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Here is the current forecast discussion on space weather and geophysical activity, issued 2015 Dec 07 1230 UTC.

Solar Activity

24 hr Summary: Solar activity was at low levels as both Region 2463 (S11E30, Eao/beta) and new Region 2465 (S05E64, Hsx/alpha) produced C1 flares at 06/2108 UTC and 07/0419 UTC respectively. Slight decay was observed in the intermediate spots of Region 2463. Region 2464 (S12E45, Bxo/beta) also appeared to be in decay. The rest of the spotted regions were relatively stable. No Earth-directed coronal mass ejections were observed.

Forecast: Solar activity is expected to be at very low levels with a continued chance for further C-class flaring over the next three days (07-09 Dec).

Energetic Particle

24 hr Summary: The greater than 2 MeV electron flux reached high levels, with a maximum flux of 1,890 pfu observed at 07/1150 UTC. The greater than 10 MeV proton flux was at background levels.

Forecast: The greater than 2 MeV electron flux is expected be at moderate to high levels for the forecast period (07-09 Dec) due to effects from a coronal hole high speed stream (CH HSS). The greater than 10 MeV proton flux is expected to continue at background levels all three days.

Solar Wind

24 hr Summary: Solar wind parameters were indicative of continued CH HSS influence. Solar wind speed increased from approximately 500 km/s to near 620 km/s with total field between 4 nT and 14 nT. The Bz component was variable between +/-9 nT. Phi angle was mostly oriented in a positive (away) sector throughout the period.

Forecast: Days one through three (07-09 Dec) are expected to see continued enhanced levels due to CH HSS effects. Solar wind speeds in the 550 km/s to 650 km/s range are likely to persist through the forecast period.

Geospace

24 hr Summary: The geomagnetic field was at unsettled to active levels this period as CH HSS effects continued. Active periods were observed from 06/1200 UTC through 07/0600 UTC.

Forecast: Unsettled to G1 (Minor) storm conditions are expected through day two (07-08 Dec) due to CH HSS effects. Unsettled to active conditions are expected on day three (09 Dec) with possible isolated G1 (Minor) storm conditions as CH HSS effects persist.

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