Viewing archive of Tuesday, 4 March 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 Mar 04 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 63 Issued at 2200Z on 04 Mar 2014IA. Analysis of Solar Active Regions and Activity from 03-2100Z to 04-2100Z Solar activity has been at low levels for the past 24 hours.
The largest solar event of the period was a C8 event observed at
04/0455Z from Region 1991 (S24W13). There are currently 8 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
(05 Mar, 06 Mar, 07 Mar).
IIA. Geophysical Activity Summary 03-2100Z to 04-2100Z
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
457 km/s at 04/1711Z. Total IMF reached 6 nT at 04/0331Z. The maximum
southward component of Bz reached -5 nT at 04/1125Z. Protons greater
than 10 MeV at geosynchronous orbit reached a peak level of 5 pfu at
03/2110Z.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet levels on days one, two, and three (05 Mar, 06 Mar, 07
Mar). Protons have a slight chance of crossing threshold on days one,
two, and three (05 Mar, 06 Mar, 07 Mar).
III. Event Probabilities 05 Mar to 07 Mar
| Class M | 60% | 60% | 60% |
| Class X | 10% | 10% | 10% |
| Proton | 10% | 10% | 10% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 04 Mar 158 Predicted 05 Mar-07 Mar 155/150/150 90 Day Mean 04 Mar 160
V. Geomagnetic A Indices
Observed Afr/Ap 03 Mar 006/004 Estimated Afr/Ap 04 Mar 005/005 Predicted Afr/Ap 05 Mar-07 Mar 006/005-006/005-006/005
VI. Geomagnetic Activity Probabilities 05 Mar to 07 Mar
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 05% | 05% | 05% |
| Minor storm | 01% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 15% | 15% | 15% |
| Major-severe storm | 05% | 05% | 05% |
All times in UTC
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