Viewing archive of Sunday, 14 July 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 Jul 14 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 195 Issued at 2200Z on 14 Jul 2013IA. Analysis of Solar Active Regions and Activity from 13-2100Z to 14-2100Z Solar activity has been at low levels for the past 24 hours.
The largest solar event of the period was a C1 event observed at
14/1700Z from Region 1785 (S11W97). There are currently 6 numbered
sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be very low
with a chance for a C-class flares on days one, two, and three (15 Jul,
16 Jul, 17 Jul).
IIA. Geophysical Activity Summary 13-2100Z to 14-2100Z
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
439 km/s at 13/2350Z. Total IMF reached 13 nT at 13/2100Z. The maximum
southward component of Bz reached -10 nT at 14/1903Z. Electrons greater
than 2 MeV at geosynchronous orbit reached a peak level of 4433 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to active levels on day one (15 Jul) and quiet to
unsettled levels on days two and three (16 Jul, 17 Jul).
III. Event Probabilities 15 Jul to 17 Jul
| Class M | 05% | 05% | 05% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 14 Jul 113 Predicted 15 Jul-17 Jul 110/115/115 90 Day Mean 14 Jul 121
V. Geomagnetic A Indices
Observed Afr/Ap 13 Jul 008/010 Estimated Afr/Ap 14 Jul 016/021 Predicted Afr/Ap 15 Jul-17 Jul 010/018-009/008-009/010
VI. Geomagnetic Activity Probabilities 15 Jul to 17 Jul
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 30% | 15% | 20% |
| Minor storm | 10% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 20% | 20% |
| Minor storm | 30% | 25% | 30% |
| Major-severe storm | 40% | 20% | 25% |
All times in UTC
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