[Propagation+Space Weather] Today's Space Weather Forecast Discussion on 2016 Jun 27 1230 UTC

[nw7us@sunspotwatch.com]

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Here is the current forecast discussion on space weather and geophysical activity, issued 2016 Jun 27 1230 UTC.

Solar Activity

24 hr Summary: Solar activity was very low. The largest flares of the period were two B3 flares at 26/1604 UTC and 27/0420 UTC as well as a B5/Sf at 27/0958 UTC. These flares occurred from a spotless plage region near N13E43. No Earth-directed CMEs were observed during the period.

Forecast: Solar activity is expected to be very low throughout the forecast period (27-29 Jun) with only a slight chance for C-class flares.

Energetic Particle

24 hr Summary: The greater than 2 MeV electron flux was at normal to high levels, reaching a maximum flux of 3,010 pfu at 26/1615 UTC. The greater than 10 MeV proton flux was at background levels throughout the period.

Forecast: The greater than 2 MeV electron flux is expected to be at moderate to high levels over the next three days (27-29 Jun). The greater than 10 MeV proton flux is expected to persist at background levels throughout the forecast period.

Solar Wind

24 hr Summary: Solar wind parameters continued to be slightly enhanced with solar wind speeds between 430 km/s and 546 km/s. Total field ranged from 1 nT to 9 nT with the Bz component between +/-7 nT. Phi angle was mostly in a a negative (towards) orientation.

Forecast: Slightly enhanced conditions are expected to continue through day one (27 Jun) as diminishing CH HSS effects persist. Nominal solar wind parameters are expected for days two and three (28-29 Jun).

Geospace

24 hr Summary: The geomagnetic field was quiet to unsettled with an isolated active period from 26/2100-2400 UTC due to CH HSS effects.

Forecast: The geomagnetic field is expected to be at quiet to unsettled levels on day one (27 Jun). Mostly quiet conditions are expected to return for days two and three (28-29 Jun) under a nominal solar wind regime.

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Live data: SunSpotWatch.com

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