Viewing archive of Tuesday, 13 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 13 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 348 Issued at 2200Z on 13 Dec 2016IA. Analysis of Solar Active Regions and Activity from 12-2100Z to 13-2100Z 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
with a slight chance for a C-class flare on days one, two, and three (14
Dec, 15 Dec, 16 Dec).
IIA. Geophysical Activity Summary 12-2100Z to 13-2100Z
The geomagnetic
field has been at quiet levels for the past 24 hours. Solar wind speed
reached a peak of 570 km/s at 13/0111Z. Total IMF reached 6 nT at
13/1438Z. The maximum southward component of Bz reached -3 nT at
12/2324Z. Electrons greater than 2 MeV at geosynchronous orbit reached a
peak level of 9650 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet levels on days one and two (14 Dec, 15 Dec) and quiet to
unsettled levels on day three (16 Dec).
III. Event Probabilities 14 Dec to 16 Dec
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 13 Dec 071 Predicted 14 Dec-16 Dec 070/070/070 90 Day Mean 13 Dec 082
V. Geomagnetic A Indices
Observed Afr/Ap 12 Dec 005/004 Estimated Afr/Ap 13 Dec 005/005 Predicted Afr/Ap 14 Dec-16 Dec 006/005-006/005-008/008
VI. Geomagnetic Activity Probabilities 14 Dec to 16 Dec
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 05% | 05% | 10% |
| 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 | 05% | 05% | 10% |
All times in UTC
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