Viewing archive of Thursday, 13 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 13 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 317 Issued at 2200Z on 13 Nov 2014IA. Analysis of Solar Active Regions and Activity from 12-2100Z to 13-2100Z Solar activity has been at low levels for the past 24 hours.
The largest solar event of the period was a C8 event observed at
13/0607Z from Region 2209 (S15E62). 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 day one (14 Nov) and likely
to be moderate with a chance for X-class flares on days two and three
(15 Nov, 16 Nov).
IIA. Geophysical Activity Summary 12-2100Z to 13-2100Z
The geomagnetic
field has been at quiet levels for the past 24 hours. Solar wind speed,
as measured by the ACE spacecraft, reached a peak speed of 590 km/s at
13/0018Z. Total IMF reached 8 nT at 12/2107Z. The maximum southward
component of Bz reached -5 nT at 13/0814Z.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to unsettled levels on days one and two (14 Nov, 15 Nov)
and quiet to active levels on day three (16 Nov). Protons have a slight
chance of crossing threshold on days one, two, and three (14 Nov, 15
Nov, 16 Nov).
III. Event Probabilities 14 Nov to 16 Nov
| Class M | 60% | 70% | 70% |
| Class X | 20% | 30% | 30% |
| Proton | 10% | 10% | 10% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 13 Nov 154 Predicted 14 Nov-16 Nov 165/180/180 90 Day Mean 13 Nov 143
V. Geomagnetic A Indices
Observed Afr/Ap 12 Nov 006/006 Estimated Afr/Ap 13 Nov 007/008 Predicted Afr/Ap 14 Nov-16 Nov 008/008-008/008-010/012
VI. Geomagnetic Activity Probabilities 14 Nov to 16 Nov
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 30% |
| Minor storm | 05% | 05% | 10% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 25% | 25% | 30% |
| Major-severe storm | 25% | 25% | 40% |
All times in UTC
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