:Product: 0916RSGA.txt :Issued: 2016 Sep 16 2200 UTC # Prepared jointly by the U.S. Dept. of Commerce, NOAA, # Space Weather Prediction Center and the U.S. Air Force. # Joint USAF/NOAA Solar Geophysical Activity Report and Forecast SDF Number 260 Issued at 2200Z on 16 Sep 2016 IA. Analysis of Solar Active Regions and Activity from 15/2100Z to 16/2100Z: Solar activity has been at very low levels for the past 24 hours. There are currently 1 numbered sunspot regions on the disk. IB. Solar Activity Forecast: Solar activity is expected to be very low on days one, two, and three (17 Sep, 18 Sep, 19 Sep). IIA. Geophysical Activity Summary 15/2100Z to 16/2100Z: The geomagnetic field has been at quiet levels for the past 24 hours. Solar wind speed reached a peak of 494 km/s at 16/0330Z. Total IMF reached 8 nT at 16/0718Z. The maximum southward component of Bz reached -4 nT at 16/1815Z. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet levels on days one and two (17 Sep, 18 Sep) and quiet to minor storm levels on day three (19 Sep). III. Event probabilities 17 Sep-19 Sep Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 16 Sep 084 Predicted 17 Sep-19 Sep 085/080/080 90 Day Mean 16 Sep 085 V. Geomagnetic A Indices Observed Afr/Ap 15 Sep 006/007 Estimated Afr/Ap 16 Sep 003/004 Predicted Afr/Ap 17 Sep-19 Sep 005/008-006/005-014/018 VI. Geomagnetic Activity Probabilities 17 Sep-19 Sep A. Middle Latitudes Active 10/05/35 Minor Storm 01/01/10 Major-severe storm 01/01/01 B. High Latitudes Active 20/15/15 Minor Storm 20/10/20 Major-severe storm 10/05/20