Viewing archive of Thursday, 13 January 2011
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 2011 Jan 13 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 013 Issued at 2200Z on 13 Jan 2011IA. Analysis of Solar Active Regions and Activity from 12-2100Z to 13-2100Z Solar activity remained very low. Region 1146 (N23E06)
is the only spotted region on the visible disk. Soho C3 imagery
observed a CME liftoff at 13/1018Z off the northeast limb.
IB. Solar Activity Forecast
Solar activity is expected to be very
low for the next three days (14 - 16 January).
IIA. Geophysical Activity Summary 12-2100Z to 13-2100Z
Geomagnetic field activity was at quiet levels. The greater than 2
MeV electron flux at geosynchronous orbit reached high levels during
the period.
IIB. Geophysical Activity Forecast
Geomagnetic field activity is
expected to be at quiet to unsettled levels for days one and two (14
- 15 January) as a recurrent coronal hole high speed stream (CH HSS)
becomes geoeffective. Quiet levels are expected on day three (16
January) as effects from the CH HSS wane.
III. Event Probabilities 14 Jan to 16 Jan
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 13 Jan 080 Predicted 14 Jan-16 Jan 080/080/078 90 Day Mean 13 Jan 084
V. Geomagnetic A Indices
Observed Afr/Ap 12 Jan 005/006 Estimated Afr/Ap 13 Jan 005/005 Predicted Afr/Ap 14 Jan-16 Jan 007/008-007/007-005/005
VI. Geomagnetic Activity Probabilities 14 Jan to 16 Jan
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 20% | 20% | 10% |
| Minor storm | 10% | 10% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 30% | 30% | 15% |
| Minor storm | 15% | 15% | 01% |
| Major-severe storm | 01% | 01% | 01% |
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