27 day magnetic activity forecast

The parameter used for forecasting the magnetic activity in the 27 day forecast is the daily index DRX. DRX is the average of the hourly ranges (maximum minus minimum during each hour) in the X (northward) component of the magnetic field for each UT day. DRX values are provided for the polar cap, auroral zone, and the sub-auroral zone. The units are nanoteslas (nT).

27 Day Magnetic Activity Forecast (Graphic)

27 Day Magnetic Activity Forecast.  Description and text values follow.

27 Day Magnetic Activity Forecast (Text)

Long Term DRX Forecast (nT)
Date Zones
Polar Auroral Sub-Auroral
2024-12-13 40 66 10
2024-12-14 37 63 10
2024-12-15 46 56 11
2024-12-16 50 52 10
2024-12-17 50 63 10
2024-12-18 38 67 12
2024-12-19 39 70 10
2024-12-20 50 70 14
2024-12-21 46 70 10
2024-12-22 35 71 11
2024-12-23 36 72 14
2024-12-24 51 65 10
2024-12-25 42 68 14
2024-12-26 51 62 10
2024-12-27 47 59 12
2024-12-28 39 60 10
2024-12-29 41 53 11
2024-12-30 41 54 13
2024-12-31 34 59 10
2025-01-01 37 55 10
2025-01-02 31 57 10
2025-01-03 38 57 13
2025-01-04 43 56 14
2025-01-05 37 54 11
2025-01-06 41 55 10
2025-01-07 38 55 13
2025-01-08 42 53 10
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