Viewing archive of Wednesday, 12 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 12 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 316 Issued at 2200Z on 12 Nov 2014IA. Analysis of Solar Active Regions and Activity from 11-2100Z to 12-2100Z 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
12/1046Z. There are currently 4 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 day one (13 Nov) and likely
to be moderate with a chance for X-class flares on days two and three
(14 Nov, 15 Nov).
IIA. Geophysical Activity Summary 11-2100Z to 12-2100Z
The geomagnetic
field has been at quiet to minor storm levels for the past 24 hours.
Solar wind speed, as measured by the ACE spacecraft, reached a peak
speed of 657 km/s at 12/0348Z. Total IMF reached 10 nT at 11/2145Z. The
maximum southward component of Bz reached -8 nT at 11/2135Z.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to unsettled levels on days one, two, and three (13 Nov,
14 Nov, 15 Nov). Protons have a slight chance of crossing threshold on
days one, two, and three (13 Nov, 14 Nov, 15 Nov).
III. Event Probabilities 13 Nov to 15 Nov
| Class M | 60% | 70% | 70% |
| Class X | 20% | 30% | 30% |
| Proton | 10% | 10% | 10% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 12 Nov 153 Predicted 13 Nov-15 Nov 165/180/180 90 Day Mean 12 Nov 143
V. Geomagnetic A Indices
Observed Afr/Ap 11 Nov 009/008 Estimated Afr/Ap 12 Nov 011/014 Predicted Afr/Ap 13 Nov-15 Nov 008/008-008/008-008/008
VI. Geomagnetic Activity Probabilities 13 Nov to 15 Nov
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 25% | 25% | 25% |
| Major-severe storm | 25% | 25% | 25% |
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