Solar Activity Report for 8/7/04
- The Earth, as predicted, did experience a brief solar wind gust on the
7th. It didn't set of widespread geomagnetic storm conditions, but it
was at least enough to trigger aurora in a few locations, as can be
seen in this picture taken in British Columbia :
Old sunspot region 649 has re-emerged over the eastern limb of the
solar disk. If you remember, this sunspot region fired off X-class
flares during it's last trip around. This time, however, it looks
smaller, and seems to have decayed substantially. Of the three
sunspot regions visible, none appear to have the ability to generate a
significant flare at this time.
The current solar and geomagnetic conditions are :
NOAA sunspot number : 71
SFI : 95
A index : 19
K index : 2
Solar wind speed : 469.7 km/sec
Solar wind density : 0.6 protons/cc
Solar wind pressure : 0.2 nPa
IMF : 6.5 nT
IMF Orientation : 1.3 nT South
GOES-12 Background X-Ray flux level : B1
Conditions for the last 24 hours :
Space weather for the past 24 hours has been minor. Geomagnetic storms
reaching the G1 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 very low to low. Regions 655 and 656
could produce an isolated C-class event.
Geomagnetic activity forecast :
The geomagnetic field is expected to be quiet to unsettled with
isolated periods of active conditions.
Recent significant solar flare activity :