Solar Activity Report for 4/26/02
- The geomagnetic and solar radiation storms of earlier this week have
died down, but there is still some noteworthy activity. Judging from
the solar wind speed and density, I'd say we're now entering the high
speed solar wind stream from the coronal hole I mentioned a couple of
days ago. There haven't been any aurora watches posted, but that
could change, so stay tuned. There are a few sunspot groups visible
this evening, but none of them look as if they have any real
flare-generating potential at this time.
The current solar and geomagnetic conditions are :
NOAA sunspot number : 160
SFI : 163
A index : 3
K index : 2
Solar wind speed : 424.9 km/sec
Solar wind density : 7.1 protons/cc
Solar wind pressure : 2.2 nPa
IMF : 8.9 nT
IMF Orientation : 3.1 nT South
Conditions for the last 24 hours :
Space weather for the past 24 hours has been minor. Solar radiation
storms reaching the S1 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 low
c-class flares are expected.
Geomagnetic activity forecast :
The geomagnetic field is expected to become unsettled with isolated
active periods. A recurrent coronal hole is moving into a
geoeffectively favorable position; expect disturbed conditions to
develop this period.
Recent significant solar flare activity :