Report of Solar Geophysical Activity (RSGA)

By Newsroom America Feeds at 8 Mar 17:01

Joint USAF/NOAA Solar Geophysical Activity Report and Forecast SDF Number 67 Issued at 2200Z on 08 Mar 2018

IA. Analysis of Solar Active Regions and Activity from 07/2100Z to 08/2100Z: Solar activity has been at very low levels for the past 24 hours. There are currently 0 numbered sunspot regions on the disk. IB. Solar Activity Forecast: Solar activity is expected to be very low on days one, two, and three (09 Mar, 10 Mar, 11 Mar).

IIA. Geophysical Activity Summary 07/2100Z to 08/2100Z: The geomagnetic field has been at quiet levels for the past 24 hours. Solar wind speed reached a peak of 376 km/s at 07/2129Z. Total IMF reached 6 nT at 08/1539Z. The maximum southward component of Bz reached -3 nT at 08/0439Z. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to active levels on day one (09 Mar), quiet to unsettled levels on day two (10 Mar) and quiet levels on day three (11 Mar).

III. Event probabilities 09 Mar-11 Mar Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF green

IV. Penticton 10.7 cm Flux Observed 08 Mar 067 Predicted 09 Mar-11 Mar 068/068/068 90 Day Mean 08 Mar 071

V. Geomagnetic A Indices Observed Afr/Ap 07 Mar 003/003 Estimated Afr/Ap 08 Mar 006/006 Predicted Afr/Ap 09 Mar-11 Mar 009/012-007/010-006/005

VI. Geomagnetic Activity Probabilities 09 Mar-11 Mar A. Middle Latitudes Active 30/20/10 Minor Storm 10/10/01 Major-severe storm 01/01/01 B. High Latitudes Active 15/20/15 Minor Storm 30/25/20 Major-severe storm 45/25/10


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