Weekly forecast

Forecast issued date:

Solar activity forecast for the period March 06 - March 12, 2026

Activity level: low to moderate
X-ray background flux (1.0-8.0 A): in the range B3.0-C2.5
Radio flux (10.7 cm): a fluctuation in the range 109-187
Events: class C (2-9/day), class M (0-1/period), class X (0-1/period), proton (0-1/period)
Relative sunspot number (Ri): in the range 57-119

Karolina Knesplova
RWC Prague, Astronomical Institute, Solar Dept., Ondrejov, Czech Republic

Geomagnetic activity forecast for the period March 06 - March 12, 2026

Quiet:  Mar 7 - 8
Unsettled: Mar 6, 9 - 10
Active: Mar 10 - 12
Minor storm:  about Mar 10 - 12
Major storm:  0
Severe storm: 0

Next day, we expect at most unsettled conditions with possible active event.
Coming weekend, we expect at most quiet to unsettled conditions.
Since March 10, another active events are possible with at most unsettled intermezzo.

Tomas Bayer
RWC Prague
Institute of Geophysics of the ASCR, Prague
Department of Geomagnetism
Budkov observatory (BDV)

Weekly Commentary on the Sun, the Magnetosphere, and the Earth's Ionosphere March 06 - March 12, 2026

Overall solar activity declined, with the number of sunspot groups ranging between three and six over the past week. Their magnetic configuration was simple, so no significant flares on the solar disk was observed.

However, the solar flux remained at a relatively high level of 130–148 s.f.u., which, together with a decrease in geomagnetic activity (no major disturbances, just alternating calm and moderately active days), resulted in improved conditions for shortwave propagation.

The current trend is expected to continue for the time being. A change will be caused by a decline in solar activity in the second decade of March. This will be very noticeable in the decline in solar radio flux.

F. K. Janda, A.R.S. OK1HH
http://ok1hh.nagano.cz/
Emails: ok1hh(at)crk.cz, ok1hh(at)rsys.cz
Pmail: OK1HH(at)OK0NAG.#BOH.CZE.EU

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