Solar Activity Report for 6/28/02
- Serving as proof once again that you don't necessarily need a strong
flare to create a CME, a partial-halo CME shot off of the southwestern
limb of the solar disk late yesterday. The most likely source was
somewhere around sunspot region 8, although there were no significant
flares recorded. The CME should be arriving here in about 2 days.
Active geomagnetic conditions are a possibility at that time. The
sunspot number remains unusually low for this time of the 11 year
The current solar and geomagnetic conditions are :
NOAA sunspot number : 94
SFI : 137
A index : 6
K index : 2
Solar wind speed : 355.0 km/sec
Solar wind density : 2.9 protons/cc
Solar wind pressure : 0.6 nPa
IMF : 3.9 nT
IMF Orientation : 1.0 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 :
No space weather storms are expected for the next 24 hours.
Solar activity forecast :
Solar activity is expected to be at very low to low levels.
Geomagnetic activity forecast :
Geomagnetic field activity is expected to be at quiet to unsettled
levels during the first half of the period. Mostly unsettled levels
are expected during the latter half of the period in response to
yesterday's partial halo CME.
Recent significant solar flare activity :