:Product: 1026RSGA.txt :Issued: 2018 Oct 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 299 Issued at 2200Z on 26 Oct 2018 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 Oct, 28 Oct, 29 Oct). 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 418 km/s at 26/1441Z. Total IMF reached 7 nT at 26/0843Z. The maximum southward component of Bz reached -6 nT at 26/0840Z. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet levels on days one and two (27 Oct, 28 Oct) and quiet to unsettled levels on day three (29 Oct). III. Event probabilities 27 Oct-29 Oct Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 26 Oct 069 Predicted 27 Oct-29 Oct 069/069/069 90 Day Mean 26 Oct 069 V. Geomagnetic A Indices Observed Afr/Ap 25 Oct 005/005 Estimated Afr/Ap 26 Oct 006/006 Predicted Afr/Ap 27 Oct-29 Oct 006/005-005/005-007/008 VI. Geomagnetic Activity Probabilities 27 Oct-29 Oct A. Middle Latitudes Active 10/10/15 Minor Storm 01/01/01 Major-severe storm 01/01/01 B. High Latitudes Active 20/20/15 Minor Storm 20/20/25 Major-severe storm 10/10/20