Solar Activity Report for 3/11/04
- ** Aurora Watch In Effect **
The Earth has entered a high speed solar wind stream coming from a
coronal hole, and G-1 geomagnetic storm conditions have been observed
within the last 24 hours. The solar wind speed is close to the 650
km/sec mark, and an aurora watch is in effect. In fact, aurora have
already been spotted in Canada, Alaska, northern Europa, and as far
south as Wisconsin. See this link for some great aurora pictures :
More aurora are a definite possibility. The active conditions are
expected to last until the 14th, after which things will calm down.
Sunspot region 570, while quite large, has been quiet for several
days. Still, however, it has the potential to produce a significant
The current solar and geomagnetic conditions are :
NOAA sunspot number : 67
SFI : 113
A index : 27
K index : 4
Solar wind speed : 647.9 km/sec
Solar wind density : 1.3 protons/cc
Solar wind pressure : 1.1 nPa
IMF : 4.5 nT
IMF Orientation : 3.4 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.
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 low. Region 570 may produce C- and
isolated M-class flares.
Geomagnetic activity forecast :
The geomagnetic field is expected to be at unsettled to active
conditions, with isolated minor storming possible, on 12-13 March.
Activity should decrease on 14 March as the coronal hole moves out of
Recent significant solar flare activity :