Solar Activity Report for 3/17/04
- The Earth has moved out of the high speed solar wind stream it has
been inside of the past few days. The event did trigger some nice
aurora displays in the higher latitudes. Aurora were spotted in WI
and MN, but the majority of the sightings were in northern Europa,
Canada, and Alaska. See this link for some great pictures :
With the solar wind speed back to normal, no more significant
activvity is expected for the week. There is a small coronal hole
that's in view, but it's located too far north on the solar disk to
send much of anything out way. As I write this, I see there has just
been an M-class flare. It looks to be a short duration event of about
M1.7 or so. No idea where it came from yet. There are four small
sunspot regions currently visible.
The current solar and geeomagnetic conditions are :
NOAA sunspot number : 394
SFI : 110
A index : 8
K index : 3
Solar wind speed : 383.9 km/sec
Solar wind density : 3.0 protons/cc
Solar wind pressure : 0.9 nPa
IMF : 5.3 nT
IMF Orientation : 2.1 nT South
Conditions for the last 24 hours :
Space weather for the past 24 hours has been minor. Radio blackouts
reaching the R1 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 at low levels. Region 574 has a small
chance of producing an isolated low-level M-class flare.
Geomagnetic activity forecast :
The geomagnetic field is expected to be at quiet to unsettled levels.
Recent significant solar flare activity :
18-Mar-2004 0620Z (estimated) M1.7 (estimated)