Viewing archive of Sunday, 29 December 2019
Solar activity report
Report of Solar-Geophysical Activity 2019 Dec 29 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 363 Issued at 2200Z on 29 Dec 2019IA. Analysis of Solar Active Regions and Activity from 28-2100Z to 29-2100Z 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 (30 Dec, 31 Dec, 01 Jan).
IIA. Geophysical Activity Summary 28-2100Z to 29-2100Z
The geomagnetic
field has been at quiet levels for the past 24 hours. Solar wind speed
reached a peak of 347 km/s at 28/2123Z. Total IMF reached 5 nT at
29/2008Z. The maximum southward component of Bz reached -3 nT at
29/0654Z.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to unsettled levels on days one, two, and three (30 Dec,
31 Dec, 01 Jan).
III. Event Probabilities 30 Dec to 01 Jan
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 29 Dec 072 Predicted 30 Dec-01 Jan 072/072/071 90 Day Mean 29 Dec 070
V. Geomagnetic A Indices
Observed Afr/Ap 28 Dec 000/001 Estimated Afr/Ap 29 Dec 003/003 Predicted Afr/Ap 30 Dec-01 Jan 007/008-007/008-008/008
VI. Geomagnetic Activity Probabilities 30 Dec to 01 Jan
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 25% | 25% | 25% |
| Major-severe storm | 20% | 20% | 20% |
All times in UTC
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