:Product: 0619RSGA.txt :Issued: 2014 Jun 19 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 170 Issued at 2200Z on 19 Jun 2014 IA. Analysis of Solar Active Regions and Activity from 18/2100Z to 19/2100Z: Solar activity has been at low levels for the past 24 hours. The largest solar event of the period was a C4 event observed at 19/1924Z from Region 2093 (S10E21). There are currently 7 numbered sunspot regions on the disk. There was also a 24 degree filament eruption between 19/1530-1655 UTC centered near S01E12. IB. Solar Activity Forecast: Solar activity is expected to be low with a chance for M-class flares on days one and two (20 Jun, 21 Jun) and likely to be low with a chance for M-class flares on day three (22 Jun). IIA. Geophysical Activity Summary 18/2100Z to 19/2100Z: The geomagnetic field has been at quiet to minor storm levels for the past 24 hours. Solar wind speed, as measured by the ACE spacecraft, reached a peak speed of 500 km/s at 19/0636Z. Total IMF reached 10 nT at 18/2248Z. The maximum southward component of Bz reached -9 nT at 18/2127Z. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet levels on days one and two (20 Jun, 21 Jun) and quiet to unsettled levels on day three (22 Jun) with the arrival of a geoeffective high speed solar wind stream. III. Event probabilities 20 Jun-22 Jun Class M 45/35/25 Class X 05/05/05 Proton 05/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 19 Jun 111 Predicted 20 Jun-22 Jun 105/105/105 90 Day Mean 19 Jun 137 V. Geomagnetic A Indices Observed Afr/Ap 18 Jun 013/015 Estimated Afr/Ap 19 Jun 007/009 Predicted Afr/Ap 20 Jun-22 Jun 005/005-006/005-008/008 VI. Geomagnetic Activity Probabilities 20 Jun-22 Jun A. Middle Latitudes Active 05/05/20 Minor Storm 01/01/05 Major-severe storm 01/01/01 B. High Latitudes Active 15/15/15 Minor Storm 10/10/20 Major-severe storm 05/05/20