Solar Activity Report for 4/8/03
- ** G-1 Geomagnetic Storm In Progress **
** Aurora Watch In Effect **
The Earth is beginning to move into a high speed solar wind stream,
and both the solar wind speed and density are increasing. It looks as
if the high speed solar wind may be arriving a day or so earlier than
expected. We weren't really supposed to be getting into it until
tomorrow. At any rate, aurora will be a possiility for the next few
days, and skywatchers, especially those in the higher latitudes,
should keep an eye out for aurora. G-1 gaomagnetic storm conditions
have been observed within the last 24 hours, and in fact are being
seen as I write this. The sunspot number is dropping, and is likely
to get even lower unless some new sunspot regions show up in the next
day or two. There are only three numbered sunspot regions currently
visible, and one of them is close to rotating out of view. None of
the sunspot regions appear to have the potential of generating a
significant flare at this time.
The current solar and geomagnetic conditions are :
NOAA sunspot number : 52
SFI : 112
A index : 18
K index : 5
Solar wind speed : 413.9 km/sec
Solar wind density : 6.3 protons/cc
Solar wind pressure : 2.2 nPa
IMF : 13.3 nT
IMF Orientation : 3.6 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 :
Space weather for the next 24 hours is expected to be minor.
Geomagnetic storms reaching the G1 level are expected.
Solar activity forecast :
Solar activity is expected to be at very low to low levels. Regions
325(N14W77) and 330 have C-class potential.
Geomagnetic activity forecast :
The geomagnetic field is expected to be at quiet to active levels.
Coronal hole high speed stream effects are expected on day two and day
three of the period.
Recent significant solar flare activity :