Solar Activity Report for 4/10/03
- ** Aurora Watch In Effect **
The solar wind speed has jumped up close to the 700 km/sec mark, and
an aurora watch is in effect. G-1 geomagnetic storm conditions have
been observed within the last 24 hours, and aurora have already been
spotted. See this link for some really good aurora pictures :
The large coronal hole that is causing all the action is in a direct
Earth-pointing position. Because of the coronal hole's size, we'll be
in the high speed solar wind stream for at least the next three days.
Sunspot-wise, there isn't much going on with only two numbered
sunspot regions visible, although a nice M-2 class flare was observed
yesterday. Look for the current increased geomagnetic level to stay
elevated along with the solar wind speed for a while, and more
geomagnetic storms are likely.
The current solar and geomagnetic conditions are :
NOAA sunspot number : 52
SFI : 104
A index : 27
K index : 4
Solar wind speed : 682.0 km/sec
Solar wind density : 1.4 protons/cc
Solar wind pressure : 1.4 nPa
IMF : 7.4 nT
IMF Orientation : 0.3 nT South
Conditions for the last 24 hours :
Space weather for the past 24 hours has been minor. Geomagnetic storms
reaching the G1 level occurred. Radio blackouts reaching the R1 level
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 :
09-Apr-2003 2329Z M2.5