Viewing archive of Friday, 14 November 2014
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 2014 Nov 14 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 318 Issued at 2200Z on 14 Nov 2014IA. Analysis of Solar Active Regions and Activity from 13-2100Z to 14-2100Z Solar activity has been at low levels for the past 24 hours.
The largest solar event of the period was a C5 event observed at
14/0748Z from Region 2209 (S15E56). There are currently 6 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
(15 Nov, 16 Nov, 17 Nov).
IIA. Geophysical Activity Summary 13-2100Z to 14-2100Z
The geomagnetic
field has been at quiet to unsettled levels for the past 24 hours. Solar
wind speed, as measured by the ACE spacecraft, reached a peak speed of
592 km/s at 14/1844Z. Total IMF reached 11 nT at 14/1400Z. The maximum
southward component of Bz reached -8 nT at 14/1651Z.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to active levels on days one and three (15 Nov, 17 Nov)
and quiet to minor storm levels on day two (16 Nov). Protons have a
slight chance of crossing threshold on days one, two, and three (15 Nov,
16 Nov, 17 Nov).
III. Event Probabilities 15 Nov to 17 Nov
| Class M | 60% | 60% | 60% |
| Class X | 20% | 20% | 20% |
| Proton | 10% | 10% | 10% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 14 Nov 161 Predicted 15 Nov-17 Nov 165/165/170 90 Day Mean 14 Nov 144
V. Geomagnetic A Indices
Observed Afr/Ap 13 Nov 004/004 Estimated Afr/Ap 14 Nov 011/012 Predicted Afr/Ap 15 Nov-17 Nov 008/010-015/020-011/015
VI. Geomagnetic Activity Probabilities 15 Nov to 17 Nov
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 20% | 35% | 30% |
| Minor storm | 05% | 25% | 10% |
| Major-severe storm | 01% | 05% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 10% | 15% |
| Minor storm | 25% | 25% | 25% |
| Major-severe storm | 25% | 55% | 40% |
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