Solar Activity Report for 3/05/05
- ** Aurora Watch In Effect **
G-1 geomagnetic storm conditions have been observed within the last 24
hours. The solar wind speed is a bit elevated, and the density is
higher than I've seen it in awhile. I suspect that the Earth is
beginning to move inside of a coronal hole solar wind stream.
Geomagagnetic storm conditions are expected to occur on and off
through the next few days, and an aurora watch is in effect. People
in the higher latitudes should keep an eye to the sky, especially
around local midnight. For reasons not thoroughly understood,
geomagnetic activity tends to be higher around the time of the
equinoxes, and we are approaching the vernal equinox. There is a
single sunspot region visible, but it doesn't look to have the ability
to generate a significant flare for the time being.
The current solar and geomagnetic conditions are :
NOAA sunspot number : 22
SFI : 81
A index : 9
K index : 4
Solar wind speed : 467.8 km/sec
Solar wind density : 14.7 protons/cc
Solar wind pressure : 5.3 nPa
IMF : 8.8 nT
IMF Orientation : 0.8 nT South
GOES-12 Background X-ray Flux level : A4
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 at very low to low levels throughout
Geomagnetic activity forecast :
The geomagnetic field is expected to range from quiet to minor storm
levels during the period. A recurrent high speed coronal hole stream
is expected to become geoeffective beginning on 6 March. The coronal
hole effects are expected to last for several days. Periods of
isolated minor storm conditions are possible on 7 March. Predominantly
unsettled to active conditions are expected on 8 March.
Recent significant solar flare activity :