NOAA SEC Report of Solar-Geophysical Activity 6 June 2001
:Product: Report of Solar-Geophysical Activity :Issued: 2001 Jun 06 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 157 Issued at 2200Z on 06 Jun 2001 IA. Analysis of Solar Active Regions and Activity from 05/2100Z to 06/2100Z: Solar activity was low. Regions 9475 (N20W68), 9484 (S05W33), and 9488 (S20E19), all produced small, impulsive C-class flares during the period. The largest event being a C4/2f at 06/1920 UTC from Region 9475. Region 9488 remains the most magnetically complex region with a beta-gamma classification. The rest of the regions retain fairly simple alpha and beta magnetic classifications. Four new regions were numbered: 9490 (S13E35), 9491 (N23E63), 9492 (N18E62), and 9493 (N05E73). IB. Solar Activity Forecast: Solar activity is expected to be mostly low with a chance of isolated M-class events possible. IIA. Geophysical Activity Summary 05/2100Z to 06/2100Z: The geomagnetic field was at quiet to unsettled conditions. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at mostly quiet to unsettled conditions with isolated active periods possible due to a favorably positioned coronal hole and its resulting high speed stream. III. Event Probabilities 07 Jun-09 Jun Class M 35/35/35 Class X 05/05/05 Proton 05/05/05 PCAF green IV. Penticton 10.7 cm Flux Observed 06 Jun 158 Predicted 07 Jun-09 Jun 160/165/165 90 Day Mean 06 Jun 168 V. Geomagnetic A Indices Observed Afr/Ap 05 Jun 005/009 Estimated Afr/Ap 06 Jun 009/012 Predicted Afr/Ap 07 Jun-09 Jun 012/014-012/014-010/010 VI. Geomagnetic Activity Probabilities 07 Jun-09 Jun A. Middle Latitudes Active 25/25/20 Minor storm 05/05/05 Major-severe storm 01/01/01 B. High Latitudes Active 30/30/25 Minor storm 05/05/05 Major-severe storm 01/01/01
