.
Data for this alert comes from NOAA’s Space Weather Prediction Center.
Frequently Asked Questions
Will this storm knock out my power or damage my electronics?
No. G1 is the weakest storm category and causes only minor fluctuations that grid operators routinely manage. Your home electricity and devices are not at risk.
Can I see the northern lights tonight?
If you are in a northern-tier US state, Canada, Scotland, or Scandinavia, you have a decent chance, weather permitting. Find a dark spot away from city lights and look north after full darkness.
How long will this geomagnetic storm last?
G1 conditions typically persist for several hours and can fluctuate through the night as the solar wind stream passes Earth. Conditions will gradually return to quiet levels.
Could this storm get stronger?
It is possible for Kp to rise if the solar wind intensifies, but NOAA currently rates this at G1 (Minor). If it strengthens, aurora visibility would extend farther south and we will update this alert.
Keep tracking this:
Source: NOAA Space Weather Prediction Center
Sky & Solar Conditions at the Time
Moon: Waning Crescent (9% illuminated), in Leo.
Notable planetary angles: Jupiter trine Saturn (122°), Sun sextile Mars (58°), Moon trine Saturn (117°).
Concurrent space weather: planetary Kp index 5.0; strongest recent solar flare: nothing notable.
This is a factual snapshot, not a claim of cause and effect – researchers are divided on whether lunar, planetary or solar factors influence seismic or weather activity. It’s included so readers can track the pattern for themselves over time.
