Viewing archive of Saturday, 1 December 2018
Solar activity report
Any mentioned solar flare in this report has a scaling factor applied by the Space Weather Prediction Center (SWPC). Because of the SWPC scaling factor, solar flares are reported as 42% smaller than for the science quality data. The scaling factor has been removed from our archived solar flare data to reflect the true physical units.
Report of Solar-Geophysical Activity 2018 Dec 01 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 335 Issued at 2200Z on 01 Dec 2018IA. Analysis of Solar Active Regions and Activity from 30-2100Z to 01-2100Z 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 (02 Dec, 03 Dec, 04 Dec).
IIA. Geophysical Activity Summary 30-2100Z to 01-2100Z
The geomagnetic
field has been at quiet to unsettled levels for the past 24 hours. Solar
wind speed reached a peak of 414 km/s at 01/1916Z. Total IMF reached 10
nT at 01/1737Z. The maximum southward component of Bz reached -8 nT at
01/1554Z.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at unsettled to minor storm levels on day one (02 Dec) and quiet
to active levels on days two and three (03 Dec, 04 Dec).
III. Event Probabilities 02 Dec to 04 Dec
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 01 Dec 069 Predicted 02 Dec-04 Dec 068/068/068 90 Day Mean 01 Dec 069
V. Geomagnetic A Indices
Observed Afr/Ap 30 Nov 002/000 Estimated Afr/Ap 01 Dec 009/012 Predicted Afr/Ap 02 Dec-04 Dec 021/028-011/012-008/010
VI. Geomagnetic Activity Probabilities 02 Dec to 04 Dec
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 45% | 25% | 25% |
| Minor storm | 25% | 10% | 10% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 05% | 15% | 15% |
| Minor storm | 20% | 25% | 25% |
| Major-severe storm | 70% | 40% | 40% |
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