Space Weather Forecast Discussion
Forecast Discussion
Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center
Issued: 2018 Dec 12 0030 UTC

Solar Activity
.24 hr Summary...
Solar activity was very low. A new active region was numbered today near N08E17 with NOAA sunspot number 2730. The region remained simple magnetically, unremarkable, and inactive. No Earth-directed CMEs were observed in available satellite imagery.
.Forecast...
Solar activity is expected to continue at very low levels on 12-14 Dec.

Energetic Particle
.24 hr Summary...
The greater than 2 MeV electron flux ranged from normal to high levels, today. The greater than 10 MeV proton flux remained at background values.
.Forecast...
The greater than 2 MeV electron flux is expected to be at moderate to high levels on 12-14 Dec. The greater than 10 MeV proton flux is expected to continue at background levels.

Solar Wind
.24 hr Summary...
Solar wind parameters continued to wane toward near ambient conditions following the influence of a negative polarity CH HSS. Solar wind speed decreased from near 575 to 490 km/s. Total field strength remained around 5 nT during the period. Bz ranged between +/- 4 nT. Phi angle was mostly oriented in a negative solar sector.
.Forecast...
A return to nominal levels is expected for 12-14 Dec.

Geospace
.24 hr Summary...
The geomagnetic field was at quiet to unsettled levels.
.Forecast...
A return to quiet conditions is expected for 12-14 Dec.
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