Viewing archive of Wednesday, 29 January 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 Jan 29 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 29 Issued at 2200Z on 29 Jan 2014IA. Analysis of Solar Active Regions and Activity from 28-2100Z to 29-2100Z Solar activity has been at moderate levels for the past 24
hours. The largest solar event of the period was an M2 event observed at
28/2216Z from Region 1967 (S12E67). There are currently 5 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
(30 Jan, 31 Jan, 01 Feb).
IIA. Geophysical Activity Summary 28-2100Z to 29-2100Z
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 530 km/s at
29/0903Z. Total IMF reached 12 nT at 28/2225Z. The maximum southward
component of Bz reached -6 nT at 29/0708Z.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to active levels on day one (30 Jan), quiet to unsettled
levels on day two (31 Jan) and quiet levels on day three (01 Feb).
III. Event Probabilities 30 Jan to 01 Feb
| Class M | 60% | 60% | 60% |
| Class X | 10% | 10% | 10% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 29 Jan 156 Predicted 30 Jan-01 Feb 155/150/150 90 Day Mean 29 Jan 151
V. Geomagnetic A Indices
Observed Afr/Ap 28 Jan 003/004 Estimated Afr/Ap 29 Jan 007/008 Predicted Afr/Ap 30 Jan-01 Feb 013/012-007/008-006/005
VI. Geomagnetic Activity Probabilities 30 Jan to 01 Feb
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 30% | 15% | 05% |
| Minor storm | 10% | 05% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 30% | 25% | 15% |
| Major-severe storm | 40% | 25% | 05% |
All times in UTC
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