:Product: 0226RSGA.txt :Issued: 2019 Feb 26 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 57 Issued at 2200Z on 26 Feb 2019 IA. Analysis of Solar Active Regions and Activity from 25/2100Z to 26/2100Z: 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 (27 Feb, 28 Feb, 01 Mar). IIA. Geophysical Activity Summary 25/2100Z to 26/2100Z: The geomagnetic field has been at quiet levels for the past 24 hours. Solar wind speed reached a peak of 352 km/s at 26/0131Z. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to minor storm levels on day one (27 Feb), unsettled to minor storm levels on day two (28 Feb) and quiet to active levels on day three (01 Mar). III. Event probabilities 27 Feb-01 Mar Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 26 Feb 071 Predicted 27 Feb-01 Mar 071/070/070 90 Day Mean 26 Feb 071 V. Geomagnetic A Indices Observed Afr/Ap 25 Feb 002/002 Estimated Afr/Ap 26 Feb 003/004 Predicted Afr/Ap 27 Feb-01 Mar 012/018-020/024-012/016 VI. Geomagnetic Activity Probabilities 27 Feb-01 Mar A. Middle Latitudes Active 40/40/35 Minor Storm 25/25/15 Major-severe storm 05/05/01 B. High Latitudes Active 10/10/15 Minor Storm 30/30/30 Major-severe storm 50/55/40