:Product: 0705RSGA.txt :Issued: 2012 Jul 05 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 187 Issued at 2200Z on 05 Jul 2012 IA. Analysis of Solar Active Regions and Activity from 04/2100Z to 05/2100Z: Solar activity was high. Region 1515 (S17W36) produced an M6/1b at 05/1144Z along with several low-level M-class flares. The region continued to grow slightly in areal coverage and maintained a beta-gamma-delta magnetic configuration. Region 1513 (N15W52) grew as well but did not produce any further M-class activity since yesterdays report. IB. Solar Activity Forecast: Solar activity is expected to be moderate with a chance for X-class flares for the next three days (06-08 July). IIA. Geophysical Activity Summary 04/2100Z to 05/2100Z: The geomagnetic field was quiet to unsettled with an isolated active period due to residual effects from a coronal hole high speed stream (CH HSS). Solar wind speed decreased throughout the period to approximately 475 km/s. The greater than 2 MeV electron flux at geosynchronous orbit was at high levels throughout the period. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be mostly quiet on days one and two (06-07 July) as effects from the CH HSS subside. Unsettled to active conditions are likely on day three (08 July), with a chance for isolated minor storm periods, due to effects from the CME associated with the M1/2n flare observed at 04/1639Z from Region 1513. III. Event Probabilities 06 Jul-08 Jul Class M 80/80/80 Class X 25/25/25 Proton 10/10/10 PCAF green IV. Penticton 10.7 cm Flux Observed 05 Jul 165 Predicted 06 Jul-08 Jul 165/165/160 90 Day Mean 05 Jul 121 V. Geomagnetic A Indices Observed Afr/Ap 04 Jul 011/009 Estimated Afr/Ap 05 Jul 009/013 Predicted Afr/Ap 06 Jul-08 Jul 009/008-007/012-017/022 VI. Geomagnetic Activity Probabilities 06 Jul-08 Jul A. Middle Latitudes Active 20/25/45 Minor storm 05/05/15 Major-severe storm 01/01/01 B. High Latitudes Active 15/15/10 Minor storm 15/30/30 Major-severe storm 10/30/55