[Propagation+Space Weather] Today's Space Weather Forecast Discussion on 2019 Jun 10 1230 UTC

[nw7us@sunspotwatch.com]

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Here is the current forecast discussion on space weather and geophysical activity, issued 2019 Jun 10 1230 UTC.

Solar Activity

24 hr Summary: Solar activity was very low. The solar disk was spotless. No Earth-directed CMEs were observed in available satellite imagery.

Forecast: Solar activity is expected to remain at very low levels on 10-12 Jun.

Energetic Particle

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

Forecast: The greater than 2 MeV electron flux is expected to increase to moderate levels on 11 Jun and to high levels on 12 Jun due to an enhanced solar environment. The greater than 10 MeV proton flux is expected to continue at background levels.

Solar Wind

24 hr Summary: Solar wind parameters decreased to nominal levels with solar wind speed decreasing from approximately 425 km/s to near 340 km/s. Total field ranged from 2-4 nT while the Bz component was between +/-4 nT. Phi angle was oriented in a mostly negative (towards) solar sector.

Forecast: 11 Jun and 12 Jun are expected to see elevated solar wind velocities with the anticipated onset of CH HSS effects from a positive polarity northern crown extension CH. Additionally, there is a chance for solar wind conditions to reflect passage of a slow CME on 12 Jun. The CME was from a 5 degree filament that lifted off near S05E13 at approximately 07/2100 UTC.

Geospace

24 hr Summary: The geomagnetic field was quiet.

Forecast: The geomagnetic field is expected to be at mostly quiet levels for the rest of the UTC day on 10 Jun. 11-12 Jun are expected to see unsettled to active conditions with the anticipated onset of CH HSS effects from a positive polarity, northern crown extension CH as well as a chance for impacts from a slow CME on 12 Jun.

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