Solar Activity Report for 3/6/04
- The Earth has exited the most recent high speed solar wind stream, and
the solar wind speed has returned to normal. However, there may be
some more activity on the horizon. First, a new, big sunspot region
has rotated into view. Sunspot region 570 is emerging over the
eastern limb of the solar disk. We'll get a better idea of its size
as it comes into full view. It has already started off with a bang,
generating an M-class flare early in the 6th. Also, a new coronal
hole has come into view, and will be in an Earth-pointing position in
a couple of days. We should see the high speed solar wind gusts from
it starting on or about the 10th.
The current solar and geomagnetic conditions are :
NOAA sunspot number : 61
SFI : 105
A index : 6
K index : 0
Solar wind speed : 366.4 km/sec
Solar wind density : 0.6 protons/cc
Solar wind pressure : 0.2 nPa
IMF : 4.4 nT
IMF Orientation : 0.1 nT North
Conditions for the last 24 hours :
Space weather for the past 24 hours has been minor. Radio blackouts
reaching the R1 level occurred.
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 low to moderate levels.
Geomagnetic activity forecast :
The geomagnetic field is expected to be quiet to unsettled through 7
and 8 March. The onset of an intense solar sector boundary crossing is
anticipated on 9 March, which precedes a recurrent high speed coronal
hole stream. Active to minor storm conditions are expected with the onset.
Recent significant solar flare activity :
06-Mar-2004 1217Z M1.3