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Saturday, July 1, 2017

Here is the current forecast discussion on space weather and...



Here is the current forecast discussion on space weather and geophysical activity, issued 2017 Jul 01 1230 UTC.

Solar Activity

24 hr Summary: Solar activity was at very low levels. Region 2664 (N18W65, Hsx/alpha) was quiet and stable throughout the period. No Earth-directed CMEs were observed in available satellite imagery.

Forecast: Solar activity is expected to continue at very low levels all three days (01-03 Jul).

Energetic Particles

24 hr Summary: The greater than 2 MeV electron flux continued at normal to moderate levels and the greater than 10 MeV proton flux remained at background values.

Forecast: The greater than 2 MeV electron flux is expected to continue at normal to moderate levels all three days (01-03 Jul) and the greater than 10 MeV proton flux is expected to remain at background levels.

Solar Wind

24 hr Summary: Solar wind parameters, as measured by the DSCOVR spacecraft, reflected nominal conditions. Solar wind speeds were at or below 400 km/s throughout the day. Total magnetic field strength rose to 10 nT late in the period but were steady at 1 to 5 nT throughout the majority of the reporting period. The Bz component of the IMF was variable with a maximum southward value of -9 nT late in the period. Phi angle was oriented in a positive solar sector.

Forecast: Solar wind parameters are expected to remain at near-background levels on day one (01 Jul). An enhancement is anticipated late on day two (02 Jul) with the anticipated arrival of the 28 Jun CME. Enhancements are expected to continue through day three (03 Jun).

Geospace

24 hr Summary: The geomagnetic field was quiet to unsettled.

Forecast: The geomagnetic field is expected to be quiet to unsettled for the remainder of day one (01 Jul). Unsettled to active conditions are expected late on day two (02 Jul) with the onset of the 28 Jun CME. Day three (03 Jul) is likely to observe G1 (Minor) conditions as the main portion of the CME is expected to influences Earths near-space environment.

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