Viewing archive of Friday, 3 April 2020
Solar activity report
Report of Solar-Geophysical Activity 2020 Apr 03 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 94 Issued at 2200Z on 03 Apr 2020IA. Analysis of Solar Active Regions and Activity from 02-2100Z to 03-2100Z 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 (04 Apr, 05 Apr, 06 Apr).
IIA. Geophysical Activity Summary 02-2100Z to 03-2100Z
The geomagnetic
field has been at quiet to unsettled levels for the past 24 hours. Solar
wind speed reached a peak of 453 km/s at 03/1621Z. Total IMF reached 7
nT at 03/2037Z. The maximum southward component of Bz reached -7 nT at
03/2041Z. Electrons greater than 2 MeV at geosynchronous orbit reached
a peak level of 1135 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet levels on days one and three (04 Apr, 06 Apr) and quiet
to unsettled levels on day two (05 Apr).
III. Event Probabilities 04 Apr to 06 Apr
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 03 Apr 070 Predicted 04 Apr-06 Apr 070/070/070 90 Day Mean 03 Apr 071
V. Geomagnetic A Indices
Observed Afr/Ap 02 Apr 007/008 Estimated Afr/Ap 03 Apr 006/008 Predicted Afr/Ap 04 Apr-06 Apr 006/005-007/008-006/005
VI. Geomagnetic Activity Probabilities 04 Apr to 06 Apr
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 15% | 20% | 10% |
| Minor storm | 01% | 05% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 20% | 25% | 20% |
| Major-severe storm | 20% | 30% | 10% |
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