Solar Activity Report for 3/3/02
- ** Aurora Watch In Effect **
It is projected that the Earth will enter a high speed solar wind
stream within the next 36 hours, and an aurora watcj has been issued.
The cause of the high speed stream is a large coronal hole that is
now straddling the sun's central meridian, and pointing squarely at
Earth. Minor geomegnetic storm conditions are possible. Skywatchers
in northern Europe, Canada, and the northern tier of the US should
keep an eye out for aurora after local sunset on March 4th and 5th.
Sunspot region 9845 is the only sunspot region visible right now that
looks like it has the potential of producing an M-class flare.
The current solar and geomagnetic conditions are :
NOAA sunspot number : 169
SFI : 183
A index : 12
K index : 3
Solar wind speed : 387.6 km/sec
Solar wind density : 13.5 protons/cc
Solar wind pressure : 3.3 nPa
IMF : 15.9 nT
IMF Orientation : 6.5 nT North
Conditions for the last 24 hours :
Solar activity was low. The geomagnetic field was quiet to active.
Stratwarm Alert exists Sunday.
Forecast for the next 24 hours :
Solar activity will be low to moderate. The geomagnetic field will be
quiet to active.
Solar activity forecast :
Solar activity is expected to be predominantly low, with Region 9845
remaining a possible source of isolated moderate activity.
Geomagnetic activity forecast :
The geomagnetic field is expected to be at unsettled to active levels,
with the onset of high speed stream effects from a recurrent coronal
hole during the next 24-36 hours. Active and isolated minor storm
conditions are expected to occur thereafter through the end of the
Recent significant solar flare activity :