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 02 1230 UTC.

Solar Activity

24 hr Summary: Solar activity remained at very low levels. Region 2664 (N18W78, Hsx/alpha) was inactive over the past 24 hours. No Earth-directed CMEs were observed in available satellite imagery.

Forecast: Solar activity is expected to continue at very low levels over the next three days (02-04 Jul).

Energetic Particles

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 values.

Forecast: The greater than 2 MeV electron flux is expected to be at normal to moderate levels over the next three days (02-04 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, suggested continued effects from a transient-based disturbance. Solar wind speeds began the period near 385 km/s and rose to period ending values near 475 km/s. A peak wind speed of 539 km/s was observed at 02/0455 UTC. A small shock was observed across the IMF and plasma measurements at 01/1625 UTC. Bt increased from 10 nT to 16 nT and continued to strengthen to peak values of 19 nT. The BZ component was predominantly positive until approximately 02/0415 when it went south until 02/0730, dropping as low as -10 nT. Phi angle was oriented primarily in a positive solar sector for the majority of the reporting period.

Forecast: Transient-based enhancements in the solar wind are expected to continue through day one (02 Jul) with further enhancement from the 28 Jun CME expected through day two (03 Jul). Day three (04 Jul) will likely see waning CME influence transition into weak enhancements from a small, negative polarity CH HSS.

Geospace

24 hr Summary: The geomagnetic field was quiet to unsettled with an isolated period of G1 (Minor) geomagnetic storm conditions observed during the 02/0600-0900 UTC synoptic period due to CME effects.

Forecast: The geomagnetic field is expected to reach G1 (Minor) storm levels on day one (01 Jul) due to continued transient enhancements. Further enhancements in the IMF from the 28 Jun CME are likely to keep the chance for G1 (Minor) storm conditions elevated into day two (03 Jul). A return to mostly quiet to unsettled conditions is expected on day three (04 Jul) as diminishing CME effects transition to the weak influence of a negative polarity CH HSS.

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