The Earth is exiting the high speed solar wind stream that it has been
inside of for several days. The respite may be only temporary,
however, as another coronal hole is just now crossing the sun's
central meridian. As mentioned in my last report, it may be situated
too far south to affect us here, but my guess is that we will see at
least some mild solar wind gusts from it. If we do see anything from
it, it will be on or about the 16th. Sunspot region 30 has grown
quite dramatically and now covers over a dozen Earth diameters from
end to end. Although it has been relatively quiet over the last 2
days, it looks like it has the potential of generating a major flare.
The current solar and geomagnetic conditions are :
NOAA sunspot number : 152
SFI : 144
A index : 4
K index : 2
Solar wind speed : 318.8 km/sec
Solar wind density : 4.6 protons/cc
Solar wind pressure : 0.7 nPa
IMF : 2.6 nT
IMF Orientation : 1.6 nT South
Conditions for the last 24 hours :
No space weather storms were observed for the past 24 hours.
Forecast for the next 24 hours :
Space weather for the next 24 hours is expected to be minor. Radio
blackouts reaching the R1 level are expected.
Solar activity forecast :
Solar activity is expected to be at moderate levels. There is a chance
that Region 30 could produce another major flare.
Geomagnetic activity forecast :
The geomagnetic field is expected to be at predominantly quiet to
unsettled levels through day one. Days two and three may experience
periods of active conditions due to a favorably positioned coronal
Recent significant solar flare activity :