Viewing archive of Tuesday, 19 January 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 Jan 19 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 19 Issued at 2200Z on 19 Jan 2016IA. Analysis of Solar Active Regions and Activity from 18-2100Z to 19-2100Z
Solar activity has been at very low levels for the past 24
hours. There are currently 4 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 (20
Jan, 21 Jan, 22 Jan).
IIA. Geophysical Activity Summary 18-2100Z to 19-2100Z
The geomagnetic
field has been at quiet to active levels for the past 24 hours. Solar
wind speed, as measured by the ACE spacecraft, reached a peak speed of
400 km/s at 19/1047Z. Total IMF reached 15 nT at 18/2305Z. The maximum
southward component of Bz reached -11 nT at 19/0911Z. Electrons greater
than 2 MeV at geosynchronous orbit reached a peak level of 641 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to active levels on days one and three (20 Jan, 22 Jan)
and quiet to unsettled levels on day two (21 Jan).
III. Event Probabilities 20 Jan to 22 Jan
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 19 Jan 098 Predicted 20 Jan-22 Jan 095/095/095 90 Day Mean 19 Jan 110
V. Geomagnetic A Indices
Observed Afr/Ap 18 Jan 004/003 Estimated Afr/Ap 19 Jan 013/014 Predicted Afr/Ap 20 Jan-22 Jan 009/010-007/008-010/012
VI. Geomagnetic Activity Probabilities 20 Jan to 22 Jan
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 30% | 20% | 25% |
| Minor storm | 10% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 20% |
| Minor storm | 30% | 25% | 35% |
| Major-severe storm | 40% | 25% | 30% |
All times in UTC
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