Solar Activity Report for 5/25/02
- ** Aurora Watch In Effect **
The solar wind speed remains elevated this evening, which would
indicate that we are inside of the high speed solar wind stream from
the coronal hole I mentioned in my last report. Although the
geomagnetic field is calm for the time being, the high speed solar
wind gusts could cause some active periods, and an aurora watch is in
effect for the higher latitudes. A trio of sunspot regions, namely
9957, 9661, and 9663 have flare generating potential, although there
haven't been any significant flares in the last 48 hours.
The current solar and geomagnetic conditions are :
NOAA sunspot number : 221
SFI : 183
A index : 3
K index : 2
Solar wind speed : 439 km/sec
Solar wind density : 2.2 protons/cc
Solar wind pressure : 0.7 nPa
IMF : 8.3 nT
IMF Orientation : 4.3 nT South
Conditions for the last 24 hours :
No space weather storms were observed for the past 24 hours.
Forecast for the next 24 hours :
Space weather for the next 24 hours is expected to be minor. Radio
blackouts reaching the R1 level are expected.
Solar activity forecast :
Solar activity is expected to be at low to moderate levels. Regions
9957, 9961, and 9963 appear capable of isolated M-class flare
production. There is a slight chance for an isolated major flare
during the period.
Geomagnetic activity forecast :
Geomagnetic field activity is expected to be at quiet to unsettled
levels during most of the period. However, brief active intervals are
possible on 26 May due to recurrent coronal hole effects. There is a
slight chance for a proton event during the period.
Recent significant solar flare activity :