Weekly forecast

Solar activity forecast for the period July 12 - July 18, 2019

Activity level: mostly very low
X-ray background flux (1.0-8.0 A): in the range A6.5-A7.7
Radio flux (10.7 cm): a fluctuation in the range 67-69 f.u.
Events: class C (0/period), class M (0/period), class X (0/period), proton (0/period)
Relative sunspot number (Ri): in the range 0-25

Bozena Solarova
RWC Prague, Astronomical Institute, Solar Dept., Ondrejov, Czech Republic
e-mail: sunwatch(at)asu.cas.cz

Geomagnetic activity forecast for the period July 12 - July 18, 2019

Quiet: Jul 13 - 18
Unsettled: Jul 12, 17 - 19
Active: 0
Minor storm: 0
Major storm: 0
Severe storm: 0

Geomagntic activity summary:
Next week, we expect at most quiet to unsettled conditions. We do not expect any actives or storm effects.
The more unsettled conditions are expected at Friday, July 12, and, because of coronal hole 40/-3, also at the end of the forecasted period. i.e. July 17 - 18. Between these episodes, we expect at most quiet conditions.

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

Geomagnetic activity forecast for the period July 05 - July 31, 2019

Geomagnetic field will be: 
quiet on July 12 - 16, 25 - 26 
quiet to unsettled on July 8 - 9, 17, 20 - 21, (27) 
quiet to active on July 10 - 11, (19, 21, 24) 
unsettled to active on July 6 - 7, (18, 22 - 23, 28 - 31) 
active to disturbed on July 5 
 
Solar wind will intensify on July 5 - 7, (8 - 9,) 10 - 11, 
(17 - 19, 22 - 24) 
 
Remark: 
- Parenthesis means lower probability of activity enhancement. 

* Next Geomagnetic activity forecast will be issued on July 18 *
***         for the period July 19 - August 14, 2019         ***
 
F. K. Janda, OK1HH 
(from Czech Propagation Interested Group 
compiling this geomagnetic activity weekly forecasts since January 1978). 
Email: ok1hh(at)rsys.cz 
Pmail: OK1HH(at)OK0NAG.#BOH.CZE.EU

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