:Product: 0615RSGA.txt :Issued: 2012 Jun 15 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 Report of Solar and Geophysical Activity SDF Number 167 Issued at 2200Z on 15 Jun 2012 IA. Analysis of Solar Active Regions and Activity from 14/2100Z to 15/2100Z: Solar activity decreased to low levels. Region 1504 (S16W12) produced several C-class flares, the largest of which was a C3/Sf flare at 1324Z. Although the magnetic configuration has simplified from a delta to a beta-gamma, the area of the region has increased. The remaining regions were relatively stable. IB. Solar Activity Forecast: Solar activity is expected to be low to moderate. Isolated M-class flares are likely for the next three days (16 June-18 June), primarily from Region 1504. IIA. Geophysical Activity Summary 14/2100Z to 15/2100Z: Geomagnetic field activity was at quiet levels. IIB. Geophysical Activity Forecast: Geomagnetic field activity is expected to be mostly quiet until late on day 1 (16 June) to early on day 2 (17 June). Activity is then expected to increase to active levels with a chance for minor storm levels due to the combined effects from both the 13 and 14 June CMEs. On day 3 (18 June) conditions are expected to return to quiet to unsettled levels. III. Event Probabilities 16 Jun-18 Jun Class M 65/65/65 Class X 05/05/05 Proton 20/20/20 PCAF Green IV. Penticton 10.7 cm Flux Observed 15 Jun 145 Predicted 16 Jun-18 Jun 145/145/145 90 Day Mean 15 Jun 118 V. Geomagnetic A Indices Observed Afr/Ap 14 Jun 004/004 Estimated Afr/Ap 15 Jun 002/004 Predicted Afr/Ap 16 Jun-18 Jun 008/015-017/022-009/012 VI. Geomagnetic Activity Probabilities 16 Jun-18 Jun A. Middle Latitudes Active 25/30/25 Minor storm 10/20/10 Major-severe storm 05/05/05 B. High Latitudes Active 15/10/15 Minor storm 25/20/20 Major-severe storm 40/50/30