:Product: Report of Solar-Geophysical Activity :Issued: 2010 Jun 29 2201 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 180 Issued at 2200Z on 29 Jun 2010 IA. Analysis of Solar Active Regions and Activity from 28/2100Z to 29/2100Z: Solar activity has been very low. A B1 level x-ray event was observed at 29/0503Z. New Region 1085 (S23W24) was numbered today. IB. Solar Activity Forecast: Solar activity is expected to be very low with a slight chance for an isolated C-class event. IIA. Geophysical Activity Summary 28/2100Z to 29/2100Z: The geomagnetic field has been predominately quiet with an isolated unsettled period at 29/0900-1200Z. Observations from the ACE satellite indicates the continuation of a high speed solar wind stream, with winds speeds at about 540 km/s through out the period. The greater than 2 MeV electron flux at geosynchronous orbit was at high levels today. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be unsettled to active on days one and two (30 June-01 July) with isolated minor storm levels at high latitudes. Quiet to unsettled conditions are expected on day three (02 July). The increase in activity is forecast due to a recurrent coronal hole high speed stream. III. Event Probabilities 30 Jun-02 Jul Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF Green IV. Penticton 10.7 cm Flux Observed 29 Jun 074 Predicted 30 Jun-02 Jul 075/075/075 90 Day Mean 29 Jun 075 V. Geomagnetic A Indices Observed Afr/Ap 28 Jun 006/007 Estimated Afr/Ap 29 Jun 007/007 Predicted Afr/Ap 30 Jun-02 Jul 015/015-012/012-010/010 VI. Geomagnetic Activity Probabilities 30 Jun-02 Jul A. Middle Latitudes Active 25/20/15 Minor storm 10/10/05 Major-severe storm 01/01/01 B. High Latitudes Active 30/25/20 Minor storm 10/10/05 Major-severe storm 05/05/01