:Product: 0228RSGA.txt :Issued: 2026 Feb 28 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 59 Issued at 2200Z on 28 Feb 2026 IA. Analysis of Solar Active Regions and Activity from 27/2100Z to 28/2100Z: Solar activity has been at low levels for the past 24 hours. There are currently 3 numbered sunspot regions on the disk. IB. Solar Activity Forecast: Solar activity is expected to be low with a chance for M-class flares on days one, two, and three (01 Mar, 02 Mar, 03 Mar). IIA. Geophysical Activity Summary 27/2100Z to 28/2100Z: The geomagnetic field has been at quiet to unsettled levels for the past 24 hours. Solar wind speed reached a peak of 473 km/s at 28/0927Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 7143 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at unsettled to active levels on days one and two (01 Mar, 02 Mar) and quiet to unsettled levels on day three (03 Mar). III. Event probabilities 01 Mar-03 Mar Class M 25/25/25 Class X 05/05/05 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 28 Feb 141 Predicted 01 Mar-03 Mar 140/145/145 90 Day Mean 28 Feb 149 V. Geomagnetic A Indices Observed Afr/Ap 27 Feb 009/010 Estimated Afr/Ap 28 Feb 009/010 Predicted Afr/Ap 01 Mar-03 Mar 015/018-014/016-008/008 VI. Geomagnetic Activity Probabilities 01 Mar-03 Mar A. Middle Latitudes Active 35/30/15 Minor Storm 15/15/05 Major-severe storm 01/01/01 B. High Latitudes Active 10/15/20 Minor Storm 25/30/25 Major-severe storm 50/40/20