:Product: 0630RSGA.txt :Issued: 2012 Jun 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 Report of Solar and Geophysical Activity SDF Number 182 Issued at 2200Z on 30 Jun 2012 IA. Analysis of Solar Active Regions and Activity from 29/2100Z to 30/2100Z: Solar activity was moderate. Region 1513 (N17E17) produced two impulsive M1 flares at 30/1252Z and 30/1832Z. Region 1514 (S15E15) produced several C-class events during the period. Region 1515 (S16E30) continued to grow and is now an Ekc-type region with a beta-gamma magnetic configuration and an area of 380 millionths. IB. Solar Activity Forecast: Solar activity is expected to be low with a chance for M-class flares for the next three days (01-03 July). IIA. Geophysical Activity Summary 29/2100Z to 30/2100Z: The geomagnetic field was active during the past 24 hours due to effects from the co-rotating interaction region (CIR) that arrived in advance of a recurrent coronal hole high speed stream (CH HSS). Increased solar wind speeds, temperature and density were observed at the ACE spacecraft around 30/0200Z along with an increase in total field strength to approximately 10 nT. Density began to decrease at approximately 30/1600Z while solar wind speeds continued to increase (reaching 700 km/s at the time of this report) indicating the transition from the CIR to the CH HSS. IIB. Geophysical Activity Forecast: Solar activity is expected to be unsettled to active during the next three days (01-03 July) with a chance for isolated minor storm periods due to effects from the favorably positioned CH HSS. III. Event Probabilities 01 Jul-03 Jul Class M 40/40/40 Class X 05/05/05 Proton 01/01/01 PCAF Green IV. Penticton 10.7 cm Flux Observed 30 Jun 124 Predicted 01 Jul-03 Jul 125/125/130 90 Day Mean 30 Jun 119 V. Geomagnetic A Indices Observed Afr/Ap 29 Jun 006/005 Estimated Afr/Ap 30 Jun 014/021 Predicted Afr/Ap 01 Jul-03 Jul 015/018-013/015-013/015 VI. Geomagnetic Activity Probabilities 01 Jul-03 Jul A. Middle Latitudes Active 25/25/25 Minor storm 10/10/10 Major-severe storm 01/01/01 B. High Latitudes Active 15/15/15 Minor storm 30/30/30 Major-severe storm 40/35/35