:Product: 0621RSGA.txt :Issued: 2019 Jun 21 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 172 Issued at 2200Z on 21 Jun 2019 IA. Analysis of Solar Active Regions and Activity from 20/2100Z to 21/2100Z: 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 (22 Jun, 23 Jun, 24 Jun). IIA. Geophysical Activity Summary 20/2100Z to 21/2100Z: The geomagnetic field has been at quiet levels for the past 24 hours. Solar wind speed reached a peak of 418 km/s at 21/1311Z. Total IMF reached 8 nT at 21/0458Z. The maximum southward component of Bz reached -5 nT at 21/0319Z. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet levels on days one, two, and three (22 Jun, 23 Jun, 24 Jun). III. Event probabilities 22 Jun-24 Jun Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 21 Jun 067 Predicted 22 Jun-24 Jun 067/067/067 90 Day Mean 21 Jun 071 V. Geomagnetic A Indices Observed Afr/Ap 20 Jun 008/007 Estimated Afr/Ap 21 Jun 006/006 Predicted Afr/Ap 22 Jun-24 Jun 006/005-006/005-005/005 VI. Geomagnetic Activity Probabilities 22 Jun-24 Jun A. Middle Latitudes Active 10/10/10 Minor Storm 01/01/05 Major-severe storm 01/01/01 B. High Latitudes Active 15/15/15 Minor Storm 20/15/20 Major-severe storm 15/10/15