:Product: 0914RSGA.txt :Issued: 2019 Sep 14 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 257 Issued at 2200Z on 14 Sep 2019 IA. Analysis of Solar Active Regions and Activity from 13/2100Z to 14/2100Z: Solar activity has been at very low levels for the past 24 hours. There are currently 0 numbered sunspot regions on the disk. IB. Solar Activity Forecast: Solar activity is expected to be very low on days one, two, and three (15 Sep, 16 Sep, 17 Sep). IIA. Geophysical Activity Summary 13/2100Z to 14/2100Z: The geomagnetic field has been at quiet levels for the past 24 hours. Solar wind speed reached a peak of 512 km/s at 13/2118Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 3102 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to unsettled levels on days one, two, and three (15 Sep, 16 Sep, 17 Sep). III. Event probabilities 15 Sep-17 Sep Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 14 Sep 069 Predicted 15 Sep-17 Sep 068/068/068 90 Day Mean 14 Sep 067 V. Geomagnetic A Indices Observed Afr/Ap 13 Sep 008/008 Estimated Afr/Ap 14 Sep 005/005 Predicted Afr/Ap 15 Sep-17 Sep 006/006-006/006-007/008 VI. Geomagnetic Activity Probabilities 15 Sep-17 Sep A. Middle Latitudes Active 10/10/15 Minor Storm 01/01/05 Major-severe storm 01/01/01 B. High Latitudes Active 20/20/15 Minor Storm 20/20/20 Major-severe storm 10/10/20