Solar Activity Report for 2/14/03
- ** Aurora Watch In Effect **
This Valentine's Day finds the Earth inside a coronal hole generated
solar wind stream, and the solar wind speed is over the 550 km/sec
mark. Geomagnetic storm conditions are a possibility in the higher
latitudes, and folks should keep an eye out for aurora around the
hours of local midnight and after. There are five sunspot regions
currently visible on the solar disk tonight, and all on the western
side of it. None of them appear to have any significant flare
generating potential at this time. Look for the sunspot number to
start coming down if no new sunspot regions appear over the next two
or three days. The elevated solar wind speeds are expected to
continue for at least another 48 hours, as this coronal hole is a
pretty good sized one.
The current solar and geomagnetic conditions are :
NOAA sunspot number : 113
SFI : 131
A index : 19
K index : 4
Solar wind speed : 556.3 km/sec
Solar wind density : 4.1 protons/cc
Solar wind pressure : 1.8 nPa
IMF : 13.1 nT
IMF Orientation : 6.3 nT North
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.
Geomagnetic activity forecast :
The geomagnetic field is expected to be at predominantly unsettled to
active levels. Minor storm conditions are possible, especially at high
latitudes, beginning on day one due to a large recurrent coronal hole.
Recent significant solar flare activity :