Viewing archive of Friday, 10 April 2020
Solar activity report
Report of Solar-Geophysical Activity 2020 Apr 10 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 101 Issued at 2200Z on 10 Apr 2020IA. Analysis of Solar Active Regions and Activity from 09-2100Z to 10-2100Z 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 (11 Apr, 12 Apr, 13 Apr).
IIA. Geophysical Activity Summary 09-2100Z to 10-2100Z
The geomagnetic
field has been at quiet levels for the past 24 hours. Solar wind speed
reached a peak of 408 km/s at 10/1336Z. Total IMF reached 6 nT at
10/0726Z. The maximum southward component of Bz reached -5 nT at
10/1449Z. Electrons greater than 2 MeV at geosynchronous orbit reached
a peak level of 249 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to active levels on day one (11 Apr) and quiet levels on
days two and three (12 Apr, 13 Apr).
III. Event Probabilities 11 Apr to 13 Apr
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 10 Apr 069 Predicted 11 Apr-13 Apr 069/068/068 90 Day Mean 10 Apr 071
V. Geomagnetic A Indices
Observed Afr/Ap 09 Apr 005/004 Estimated Afr/Ap 10 Apr 006/006 Predicted Afr/Ap 11 Apr-13 Apr 010/012-006/005-006/005
VI. Geomagnetic Activity Probabilities 11 Apr to 13 Apr
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 35% | 10% | 10% |
| Minor storm | 10% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 30% | 20% | 20% |
| Major-severe storm | 45% | 10% | 10% |
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