Viewing archive of Tuesday, 7 April 2020
Solar activity report
Report of Solar-Geophysical Activity 2020 Apr 07 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 98 Issued at 2200Z on 07 Apr 2020IA. 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 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 (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 340 km/s at 07/0345Z. Total IMF reached 6 nT at
07/2039Z. The maximum southward component of Bz reached -5 nT at
07/2025Z. Electrons greater than 2 MeV at geosynchronous orbit reached
a peak level of 606 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet levels on days one and two (08 Apr, 09 Apr) and quiet to
unsettled levels on day three (10 Apr).
III. Event Probabilities 08 Apr to 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 070 Predicted 08 Apr-10 Apr 070/070/070 90 Day Mean 07 Apr 071
V. Geomagnetic A Indices
Observed Afr/Ap 06 Apr 002/003 Estimated Afr/Ap 07 Apr 002/003 Predicted Afr/Ap 08 Apr-10 Apr 006/005-006/005-007/008
VI. Geomagnetic Activity Probabilities 08 Apr to 10 Apr
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 10% | 10% | 20% |
| Minor storm | 01% | 01% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 20% | 20% | 30% |
| Major-severe storm | 10% | 10% | 25% |
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