Viewing archive of Sunday, 3 August 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 Aug 03 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 215 Issued at 2200Z on 03 Aug 2014IA. Analysis of Solar Active Regions and Activity from 02-2100Z to 03-2100Z Solar activity has been at low levels for the past 24 hours.
The largest solar event of the period was a C2 event observed at
03/0312Z from Region 2132 (S19E18). There are currently 8 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 (04 Aug, 05 Aug, 06 Aug).
IIA. Geophysical Activity Summary 02-2100Z to 03-2100Z
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
459 km/s at 02/2329Z. Total IMF reached 7 nT at 02/2121Z. The maximum
southward component of Bz reached -6 nT at 03/1945Z.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to unsettled levels on days one and two (04 Aug, 05 Aug)
and quiet levels on day three (06 Aug). Protons greater than 10 Mev have
a slight chance of crossing threshold on days two and three (05 Aug, 06
Aug).
III. Event Probabilities 04 Aug to 06 Aug
| Class M | 45% | 45% | 45% |
| Class X | 10% | 10% | 10% |
| Proton | 05% | 10% | 10% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 03 Aug 152 Predicted 04 Aug-06 Aug 150/150/150 90 Day Mean 03 Aug 131
V. Geomagnetic A Indices
Observed Afr/Ap 02 Aug 012/011 Estimated Afr/Ap 03 Aug 008/008 Predicted Afr/Ap 04 Aug-06 Aug 010/010-007/008-006/005
VI. Geomagnetic Activity Probabilities 04 Aug to 06 Aug
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 30% | 15% | 10% |
| Minor storm | 10% | 05% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 30% | 25% | 20% |
| Major-severe storm | 40% | 25% | 10% |
All times in UTC
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