Solar Activity Report for 2/19/05
- Sunspot region 735 had been showing signs of increasing magnetic
complexity, and earlier today, it fired of an M3.3 flare, the first
significant flare in awhile. No word yet on whether a CME was
launched in our direction. Stay tuned for more information about
that. Meanwhile, the Earth is exiting a ccoronal hole solar wind
stream. The is another coronal hole that has rotated into view over
the eastern limb of the solar disk. If it holds together long enough
to get into an Earth-pointing position, my guess is we could see some
high speed solar wind gusts from it in a week to 10 days.
The current solar and geomagnetic conditions are :
NOAA sunspot number : 51
SFI : 99
A index : 14
K index : 4
Solar wind speed : 470.3 km/sec
Solar wind density : 1.9 protons/cc
Solar wind pressure : 0.7 nPa
IMF : 8.0 nT
IMF Orientation : 3.2 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. Radio blackouts
reaching the R1 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 at low levels. Region 735 has the
potential of producing isolated C-class flares.
Geomagnetic activity forecast :
The geomagnetic field is expected to be at predominantly quiet to
unsettled levels throughout the period.
Recent significant solar flare activity :
19-Feb-2005 1101Z M3.3