:Product: 20041129RSGA.txt :Issued: 2004 Nov 29 2200 UTC # Prepared jointly by the U.S. Dept. of Commerce, NOAA, # Space Environment Center and the U.S. Air Force. # Joint USAF/NOAA Report of Solar and Geophysical Activity SDF Number 334 Issued at 2200Z on 29 Nov 2004 IA. Analysis of Solar Active Regions and Activity from 28/2100Z to 29/2100Z: Solar activity was low. There was one C-class flare today, a C3/Sf at 0143 UTC from Region 707 (S14E02). There are currently three spotted regions on the disk and they are all essentially unchanged from yesterday. IB. Solar Activity Forecast: Solar activity is expected to be very low to low for the next three days (30 November - 2 December). IIA. Geophysical Activity Summary 28/2100Z to 29/2100Z: The geomagnetic field was unsettled to active. Solar wind speed, temperature, and total interplanetary magnetic field (IMF) continued to be enhanced after yesterday's solar sector boundary crossing. The Z-component of the IMF has been fluctuating northwards and southwards with values typically between -7 nT to +7 nT. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be unsettled to active for the next three days (29 November - 2 December) due to persistence from currently enhanced solar wind and the onset of effects from a favorably positioned coronal hole. III. Event Probabilities 30 Nov-02 Dec Class M 05/05/05 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 29 Nov 111 Predicted 30 Nov-02 Dec 110/110/115 90 Day Mean 29 Nov 107 V. Geomagnetic A Indices Observed Afr/Ap 28 Nov 016/014 Estimated Afr/Ap 29 Nov 016/015 Predicted Afr/Ap 30 Nov-02 Dec 015/020-015/020-015/015 VI. Geomagnetic Activity Probabilities 30 Nov-02 Dec A. Middle Latitudes Active 35/35/35 Minor storm 20/20/20 Major-severe storm 10/10/10 B. High Latitudes Active 35/35/35 Minor storm 30/30/30 Major-severe storm 15/15/15