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Solar activity forecast for the period February 22 - February 28, 2019

Activity level: mostly very low
X-ray background flux (1.0-8.0 A): in the range A0.0-A1.3
Radio flux (10.7 cm): a fluctuation in the range 69-73 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

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

Geomagnetic activity forecast for the period February 22 - February 28, 2019

Quiet: Feb 24 - 27
Unsettled: Feb 22 - 24
Active: Feb 28
Minor storm: Feb 28
Major storm: 0
Severe storm: 0

Geomagnetic activity summary:
Next two days (Friday, February 22 and Saturday, February 23), we expect a most unsettled
conditions. Since Sunday, February 24, quiet conditions are expected till the last February 
day. Because of coronal hole 79/-4, we expect active condition return about February 28. 
Minor storming event is also possible.

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

Geomagnetic activity forecast for the period February 22 - March 20, 2019

Geomagnetic field will be: 
quiet on February 24 - 26, March 10, 15 - 16 
quiet to unsettled on February 23, March 4 - 7, 9, 11, 18 
quiet to active on February 22, March 3, 8, 12 - 14, 17, 19 - 20 
unsettled to active on February 27,  March 2 
active to disturbed on February 28, March 1 
 
Solar wind will intensify on on February 22, (28,) March (1 - 3, 6 - 9,) 
13 - 15, 20 
 
Remark: 
- Parenthesis means lower probability of activity enhancement.  
- Again there are changes in the configuration of activev areas, 
  so the predictability of the prognoses decreases and their 
  compilation is difficult. 
 
F. K. Janda, OK1HH 
(from Czech Propagation Interested Group 
compiling this geomagnetic activity weekly forecasts since January 1978). 
e-mail: ok1hh(at)rsys.cz 

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