Viewing archive of Tuesday, 4 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 04 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 308 Issued at 2200Z on 04 Nov 2014IA. Analysis of Solar Active Regions and Activity from 03-2100Z to 04-2100Z Solar activity has been at high levels for the past 24 hours.
The largest solar event of the period was a M6 event observed at
03/2240Z from Region 2205 (N14E84). There are currently 7 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
(05 Nov, 06 Nov, 07 Nov).
IIA. Geophysical Activity Summary 03-2100Z to 04-2100Z
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
482 km/s at 04/2052Z. Total IMF reached 14 nT at 04/1208Z. The maximum
southward component of Bz reached -12 nT at 04/1156Z. Electrons greater
than 2 MeV at geosynchronous orbit reached a peak level of 264 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to active levels on day one (05 Nov) with a slight chance
for minor storm conditions, quiet to unsettled levels on day two (06
Nov) and quiet levels on day three (07 Nov). Protons have a slight
chance of crossing threshold on days one, two, and three (05 Nov, 06
Nov, 07 Nov).
III. Event Probabilities 05 Nov to 07 Nov
| Class M | 55% | 55% | 55% |
| Class X | 10% | 10% | 10% |
| Proton | 10% | 10% | 10% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 04 Nov 129 Predicted 05 Nov-07 Nov 135/135/135 90 Day Mean 04 Nov 140
V. Geomagnetic A Indices
Observed Afr/Ap 03 Nov 005/004 Estimated Afr/Ap 04 Nov 012/015 Predicted Afr/Ap 05 Nov-07 Nov 009/012-008/008-007/008
VI. Geomagnetic Activity Probabilities 05 Nov to 07 Nov
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 30% | 20% | 15% |
| Minor storm | 10% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 30% | 30% | 25% |
| Major-severe storm | 40% | 30% | 25% |
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