Viewing archive of Friday, 29 November 2013
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 2013 Nov 29 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 333 Issued at 2200Z on 29 Nov 2013IA. Analysis of Solar Active Regions and Activity from 28-2100Z to 29-2100Z Solar activity has been at low levels for the past 24 hours.
The largest solar event of the period was a C1 event observed at
29/1006Z from Region 1907 (S09W22). There are currently 5 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 (30 Nov, 01 Dec,
02 Dec).
IIA. Geophysical Activity Summary 28-2100Z to 29-2100Z
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
363 km/s at 29/1852Z. Total IMF reached 11 nT at 29/1603Z. The maximum
southward component of Bz reached -11 nT at 29/1253Z.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet levels on days one and two (30 Nov, 01 Dec) and quiet to
active levels on day three (02 Dec).
III. Event Probabilities 30 Nov to 02 Dec
| Class M | 25% | 25% | 25% |
| Class X | 05% | 05% | 05% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 29 Nov 129 Predicted 30 Nov-02 Dec 125/130/130 90 Day Mean 29 Nov 128
V. Geomagnetic A Indices
Observed Afr/Ap 28 Nov 001/001 Estimated Afr/Ap 29 Nov 007/008 Predicted Afr/Ap 30 Nov-02 Dec 006/005-006/005-008/012
VI. Geomagnetic Activity Probabilities 30 Nov to 02 Dec
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 05% | 05% | 20% |
| Minor storm | 01% | 01% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 15% | 15% | 25% |
| Major-severe storm | 05% | 05% | 25% |
All times in UTC
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