Solar Activity Report for 1/18/03
- The solar wind speed is creeping towards the 500 km/sec mark as a
coronal hole generated solar wind stream makes its presence known.
The solar wind speed could go higher over the next few days. What
we're receiving now is something of a glancing blow from a coronal
hole that's largely located in the southern hemisphere of the sun.
However, there's another part of that large coronal hole complex that
straddles the solar equator that's going to be in an Earth-pointing
position very soon. Don't be surprised to see a spike in the solar
wind speed along or about the 21st. There isn't much to report on the
sunspot front this evening. There are seven small sunspot regions
visible, but nine appear to have any flare generating potential at
The current solar and geomagnetic conditions are :
NOAA sunspot number : 148
SFI : 137
A index : 13
K index : 2
Solar wind speed : 460.6 km/sec
Solar wind density : 6.0 protons/cc
Solar wind pressure : 1.8 nPa
IMF : 14.2 nT
IMF Orientation : 1.1 nT South
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 very low to low for the next three
Geomagnetic activity forecast :
The geomagnetic field is expected to be predominantly unsettled for
the next three days.
Recent significant solar flare activity :