Viewing archive of Friday, 1 March 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 Mar 01 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 60 Issued at 2200Z on 01 Mar 2013IA. Analysis of Solar Active Regions and Activity from 28-2100Z to 01-2100Z
Solar activity has been at very low levels for the past 24
hours. There are currently 6 numbered sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is likely to be low with a
slight chance for an M-class flare on days one, two, and three (02 Mar,
03 Mar, 04 Mar).
IIA. Geophysical Activity Summary 28-2100Z to 01-2100Z
The geomagnetic
field has been at unsettled to minor storm levels for the past 24 hours.
Solar wind speed, as measured by the ACE spacecraft, reached a peak
speed of 684 km/s at 01/1941Z. Total IMF reached 18 nT at 01/0818Z. The
maximum southward component of Bz reached -16 nT at 01/0819Z.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to active levels on day one (02 Mar), quiet to unsettled
levels on day two (03 Mar) and quiet levels on day three (04 Mar).
III. Event Probabilities 02 Mar to 04 Mar
| Class M | 10% | 10% | 10% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 01 Mar 113 Predicted 02 Mar-04 Mar 115/118/120 90 Day Mean 01 Mar 114
V. Geomagnetic A Indices
Observed Afr/Ap 28 Feb 008/007 Estimated Afr/Ap 01 Mar 021/028 Predicted Afr/Ap 02 Mar-04 Mar 013/015-008/010-007/008
VI. Geomagnetic Activity Probabilities 02 Mar to 04 Mar
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 30% | 25% | 15% |
| Minor storm | 10% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 30% | 25% | 25% |
| Major-severe storm | 45% | 30% | 20% |
All times in UTC
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