This message is a joint product of the NOAA Space Weather Prediction Center(SWPC) and the USAF Space Weather Flight.
:Product: Report of Solar-Geophysical Activity :Issued: 2020 Mar 27 2200 UTC # Prepared jointly by the U.S. Dept. of Commerce, NOAA, # Space Weather Prediction Center and the U.S. Air Force. # Joint USAF/NOAA Solar Geophysical Activity Report and Forecast SDF Number 87 Issued at 2200Z on 27 Mar 2020 ===================================================================== IA. Analysis of Solar Active Regions and Activity from 26/2100Z to 27/2100Z: 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 (28 Mar, 29 Mar, 30 Mar). ===================================================================== IIA. Geophysical Activity Summary 26/2100Z to 27/2100Z: The geomagnetic field has been at quiet to unsettled levels for the past 24 hours. Solar wind speed reached a peak of 431 km/s at 27/1259Z. Total IMF reached 5 nT at 26/2157Z. The maximum southward component of Bz reached -4 nT at 26/2156Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 791 pfu. ===================================================================== IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet levels on days one and two (28 Mar, 29 Mar) and quiet to active levels on day three (30 Mar). ===================================================================== III. Event probabilities 28 Mar-30 Mar Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF green ===================================================================== IV. Penticton 10.7 cm Flux Observed 27 Mar 069 Predicted 28 Mar-30 Mar 070/070/070 90 Day Mean 27 Mar 071 ===================================================================== V. Geomagnetic A Indices Observed Afr/Ap 26 Mar 005/004 Estimated Afr/Ap 27 Mar 005/005 Predicted Afr/Ap 28 Mar-30 Mar 006/005-006/005-009/012 ===================================================================== VI. Geomagnetic Activity Probabilities 28 Mar-30 Mar A. Middle Latitudes Active 10/10/40 Minor Storm 01/01/15 Major-severe storm 01/01/01 B. High Latitudes Active 15/15/10 Minor Storm 15/15/30 Major-severe storm 10/10/55 :NWRA: File downloaded: Fri Mar 27 22:40:33 UTC 2020Updated daily at approx. 2235 UTC
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