Viewing archive of Saturday, 16 November 2013
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 2013 Nov 16 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 320 Issued at 2200Z on 16 Nov 2013IA. Analysis of Solar Active Regions and Activity from 15-2100Z to 16-2100Z Solar activity has been at moderate levels for the past 24
hours. The largest solar event of the period was a M1 event observed at
16/0749Z from Region 1900 (S19W42). There are currently 8 numbered
sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is likely to be moderate
with a slight chance for an X-class flare on days one, two, and three
(17 Nov, 18 Nov, 19 Nov).
IIA. Geophysical Activity Summary 15-2100Z to 16-2100Z
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
579 km/s at 16/1307Z. Total IMF reached 12 nT at 16/0559Z. The maximum
southward component of Bz reached -9 nT at 16/0629Z.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to unsettled levels on days one and two (17 Nov, 18 Nov)
and quiet levels on day three (19 Nov).
III. Event Probabilities 17 Nov to 19 Nov
| Class M | 60% | 60% | 60% |
| Class X | 15% | 15% | 15% |
| Proton | 05% | 05% | 05% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 16 Nov 175 Predicted 17 Nov-19 Nov 175/175/170 90 Day Mean 16 Nov 125
V. Geomagnetic A Indices
Observed Afr/Ap 15 Nov 006/008 Estimated Afr/Ap 16 Nov 009/011 Predicted Afr/Ap 17 Nov-19 Nov 009/012-008/010-006/008
VI. Geomagnetic Activity Probabilities 17 Nov to 19 Nov
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 20% | 15% | 10% |
| Minor storm | 05% | 05% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 20% | 15% |
| Minor storm | 25% | 25% | 20% |
| Major-severe storm | 30% | 20% | 10% |
All times in UTC
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