Solar Activity Report for 4/21/04
- Activity is beginning to increase a bit from the recent doldrums.
There are now four numbered sunspot regions visible, and one of them,
region 596, has managed to generate a significant flare. Look for
another M-class flare or two from this sunspot region. There's also a
small coronal hole that is rotating towards an Earth-pointing
position. Expect to see some solar wind gusts from that around the
beginning of next week. After providing a spectacular show, Comet
Bradfield has passed out of view of the SOHO satellite.
The current solar and geomagnetic conditions are :
NOAA sunspot number : 98
SFI : 113
A index : 9
K index : 1
Solar wind speed : 381.3 km/sec
Solar wind density : 5.9 protons/cc
Solar wind pressure : 1.3 nPa
IMF : 8.4 nT
IMF Orientation : 3.7 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 :
No space weather storms are expected for the next 24 hours.
Solar activity forecast :
Solar activity is expected to be low. Region 596 is expected to
continue producing C-class flares with a chance for an isolated
Geomagnetic activity forecast :
The geomagnetic field is expected to be predominately quiet to unsettled.
Recent significant solar flare activity :
22-Apr-2004 0219Z M1.2