Forecast Discussion

Product: Forecast Discussion Issued: 2019 Dec 15 0030 UTC Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center
Solar Activity
.24 hr Summary… Solar activity was very low. The visible disk was spotless. No Earth-directed CMEs were observed in available satellite imagery.
.Forecast… Solar activity is expected to be at very low levels on 15-17 Dec.
Energetic Particles
.24 hr Summary… The greater than 2 MeV electron flux was at normal levels and the greater than 10 MeV proton flux was at background levels.
.Forecast… The greater than 2 MeV electron flux is expected to be at normal to moderate levels on 15-17 Dec. The greater than 10 MeV proton flux is expected to persist at background levels throughout the period.
Solar Wind
.24 hr Summary… Solar wind parameters reflected background conditions.
.Forecast… Solar wind parameters are expected to remain at nominal levels throughout the forecast period.
Geospace
.24 hr Summary… The geomagnetic field was at quiet levels.
.Forecast… The geomagnetic field is expected to be mostly quiet on 15-17 Dec.
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