Viewing archive of Sunday, 30 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 30 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 334 Issued at 2200Z on 30 Nov 2014IA. Analysis of Solar Active Regions and Activity from 29-2100Z to 30-2100Z
Solar activity has been at low levels for the past 24 hours.
The largest solar event of the period was a C2 event observed at
30/1719Z from Region 2221 (N03E16). There are currently 8 numbered
sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be low with
a chance for M-class flares on days one, two, and three (01 Dec, 02 Dec,
03 Dec).
IIA. Geophysical Activity Summary 29-2100Z to 30-2100Z
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
450 km/s at 30/0504Z. Total IMF reached 11 nT at 29/2301Z. The maximum
southward component of Bz reached -8 nT at 30/1944Z. Electrons greater
than 2 MeV at geosynchronous orbit reached a peak level of 440 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to active levels on days one and two (01 Dec, 02 Dec) and
quiet levels on day three (03 Dec). Protons have a slight chance of
crossing threshold on days one, two, and three (01 Dec, 02 Dec, 03 Dec).
III. Event Probabilities 01 Dec to 03 Dec
| Class M | 50% | 50% | 50% |
| Class X | 05% | 05% | 05% |
| Proton | 10% | 10% | 10% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 30 Nov 177 Predicted 01 Dec-03 Dec 180/180/180 90 Day Mean 30 Nov 152
V. Geomagnetic A Indices
Observed Afr/Ap 29 Nov 005/003 Estimated Afr/Ap 30 Nov 007/007 Predicted Afr/Ap 01 Dec-03 Dec 011/012-009/010-007/008
VI. Geomagnetic Activity Probabilities 01 Dec to 03 Dec
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 25% | 25% | 20% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 25% | 25% | 30% |
| Major-severe storm | 30% | 30% | 25% |
All times in UTC
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