NOAA SEC Report of Solar-Geophysical Activity 12 June 2001
:Product: Report of Solar-Geophysical Activity :Issued: 2001 Jun 12 2200 UT # 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 163 Issued at 2200Z on 12 Jun 2001 IA. Analysis of Solar Active Regions and Activity from 11/2100Z to 12/2100Z: Solar activity was low. The largest event of the period was a C6/1n flare and faint CME from Region 9488 (S18W56). Small centimetric bursts, a Type II radio sweep (687 km/s), and a small >10 MeV proton enhancement accompanied this flare. Minor C-class flares were also observed in Regions 9487 (N22W55), 9492 (N21W15), and 9494 (S07W80). New Region 9502 (S25E68) was numbered today. IB. Solar Activity Forecast: Solar activity is expected to be low to moderate. An isolated M-class flare is possible. IIA. Geophysical Activity Summary 11/2100Z to 12/2100Z: The geomagnetic field was at mostly low levels. A single period of unsettled conditions were observed between 12/1800 - 2100Z. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to continue at quiet to unsettled levels. III. Event Probabilities 13 Jun-15 Jun Class M 40/30/30 Class X 05/01/01 Proton 05/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 12 Jun 166 Predicted 13 Jun-15 Jun 160/155/155 90 Day Mean 12 Jun 169 V. Geomagnetic A Indices Observed Afr/Ap 11 Jun 007/010 Estimated Afr/Ap 12 Jun 005/008 Predicted Afr/Ap 13 Jun-15 Jun 008/008-008/008-008/008 VI. Geomagnetic Activity Probabilities 13 Jun-15 Jun A. Middle Latitudes Active 15/15/15 Minor storm 05/05/05 Major-severe storm 01/01/01 B. High Latitudes Active 20/20/20 Minor storm 05/05/05 Major-severe storm 01/01/01
