:Product: 0515RSGA.txt :Issued: 2020 May 15 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 136 Issued at 2200Z on 15 May 2020 IA. Analysis of Solar Active Regions and Activity from 14/2100Z to 15/2100Z: 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 (16 May, 17 May, 18 May). IIA. Geophysical Activity Summary 14/2100Z to 15/2100Z: The geomagnetic field has been at quiet levels for the past 24 hours. Solar wind speed reached a peak of 330 km/s at 15/1927Z. Total IMF reached 7 nT at 15/0935Z. The maximum southward component of Bz reached -3 nT at 15/0859Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 176 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet levels on days one, two, and three (16 May, 17 May, 18 May). III. Event probabilities 16 May-18 May Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 15 May 068 Predicted 16 May-18 May 068/068/068 90 Day Mean 15 May 070 V. Geomagnetic A Indices Observed Afr/Ap 14 May 003/002 Estimated Afr/Ap 15 May 005/004 Predicted Afr/Ap 16 May-18 May 006/005-005/005-005/005 VI. Geomagnetic Activity Probabilities 16 May-18 May A. Middle Latitudes Active 10/10/10 Minor Storm 01/01/01 Major-severe storm 01/01/01 B. High Latitudes Active 15/15/15 Minor Storm 15/15/15 Major-severe storm 10/10/10