Solar Activity Report for 4/28/04
- View SourceThe solar wind speed is up slightly, indicating that the Earth has
moved into an area of higher speed solar wind coming from a small
coronal hole. There hasn't been much of an increase in the speed,
however, and no geomagnetic storm conditions have been observed. The
best chance of significant activity may come on the 29th and 30th.
Ironically, it would be from a relatively insignificant event.
Sunspot region 599 fired off a C-3 class flare on the 27th. That's a
low level flare, but it launched a CME in our direction, proving once
again that you don't necessarily need a strong flare to have a CME.
The CME is expected to arrive at Earth on or about the 29th, and
geomagnetic storm conditions are a possibility. Stay tuned!
The current solar and geomagnetic conditions are :
NOAA sunspot number : 32
SFI : 90
A index : 10
K index : 1
Solar wind speed : 506.3 km/sec
Solar wind density : 2.2 protons/cc
Solar wind pressure : 0.8 nPa
IMF : 4.9 nT
IMF Orientation : 0.1 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 very low to low. Isolated C-class
flares are possible from Regions 596 and 599.
Geomagnetic activity forecast :
The geomagnetic field is expected to be at quiet to unsettled levels,
with isolated active to minor storm conditions possible on day two (30
April). Activity should return to quiet to unsettled levels on 1 May.
Recent significant solar flare activity :