Viewing archive of Thursday, 30 October 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 Oct 30 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 303 Issued at 2200Z on 30 Oct 2014IA. Analysis of Solar Active Regions and Activity from 29-2100Z to 30-2100Z Solar activity has been at moderate levels for the past 24
hours. The largest solar event of the period was a M3 event observed at
30/0135Z from Region 2192 (S15W94). There are currently 10 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 (31 Oct) and likely to be low with a chance for M-class flares
on days two and three (01 Nov, 02 Nov).
IIA. Geophysical Activity Summary 29-2100Z to 30-2100Z
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 365 km/s at
30/0844Z. Total IMF reached 8 nT at 30/2003Z. The maximum southward
component of Bz reached -5 nT at 30/0808Z. Electrons greater than 2 MeV
at geosynchronous orbit reached a peak level of 2252 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to unsettled levels on days one, two, and three (31 Oct,
01 Nov, 02 Nov). Protons greater than 10 Mev have a slight chance of
crossing threshold on day one (31 Oct).
III. Event Probabilities 31 Oct to 02 Nov
| Class M | 25% | 25% | 25% |
| Class X | 10% | 05% | 05% |
| Proton | 10% | 05% | 05% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 30 Oct 140 Predicted 31 Oct-02 Nov 130/130/130 90 Day Mean 30 Oct 141
V. Geomagnetic A Indices
Observed Afr/Ap 29 Oct 007/006 Estimated Afr/Ap 30 Oct 007/008 Predicted Afr/Ap 31 Oct-02 Nov 008/008-008/008-008/008
VI. Geomagnetic Activity Probabilities 31 Oct to 02 Nov
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 25% | 25% | 25% |
| Minor storm | 10% | 10% | 10% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 25% | 25% | 25% |
| Major-severe storm | 35% | 35% | 35% |
All times in UTC
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