10/10/2026
Solar Storm Watch: NOAA Forecasts G2 Geomagnetic Activity
Solar activity could bring increased geomagnetic disturbances over the next several days, according to NOAA's October 10 forecast.
The Space Weather Prediction Center expects G1 (Minor) geomagnetic storm conditions late October 10 and October 11, with G1 to G2 (Moderate) conditions possible on October 12.
Several coronal mass ejections, or CMEs, are expected to contribute to the activity. These are large eruptions of magnetized plasma from the Sun that can disturb Earth's magnetic environment.
A G2 storm can create opportunities for auroras at some northern latitudes, but visibility depends on the actual magnetic conditions, local darkness, and cloud cover.
Importantly, NOAA's forecast does not mean G2 conditions have already occurred. Its October 10 forecast reported that the previous 24-hour maximum Kp was only 3, below geomagnetic storm levels.
We'll be watching to see whether the anticipated solar material actually produces stronger conditions near Earth.
Source: NOAA Space Weather Prediction Center
Forecast issued October 10, 2026, at 12:30 UTC
:Product: 3-Day Forecast :Issued: 2026 Sep 21 0030 UTC # Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center # A. NOAA Geomagnetic Activity Observation and Forecast The greatest observed 3 hr Kp over the past 24 hours was 3 (below NOAA Scale levels). The greatest expected 3...
