Joint USAF/NOAA Report of Solar and Geophysical Activity 06 Aug 2005

Status Report From: Space Weather Prediction Center (NOAA)
Posted: Saturday, August 6, 2005

Prepared jointly by the U.S. Dept. of Commerce, NOAA, Space Environment Center and the U.S. Air Force. Updated 2005 Aug 06 2204 UTC

Joint USAF/NOAA Report of Solar and Geophysical Activity SDF Number 218 Issued at 2200Z on 06 Aug 2005

IA. Analysis of Solar Active Regions and Activity from 05/2100Z to 06/2100Z: Solar activity was low. Region 794 (S12W10) produced a C1.1 flare at 05/2044 UTC. Region 792 (N10W41) has decayed into a Cso group. Region 795 (N12E00) has developed into a Cso Beta group.

IB. Solar Activity Forecast: Solar activity is expected to be low.

IIA. Geophysical Activity Summary 05/2100Z to 06/2100Z: The geomagnetic field ranged from unsettled to minor storm levels. Minor storming was observed at high latitudes between 06/0000 - 1200 UTC. Solar wind data indicate the onset of a coronal hole high speed stream beginning about 05/2200. The solar wind speed remains elevated at approximately 550 km/s. The greater than 2 MeV electron flux at geosynchronous orbit reached high levels today.

IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at unsettled to active levels with a chance for minor storm conditions for the next three days (07-09 August).

III. Event Probabilities 07 Aug-09 Aug