:Product: 0130RSGA.txt :Issued: 2015 Jan 30 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 30 Issued at 2200Z on 30 Jan 2015 IA. Analysis of Solar Active Regions and Activity from 29/2100Z to 30/2100Z: Solar activity has been at moderate levels for the past 24 hours. The largest solar event of the period was a M2 event observed at 30/1216Z from Region 2277 (N08E47). There are currently 8 numbered sunspot regions on the disk. IB. Solar Activity Forecast: Solar activity is likely to be moderate with a chance for X-class flares on days one, two, and three (31 Jan, 01 Feb, 02 Feb). IIA. Geophysical Activity Summary 29/2100Z to 30/2100Z: The geomagnetic field has been at quiet to unsettled levels for the past 24 hours. Solar wind speed, as measured by the ACE spacecraft, reached a peak speed of 466 km/s at 30/1220Z. Total IMF reached 9 nT at 29/2153Z. The maximum southward component of Bz reached -6 nT at 30/1540Z. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to minor storm levels on days one and two (31 Jan, 01 Feb) and quiet to active levels on day three (02 Feb). Protons have a chance of crossing threshold on days one, two, and three (31 Jan, 01 Feb, 02 Feb). III. Event probabilities 31 Jan-02 Feb Class M 70/70/70 Class X 25/25/25 Proton 25/25/25 PCAF green IV. Penticton 10.7 cm Flux Observed 30 Jan 159 Predicted 31 Jan-02 Feb 160/155/150 90 Day Mean 30 Jan 152 V. Geomagnetic A Indices Observed Afr/Ap 29 Jan 007/008 Estimated Afr/Ap 30 Jan 011/013 Predicted Afr/Ap 31 Jan-02 Feb 014/018-012/015-010/012 VI. Geomagnetic Activity Probabilities 31 Jan-02 Feb A. Middle Latitudes Active 40/40/25 Minor Storm 20/15/05 Major-severe storm 05/01/01 B. High Latitudes Active 10/10/15 Minor Storm 25/30/30 Major-severe storm 60/50/30