Solar Activity Report for 6/6/02
- ** Aurora Watch In Effect **
A full-halo CME billowed off of the sun on 6/5, and is headed our way.
The most likely source of the event was probably sunspot region 9979.
There was no corresponding significant flare, which once again shows
that you don't necessarily need a big flare to create a CME. It should
arrive here sometime on the 7th, and active geomagnetic conditions are
a definite possibility. Thus, an aurora watch has been put into
effect. There is a coronal hole that is now in an Earth-pointing
position. We should be seeing some high speed solar wind gusts from
that around the 9th. There are several sunspot groups visible this
evening, but none look as if they have any major flare generation
potential. There is a small chance for an M-class flare from 9973.
The current solar and geomagnetic conditions are :
NOAA sunspot number : 190
SFI : 155
A index : 6
K index : 2
Solar wind speed : 330.2 km/sec
Solar wind density : 5.7 protons/cc
Solar wind pressure : 1.0 nPa
IMF : 3.8 nT
IMF Orientation : 2.5 nT North
Conditions for the last 24 hours :
No space weather storms were observed for the past 24 hours.
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. A small chance of an isolated
M-class flare in 9973 remains.
Geomagnetic atcivity forecast :
The geomagnetic field is expected to be quiet to active over the next
48 hours in response to a CME that occurred on 05 June.
Recent significant solar flare activity :