Solar Activity Report for 3/4/03
- View Source** Aurora Watch In Effect **
The Earth is now inside of a high speed coronal hole solar wind
stream, and geomagnetic storm conditions have been observed within the
last 24 hours. Skywatchers in the higher latitudes should be on the
lookout for aurora tonight. The high speed solar wind is expected to
persist for at least the next 24 hours. On the sunspot scene, sunspot
region 296 is by far the biggest region currently visible, and poses a
threat for M-class flares. There are four sunspot regions visible,
and the sunspot number, while not really high, is the highest it's
been in quite a while.
The current solar and geomagnetic conditions are :
NOAA sunspot number : 160
SFI : 146
A index : 20
K index : 3
Solar wind speed : 459.2 km/sec
Solar wind density : 3.8 protons/cc
Solar wind pressure : 1.2 nPa
IMF : 5.4 nT
IMF Orientation : 0.1 nT North
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 continue at low levels. Isolated C-class
flares are possible primarily from Region 296, with a slight chance of
a low M-class flare.
Geomagnetic actviity forecast :
The geomagnetic field is expected to continue at unsettled to active
levels early, but will return to quiet to unsettled levels late on day
one as the high speed stream subsides. Isolated active periods at
mostly higher latitudes are possible through the next three days.
Recent significant solar flare activity :