Viewing archive of Saturday, 10 December 2016
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 2016 Dec 10 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 345 Issued at 2200Z on 10 Dec 2016IA. Analysis of Solar Active Regions and Activity from 09-2100Z to 10-2100Z Solar activity has been at low levels for the past 24 hours.
The largest solar event of the period was a C4 event observed at
10/1715Z from Region 2615 (S06, L=141). 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 (11 Dec, 12 Dec, 13 Dec).
IIA. Geophysical Activity Summary 09-2100Z to 10-2100Z
The geomagnetic
field has been at unsettled to minor storm levels for the past 24 hours.
Solar wind speed reached a peak of 721 km/s at 10/0307Z. Total IMF
reached 7 nT at 09/2150Z. The maximum southward component of Bz reached
-5 nT at 09/2139Z. Electrons greater than 2 MeV at geosynchronous orbit
reached a peak level of 10713 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to active levels on day one (11 Dec), quiet to unsettled
levels on day two (12 Dec) and quiet levels on day three (13 Dec).
III. Event Probabilities 11 Dec to 13 Dec
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 10 Dec 072 Predicted 11 Dec-13 Dec 070/070/073 90 Day Mean 10 Dec 083
V. Geomagnetic A Indices
Observed Afr/Ap 09 Dec 018/022 Estimated Afr/Ap 10 Dec 016/019 Predicted Afr/Ap 11 Dec-13 Dec 011/012-007/008-006/005
VI. Geomagnetic Activity Probabilities 11 Dec to 13 Dec
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 20% | 10% | 05% |
| Minor storm | 05% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 20% | 15% | 15% |
| Major-severe storm | 20% | 10% | 10% |
All times in UTC
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