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Sunday, July 30, 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 30 1230 UTC.

Solar Activity

24 hr Summary: Solar activity was very low. New Region 2669 (N18W31, Bxo/beta) emerged this period but was relatively simple and unproductive. No Earth-directed CMEs were observed in available coronagraph imagery.

Forecast: There is a chance for C-class flare activity on day one (30 Jul) with C-class flares likely on days two and three (31 Jul-01 Aug) due to the return of old Region 2665 (S06, L=113). There is a slight chance for M-class (R1-R2 (Minor-Moderate)) flares throughout the forecast period.

Energetic Particle

24 hr Summary: The greater than 2 MeV electron flux reached high levels this period with a peak flux of 8,288 pfu observed at 29/1510 UTC. The greater than 10 MeV proton flux was steady at near-background levels throughout the period.

Forecast: The greater than 2 MeV electron flux is expected to reach high levels on days one and three (30 Jul, 01 Aug). Normal to moderate electron fluxes are likely on day two (31 Jul) due to elevated geomagnetic field activity. The greater than 10 MeV proton flux is expected to persist at near-background levels throughout the forecast period.

Solar Wind

24 hr Summary: The near-Earth solar wind environment reflected a nominal solar wind environment this period and solar wind parameters were steady at near-background levels throughout the period.

Forecast: The near-Earth solar wind environment is expected to become enhanced beginning on day two through day three (31 Jul-01 Aug) due to the influence of a negative polarity CH HSS.

Geospace

24 hr Summary: The geomagnetic field was quiet under a nominal solar wind regime.

Forecast: The geomagnetic field is expected to be quiet on day one (30 Jul). The influence of a negative polarity CH HSS is expected to cause periods of active conditions on day two (31 Jul) and unsettled conditions on day three (01 Aug).

Don’t forget to visit our live space weather and radio propagation web site, at: http://ift.tt/17yXOGK

Live Aurora mapping is at http://ift.tt/2lYUS2h

If you are on Twitter, please follow these two users: + http://ift.tt/1iWH4ta + http://ift.tt/1wJXm19

Check out the stunning view of our Sun in action, as seen during the last five years with the Solar Dynamics Observatory (SDO): https://www.youtube.com/watch?v=zXN-MdoGM9g

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Visit our live space weather and radio propagation web site, at: http://SunSpotWatch.com

See the live aurora mapping is at http://ift.tt/2lYUS2h

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