Solar Activity Report for 4/19/03
- Geomagnetic activity is winding down tonight as the Earth exits the
high speed solar wind stream that has been influencing Earth's
geomagnetic environment for the last several days. Although the solar
wind speed is still well above 500 km/sec, no forther significant
geomagnetic activity is expected for the next several days. The solar
wind speed is expected to decline during the period. There are now
three sunspot regions visible, and the sunspot number has increased a
little from it's low of 37 a couple of days ago. None of the sunspots
visible, however, look to have any potential for producing significant
flares for the time being. Look for things to be relatively quiet for
the next few days unless something unexpected happens, which is always
The current solar and geomagnetic conditions are :
NOAA sunspot number : 69
SFI : 112
A index : 13
K index : 3
Solar wind speed : 547.8 km/sec
Solar wind density : 4.7 protons/cc
Solar wind pressure : 2.3 nPa
IMF : 6.6 nT
IMF Orientation : 4.4 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 :
No space weather storms are expected for the next 24 hours.
Solar activity forecast :
Solar activity is expected to be low for the next three days.
Geomagnetic activity forecast :
The geomagnetic field is expected to be at quiet to unsettled levels
for the next three days.
Recent significant solar flare activity :