Viewing archive of Saturday, 4 January 2020
Solar activity report
Report of Solar-Geophysical Activity 2020 Jan 04 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 4 Issued at 2200Z on 04 Jan 2020IA. Analysis of Solar Active Regions and Activity from 03-2100Z to 04-2100Z 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 (05 Jan, 06 Jan, 07 Jan).
IIA. Geophysical Activity Summary 03-2100Z to 04-2100Z
The geomagnetic
field has been at quiet levels for the past 24 hours. Solar wind speed
reached a peak of 429 km/s at 04/1429Z. Total IMF reached 8 nT at
04/2048Z. The maximum southward component of Bz reached -5 nT at
03/2124Z.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet levels on days one, two, and three (05 Jan, 06 Jan, 07
Jan).
III. Event Probabilities 05 Jan to 07 Jan
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 04 Jan 072 Predicted 05 Jan-07 Jan 072/072/072 90 Day Mean 04 Jan 070
V. Geomagnetic A Indices
Observed Afr/Ap 03 Jan 006/004 Estimated Afr/Ap 04 Jan 005/005 Predicted Afr/Ap 05 Jan-07 Jan 006/005-006/005-006/005
VI. Geomagnetic Activity Probabilities 05 Jan to 07 Jan
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 05% | 05% | 05% |
| Minor storm | 01% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 15% | 15% | 15% |
| Major-severe storm | 10% | 10% | 10% |
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