From: Space Weather Prediction Center (NOAA)
Posted: Sunday, April 7, 2019
Joint USAF/NOAA Solar Geophysical Activity Report and Forecast SDF Number 97 Issued at 2200Z on 07 Apr 2019 IA. Analysis of Solar Active Regions and Activity from 06/2100Z to 07/2100Z: Solar activity has been at very low levels for the past 24 hours. There are currently 1 numbered sunspot regions on the disk.
IB. Solar Activity Forecast: Solar activity is expected to be very low on days one, two, and three (08 Apr, 09 Apr, 10 Apr). IIA. Geophysical Activity Summary 06/2100Z to 07/2100Z: The geomagnetic field has been at quiet levels for the past 24 hours. Solar wind speed reached a peak of 481 km/s at 07/0355Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 21832 pfu.
IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet levels on days one, two, and three (08 Apr, 09 Apr, 10 Apr). III. Event probabilities 08 Apr-10 Apr Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 07 Apr 077 Predicted 08 Apr-10 Apr 077/077/074 90 Day Mean 07 Apr 071 V. Geomagnetic A Indices Observed Afr/Ap 06 Apr 007/008 Estimated Afr/Ap 07 Apr 010/010 Predicted Afr/Ap 08 Apr-10 Apr 005/005-006/005-005/005 VI. Geomagnetic Activity Probabilities 08 Apr-10 Apr A. Middle Latitudes Active 10/10/10 Minor Storm 01/01/01 Major-severe storm 01/01/01 B. High Latitudes Active 20/15/15 Minor Storm 20/15/15 Major-severe storm 10/15/15
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