Viewing archive of Thursday, 10 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 10 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 191 Issued at 2200Z on 10 Jul 2014IA. Analysis of Solar Active Regions and Activity from 09-2100Z to 10-2100Z Solar activity has been at low levels for the past 24 hours.
The largest solar event of the period was a C5 event observed at
10/0253Z from Region 2106 (N16W75). There are currently 10 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
(11 Jul, 12 Jul, 13 Jul).
IIA. Geophysical Activity Summary 09-2100Z to 10-2100Z
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
420 km/s at 10/1858Z. Total IMF reached 9 nT at 10/0036Z. The maximum
southward component of Bz reached -6 nT at 10/0035Z.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet levels on days one and two (11 Jul, 12 Jul) and quiet to
unsettled levels on day three (13 Jul). Protons have a slight chance of
crossing threshold on days one, two, and three (11 Jul, 12 Jul, 13 Jul).
III. Event Probabilities 11 Jul to 13 Jul
| Class M | 60% | 60% | 60% |
| Class X | 15% | 15% | 15% |
| Proton | 10% | 10% | 10% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 10 Jul 177 Predicted 11 Jul-13 Jul 175/160/150 90 Day Mean 10 Jul 137
V. Geomagnetic A Indices
Observed Afr/Ap 09 Jul 008/008 Estimated Afr/Ap 10 Jul 007/008 Predicted Afr/Ap 11 Jul-13 Jul 006/005-006/005-008/010
VI. Geomagnetic Activity Probabilities 11 Jul to 13 Jul
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 10% | 05% | 20% |
| Minor storm | 01% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 20% |
| Minor storm | 20% | 15% | 30% |
| Major-severe storm | 10% | 15% | 25% |
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