Viewing archive of Wednesday, 30 July 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 Jul 30 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 211 Issued at 2200Z on 30 Jul 2014IA. Analysis of Solar Active Regions and Activity from 29-2100Z to 30-2100Z Solar activity has been at low levels for the past 24 hours.
The largest solar event of the period was a C9 event observed at
30/1617Z from Region 2127 (S09E36). There are currently 9 numbered
sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be low with
a chance for M-class flares on days one, two, and three (31 Jul, 01 Aug,
02 Aug).
IIA. Geophysical Activity Summary 29-2100Z to 30-2100Z
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
358 km/s at 30/0148Z. Total IMF reached 5 nT at 30/0333Z. The maximum
southward component of Bz reached -5 nT at 30/0244Z.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet levels on days one and two (31 Jul, 01 Aug) and quiet to
unsettled levels on day three (02 Aug) with a chance for active
conditions.
III. Event Probabilities 31 Jul to 02 Aug
| Class M | 30% | 30% | 30% |
| Class X | 05% | 05% | 05% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 30 Jul 152 Predicted 31 Jul-02 Aug 155/160/160 90 Day Mean 30 Jul 130
V. Geomagnetic A Indices
Observed Afr/Ap 29 Jul 006/004 Estimated Afr/Ap 30 Jul 005/006 Predicted Afr/Ap 31 Jul-02 Aug 006/005-006/005-008/008
VI. Geomagnetic Activity Probabilities 31 Jul to 02 Aug
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 10% | 10% | 25% |
| Minor storm | 01% | 01% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 20% |
| Minor storm | 15% | 15% | 30% |
| Major-severe storm | 15% | 15% | 30% |
All times in UTC
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