[Propagation+Space Weather] Today's Space Weather Forecast Discussion on 2015 Jun 02 1230 UTC

[nw7us@sunspotwatch.com]

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Here is the current forecast discussion on space weather and geophysical activity, issued 2015 Jun 02 1230 UTC.

Solar Activity

24 hr Summary: Solar activity remained at low levels. A C1 X-ray flare occurred near the West limb at 02/0702 UTC. Region 2356 (S16W01 Cao/beta), the largest region on the disk, showed minor development of its trailing spot followed by gradual decay. Minor development was also observed in the leader and trailer spot of Region 2359 (S14W09 Bxo/beta). All other regions remained stable through the period.

A Type II radio sweep was observed at 01/1333 UTC with an estimated velocity of 1026 km/s. This activity was associated with a CME observed in LASCO imagery leaving the Sun around the NE limb as a far-side event. On SDO/AIA 304 imagery, a filament, centered near S21W85, appeared to move off the SW limb beginning around 02/0300 UTC. Initial images in SOHO/LASCO chronograph imagery do not suggest an Earth directed component.

Forecast: Solar activity is expected to be very low with a chance for isolated C-flares for the forecast period (02-04 Jun).

Energetic Particle

24 hr Summary: The greater than 2 MeV electron flux was at normal levels and the greater than 10 MeV proton flux remained at background levels this period.

Forecast: The greater than 2 MeV electron flux is expected to be at normal levels for the forecast period (02-04 Jun). The greater than 10 MeV proton flux is expected to remain at background levels throughout the forecast period.

Solar Wind

24 hr Summary: Solar wind parameters continued at nominal levels. Solar wind were steady between 325 km/s and 345 km/s. Total magnetic field strength remained around 6 nT through the period. The Bz component was predominantly positive. The phi angle remained oriented in a positive (away) sector.

Forecast: Solar wind parameters are expected to continue at nominal levels for the forecast period (02-04 Jun).

Geospace

24 hr Summary: The geomagnetic field was at quiet levels.

Forecast: The geomagnetic field is expected to remain at mostly quiet levels for the forecast period (02-04 Jun).

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Live data: SunSpotWatch.com

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