Solar Activity Report for 12/15/03
- The Earth is beginning to exit the high speed solar wind stream we've
been in for the past few days, and the solar wind speed is slowing
down. While G-1 geomagnetic storm conditions have been observed
within the last 24 hours, I don't expect much more in the way of
activity. The sunspot number remains low, and only two small sunspot
regions are visible. Neither appears to have the potential for
generating a major flare at the present time. Barring anything
unforseen, the next round of activity may arrive around the first of
next week as a pair of small coronal holes rotate into an
The current solar and geomagnetic conditions are :
NOAA sunspot number : 42
SFI : 101
A index : 27
K index : 2
Solar wind speed : 635.0 km/sec
Solar wind density : 1.3 protons/cc
Solar wind pressure : 0.9 nPa
IMF : 4.0 nT
IMF Orientation : 0.3 nT South
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.
Geomagnetic activity forecast :
The geomagnetic field is expected to remain at active to minor storm
levels through the remainder of the 15th. The field should subside to
quiet to unsettled levels for 16 - 18 Dec as the coronal hole rotates
out of geoeffective range.
Recent significant solar flare activity :