Solar Activity Report for 3/31/04
- The solar wind speed has declined rather quickly since it's spike at
over 900 km/sec a few days ago as the Earth is exiting a high speed
coronal hole solar wind stream. Geomagnetic activity is expected to
be quiet over the next several days. Sunspot region 582, while not
generating any significant flares, has fired off several C-class
flares, including one very long duration event. Long duration events
are usually more likely to generate a CME, although I haven't seen one
mentioned anywhere yet. There are three numbered sunspot regions visible.
The current solar and geomagnetic conditions are :
NOAA sunspot number : 95
SFI : 121
A index : 10
K index : 1
Solar wind speed : 438.0 km/sec
Solar wind density : 2.7 protons/cc
Solar wind pressure : 0.9 nPa
IMF : 4.3 nT
IMF Orientation : 0.3 nT North
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 low to moderate levels. Region 582
remains capable of producing M-class flares.
Geomagnetic activity forecast :
The geomagnetic field is expected to be at predominantly quiet levels
with periods of unsettled conditions are anticipated throughout the
Recent significant solar flare activity :