** Aurora Watch In Effect **
The coronal hole solar wind stream I mentioned in my last report made
its arrival early Monday morning EDT. The event triggered a G-2 class
geomagnetic storm, and some impressive aurora were produced. See this
link for a beautiful aurora display that was photographed over North
Dakota : http://www.prairiejournal.com/2002northernlights/093002.htm
More aurora are possible this evening, and skywatchers in the higher
latitudes should keep an eye out to the north around local midnight.
On the flare front, sunspot region 134 has been active recently,
firing off 4 M-class flares in the last 4 days, the strongest being a
nice M2.8 eruption. More flares are possible from this region.
The current solar and geomagnetic conditions are :
NOAA sunspot number : 94
SFI : 140
A index : 24
K index : 2
Solar wind speed : 386.8 km/sec
Solar wind density : 8.6 protons/cc
Solar wind pressure : 1.7 nPa
IMF : 22.2 nT
IMF Orientation : 1.7 nT South
Conditions for the last 24 hours :
Space weather for the past 24 hours has been moderate. Geomagnetic
storms reaching the G2 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. Radio blackouts
reaching the R1 level are expected.
Solar activity forecast :
Solar activity is expected to be low to moderate. Region 134 remains
capable of producing M-class events.
Geomagnetic activity forecast :
The geomagnetic field is expected to be predominately quiet to
unsettled with isolated active conditions possible on 01 October.
Recent significant solar flare activity :
30-Sep-2002 0150Z M2.1
29-Sep-2002 0639Z M2.6