Viewing archive of Sunday, 8 March 2015
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 2015 Mar 08 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 67 Issued at 2200Z on 08 Mar 2015IA. Analysis of Solar Active Regions and Activity from 07-2100Z to 08-2100Z Solar activity has been at high levels for the past 24 hours.
The largest solar event of the period was a M9 event observed at
07/2222Z from Region 2297 (S17E66). There are currently 1 numbered
sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be low with
a chance for M-class flares and a slight chance for an X-class flare on
days one, two, and three (09 Mar, 10 Mar, 11 Mar).
IIA. Geophysical Activity Summary 07-2100Z to 08-2100Z
The geomagnetic
field has been at quiet to active levels for the past 24 hours. Solar
wind speed, as measured by the ACE spacecraft, reached a peak speed of
614 km/s at 08/0631Z. Total IMF reached 7 nT at 08/1158Z. The maximum
southward component of Bz reached -5 nT at 08/0916Z. Electrons greater
than 2 MeV at geosynchronous orbit reached a peak level of 1636 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to active levels on days one and two (09 Mar, 10 Mar) and
quiet to unsettled levels on day three (11 Mar). Protons have a slight
chance of crossing threshold on days one, two, and three (09 Mar, 10
Mar, 11 Mar).
III. Event Probabilities 09 Mar to 11 Mar
| Class M | 40% | 40% | 40% |
| Class X | 10% | 10% | 10% |
| Proton | 10% | 10% | 10% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 08 Mar 124 Predicted 09 Mar-11 Mar 125/125/125 90 Day Mean 08 Mar 142
V. Geomagnetic A Indices
Observed Afr/Ap 07 Mar 017/018 Estimated Afr/Ap 08 Mar 012/015 Predicted Afr/Ap 09 Mar-11 Mar 015/018-011/012-008/008
VI. Geomagnetic Activity Probabilities 09 Mar to 11 Mar
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 35% | 30% | 15% |
| Minor storm | 15% | 10% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 10% | 15% | 15% |
| Minor storm | 30% | 30% | 25% |
| Major-severe storm | 45% | 40% | 25% |
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