[Propagation+Space Weather] Today's Space Weather Forecast Discussion on 2021 Jul 10 1230 UTC

[nw7us@sunspotwatch.com]

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Here is the current forecast discussion on space weather and geophysical activity, issued 2021 Jul 10 1230 UTC.

Solar Activity

24 hr Summary: Solar activity was low. Region 2840 (N27, L=036), which rotated around the west limb, produced a C4 flare at 09/1725 UTC. Region 2839 (N19, L=320) decayed to plage. Region 2841 (S18E55, Axx/alpha) lost its trailer and produced B-class flare activity. There were no Earth-directed CMEs observed in available imagery.

Forecast: Solar activity is expected to be very low on 10-12 Jul.

Energetic Particles

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

Forecast: The greater than 2 MeV electron flux is expected to continue at normal to moderate levels on 10-12 Jul and the greater than 10 MeV proton flux is expected to remain at background levels.

Solar Wind

24 hr Summary: Solar wind parameters were moderately enhanced. Solar wind speed ranging from ~300-400 km/s. Total field peaked at 11 nT. Bz dropped to a low of -9 nT. Phi angle was predominantly positive.

Forecast: By mid to late on 11 Jul, parameters are expected to become enhanced due to the arrival of a negative polarity CH HSS. HSS conditions are expected to continue through 12 Jul.

Geospace

24 hr Summary: The geomagnetic field was quiet with an isolate period of unsettled conditions.

Forecast: Mostly quiet conditions are expected through mid to late on 11 Jul. Unsettled levels are expected late on 11 Jul followed by unsettled to active levels on 12 Jul due to CH HSS effects.

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Live data: SunSpotWatch.com

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