Viewing archive of Sunday, 6 December 2015
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 2015 Dec 06 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 340 Issued at 2200Z on 06 Dec 2015IA. Analysis of Solar Active Regions and Activity from 05-2100Z to 06-2100Z
Solar activity has been at very low levels for the past 24
hours. There are currently 3 numbered sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be very low
with a chance for a C-class flares on days one, two, and three (07 Dec,
08 Dec, 09 Dec).
IIA. Geophysical Activity Summary 05-2100Z to 06-2100Z
The geomagnetic
field has been at unsettled to minor storm levels for the past 24 hours.
Solar wind speed, as measured by the ACE spacecraft, reached a peak
speed of 673 km/s at 06/1817Z. Total IMF reached 10 nT at 06/1119Z. The
maximum southward component of Bz reached -10 nT at 06/1149Z. Electrons
greater than 2 MeV at geosynchronous orbit reached a peak level of 485
pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at unsettled to minor storm levels on day one (07 Dec), quiet to
minor storm levels on day two (08 Dec) and quiet to active levels on day
three (09 Dec).
III. Event Probabilities 07 Dec to 09 Dec
| Class M | 05% | 05% | 05% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 06 Dec 102 Predicted 07 Dec-09 Dec 100/100/105 90 Day Mean 06 Dec 106
V. Geomagnetic A Indices
Observed Afr/Ap 05 Dec 014/014 Estimated Afr/Ap 06 Dec 020/028 Predicted Afr/Ap 07 Dec-09 Dec 022/025-016/020-012/015
VI. Geomagnetic Activity Probabilities 07 Dec to 09 Dec
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 35% | 35% | 30% |
| Minor storm | 20% | 20% | 10% |
| Major-severe storm | 05% | 05% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 10% | 10% | 15% |
| Minor storm | 30% | 30% | 30% |
| Major-severe storm | 55% | 55% | 40% |
All times in UTC
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