Solar Activity Report for 8/21/04
- As expected, the activity level has dropped dramatically since the
departure of sunspot region 656. The sunspot number hasn't dropped,
however, as there are four numbered sunspot regions visible. None of
them, however, appear to have the ability to launch a significant
flare for the time being. There is a small coronal hole that is now
in an Earth-pointing position. We could see some solar wind gusts
from it on or about the 22nd.
The current solar and geomagnetic conditions are :
NOAA sunspot number : 88
SFI : 120
A index : 22
K index : 3
Solar wind speed : 472.8 km/sec
Solar wind density : 1.0 protons/cc
Solar wind pressure : 0.4 nPa
IMF : 5.3 nT
IMF Orientation : 4.7 nT South
GOES-12 Background Solar X-ray flux : B2
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 very low to low. Isolated C-class
flares are possible.
Geomagnetic activity forecast :
The geomagnetic field is expected to be quiet to active with isolated
minor storm periods.
Recent significant solar flare activity :