A moderate solar flare reaching M1.6 was detected at 04:13 UTC around Sunspot 1560. The event was not long in duration and a large Coronal Mass Ejection (CME) is not expected.
Geophysical Activity Forecast: Geomagnetic field activity is expected to be at quiet to unsettled levels through the period (06 - 08 September) with a chance for active levels on day 1 due to possible weak coronal hole high-speed stream effects. III. Event Probabilities 06 Sep-08 Sep Class M 25/25/20 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 05 Sep 133 Predicted 06 Sep-08 Sep 130/130/125 90 Day Mean 05 Sep 124 V. Geomagnetic A Indices Observed Afr/Ap 04 Sep 014/016 Estimated Afr/Ap 05 Sep 021/029 Predicted Afr/Ap 06 Sep-08 Sep 008/010-007/008-007/007 VI. Geomagnetic Activity Probabilities 06 Sep-08 Sep A. Middle Latitudes Active 15/15/10 Minor storm 05/01/01