From: Space Weather Prediction Center (NOAA)
Posted: Wednesday, June 5, 2019
Joint USAF/NOAA Solar Geophysical Activity Report and Forecast SDF Number 156 Issued at 2200Z on 05 Jun 2019 IA. Analysis of Solar Active Regions and Activity from 04/2100Z to 05/2100Z: 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 (06 Jun, 07 Jun, 08 Jun). IIA. Geophysical Activity Summary 04/2100Z to 05/2100Z: The geomagnetic field has been at quiet levels for the past 24 hours. Solar wind speed reached a peak of 365 km/s at 05/0414Z. Total IMF reached 6 nT at 05/0018Z. The maximum southward component of Bz reached -5 nT at 05/0411Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 178 pfu.
IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet levels on day one (06 Jun) and quiet to unsettled levels on days two and three (07 Jun, 08 Jun). III. Event probabilities 06 Jun-08 Jun Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 05 Jun 070 Predicted 06 Jun-08 Jun 070/070/070 90 Day Mean 05 Jun 072 V. Geomagnetic A Indices Observed Afr/Ap 04 Jun 008/007 Estimated Afr/Ap 05 Jun 004/005 Predicted Afr/Ap 06 Jun-08 Jun 006/005-008/008-008/010 VI. Geomagnetic Activity Probabilities 06 Jun-08 Jun A. Middle Latitudes Active 10/15/20 Minor Storm 01/05/05 Major-severe storm 01/01/01 B. High Latitudes Active 15/15/15 Minor Storm 20/30/30 Major-severe storm 10/25/30
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