Viewing archive of Monday, 13 April 2020
Solar activity report
Report of Solar-Geophysical Activity 2020 Apr 13 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 104 Issued at 2200Z on 13 Apr 2020IA. Analysis of Solar Active Regions and Activity from 12-2100Z to 13-2100Z 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 (14 Apr, 15 Apr, 16 Apr).
IIA. Geophysical Activity Summary 12-2100Z to 13-2100Z
The geomagnetic
field has been at quiet levels for the past 24 hours. Solar wind speed
reached a peak of 429 km/s at 13/0225Z. Electrons greater than 2 MeV at
geosynchronous orbit reached a peak level of 158 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet levels on days one, two, and three (14 Apr, 15 Apr, 16
Apr).
III. Event Probabilities 14 Apr to 16 Apr
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 13 Apr 070 Predicted 14 Apr-16 Apr 070/070/068 90 Day Mean 13 Apr 071
V. Geomagnetic A Indices
Observed Afr/Ap 12 Apr 005/006 Estimated Afr/Ap 13 Apr 005/005 Predicted Afr/Ap 14 Apr-16 Apr 006/005-005/005-006/005
VI. Geomagnetic Activity Probabilities 14 Apr to 16 Apr
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 10% | 10% | 10% |
| Minor storm | 01% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 20% | 20% | 20% |
| Major-severe storm | 10% | 10% | 10% |
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| Monthly mean Sunspot Number | |
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