What to Expect from the Magnetic Storms on June 19–20 and Solar Activity
Between June 19 and 20, fluctuations in the geomagnetic field are forecast due to increased solar activity. Magnetic storms can affect the well-being of weather-sensitive people, causing headaches, fatigue, and increased stress levels.
Geomagnetic activity is measured on a scale from 0 to 9. The planetary K-index is used to indicate this; a reading of 5 or higher indicates a strong magnetic storm.
On Friday, June 19, solar activity with a K-index of 4 (yellow level) is expected, which corresponds to moderate magnetic storms.
On Saturday, June 20, solar activity with a K-index of 3.7 (green level) is expected, which corresponds to weak magnetic storms.
It is important to note that magnetic storm forecasts are subject to change, as solar activity researchers update their data every three hours.
Source: NOAA Space Weather Prediction Center (SWPC)
See also:
Magnetic Storm Calendar for June 2026: How to Prepare for Geomagnetic Disturbances
Retrograde Planets in June 2026: What to Watch For
