Solar Activity Report for 6/7/03
- ** Aurora Watch In Effect **
The solar wind speed is on the high side of 700 km/sec tonight as a
result of high speed solar wind from a coronal hole, and G-1
geomagnetic storm conditions have been observed within the last 24
hours. As a result, an aurora watch remains in effect. Skywatchers
should keep an eye out for aurora, especially in the higher latitudes.
The high speed solar wind is expected to persist for the next three
days. Expect to see on-and-off geomagnetic storm conditions
throughout the period. On the sunspot scene, sunspot region 375 has
grown rapidly in size and magnetic complexity, and now spans ten
Earth-diameters from end to end. It is also in an Earth-pointing
position, so any CME's it might happen to kick off would likely be
headed our way. A major flare from this sunspot region isn't out of
the question. It has already produced a low-level M-class flare, that
coming on the 6th.
The current solar and geomagnetic conditions are :
NOAA sunspot number : 125
SFI : 133
A index : 22
K index : 4
Solar wind speed : 743.4 km/sec
Solar wind density : 2.3 protons/cc
Solar wind pressure : 2.3 nPa
IMF : 5.8 nT
IMF Orientation : 0.1 nT South
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 :
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 375 and 380
both have the potential for continued C-class and M-class flaring.
There is a chance for an isolated X-class event from Region 375.
Geomagnetic actviity forecast :
The geomagnetic field is expected to be primarily unsettled to active
with periods of minor storm conditions for the next three days. These
conditions are expected due to a recurrent coronal hole.
Recent significant solar flare activity :
06-Jun-2003 2338Z M1.0