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Here is the current forecast discussion on space weather and geophysical activity, issued 2015 Oct 31 1230 UTC.

Solar Activity

24 hr Summary: Solar activity was at low levels. Region 2443 (N06E62, Ekc/beta-gamma-delta) produced the majority of the activity, including the largest flare of the period, a C7 flare at 30/2016 UTC and several other C-class flares. The region continued to show growth overnight and maintained its magnetic delta configuration. The other regions on the disk were stable or showed decay during the past 24 hours. No Earth-directed CMEs were observed.

Forecast: Solar activity is expected to continue at low levels over the next three days (31 Oct-02 Nov), with a chance for M-class (R1-R2/Minor-Moderate) flares, primarily due to the flare potential of Region 2443.

Energetic Particle

24 hr Summary: The greater than 2 MeV electron flux was at normal levels throughout the period. The greater than 10 MeV proton flux was slightly elevated, but has returned to near background levels.

Forecast: The greater than 2 MeV electron flux is expected to be at normal to moderate levels for the next three days (31 Oct-02 Nov). The greater than 10 MeV proton flux is expected to be at background levels (Below S1-Minor) for the next three days (31 Oct-02 Nov).

Solar Wind

24 hr Summary: Solar wind parameters measured at the ACE spacecraft reflected mostly ambient conditions. Total magnetic field strength (Bt) varied between 4 nT and 10 nT. Bz was mostly northward through the period, with occasional southward deviations as low as -4 nT. Wind speeds averaged near 320 km/s for most of the day but increased to near 400 km/s after 31/0900 UTC. Phi angle was predominantly in the negative sector (towards the Sun).

Forecast: Solar wind parameters are expected to remain near background levels throughout the period (31 Oct-02 Nov) although there may be some disturbance on day one due to effects from an anticipated solar sector boundary crossing (SSBC).

Geospace

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

Forecast: The geomagnetic field is expected to remain at quiet to unsettled levels for the next three days (31 Oct-02 Nov) with a chance for isolated active periods due to effects from an anticipated solar sector boundary crossing (SSBC).

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