Viewing archive of Tuesday, 11 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 11 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 315 Issued at 2200Z on 11 Nov 2014IA. Analysis of Solar Active Regions and Activity from 10-2100Z to 11-2100Z Solar activity has been at low levels for the past 24 hours.
The largest solar event of the period was a C6 event observed at
11/1122Z. There are currently 3 numbered sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be low with
a chance for M-class flares and a slight chance for an X-class flare on
day one (12 Nov) and likely to be moderate with a slight chance for an
X-class flare on day two (13 Nov) and likely to be moderate with a
chance for X-class flares on day three (14 Nov).
IIA. Geophysical Activity Summary 10-2100Z to 11-2100Z
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
555 km/s at 10/2122Z. Total IMF reached 12 nT at 11/1942Z. The maximum
southward component of Bz reached -8 nT at 11/2048Z.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet levels on days one, two, and three (12 Nov, 13 Nov, 14
Nov). Protons have a slight chance of crossing threshold on days one,
two, and three (12 Nov, 13 Nov, 14 Nov).
III. Event Probabilities 12 Nov to 14 Nov
| Class M | 50% | 60% | 70% |
| Class X | 10% | 20% | 30% |
| Proton | 10% | 10% | 10% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 11 Nov 142 Predicted 12 Nov-14 Nov 165/180/180 90 Day Mean 11 Nov 142
V. Geomagnetic A Indices
Observed Afr/Ap 10 Nov 016/017 Estimated Afr/Ap 11 Nov 007/010 Predicted Afr/Ap 12 Nov-14 Nov 005/005-006/005-006/005
VI. Geomagnetic Activity Probabilities 12 Nov to 14 Nov
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 10% | 10% | 10% |
| Minor storm | 01% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 20% | 20% | 20% |
| Major-severe storm | 20% | 20% | 20% |
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