Viewing archive of Friday, 11 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 11 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 192 Issued at 2200Z on 11 Jul 2014IA. Analysis of Solar Active Regions and Activity from 10-2100Z to 11-2100Z Solar activity has been at moderate levels for the past 24
hours. The largest solar event of the period was a M1 event observed at
10/2234Z 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 day one (12 Jul) and
expected to be low with a chance for M-class flares on days two and
three (13 Jul, 14 Jul).
IIA. Geophysical Activity Summary 10-2100Z to 11-2100Z
The geomagnetic
field has been at quiet levels for the past 24 hours. Solar wind speed,
as measured by the ACE spacecraft, reached a peak speed of 407 km/s at
10/2304Z.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet levels on days one and three (12 Jul, 14 Jul) and quiet
to unsettled levels on day two (13 Jul). Protons greater than 10 Mev
have a slight chance of crossing threshold on day one (12 Jul).
III. Event Probabilities 12 Jul to 14 Jul
| Class M | 60% | 50% | 30% |
| Class X | 10% | 05% | 05% |
| Proton | 10% | 05% | 05% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 11 Jul 166 Predicted 12 Jul-14 Jul 150/140/135 90 Day Mean 11 Jul 137
V. Geomagnetic A Indices
Observed Afr/Ap 10 Jul 011/010 Estimated Afr/Ap 11 Jul 006/005 Predicted Afr/Ap 12 Jul-14 Jul 006/005-008/010-007/008
VI. Geomagnetic Activity Probabilities 12 Jul to 14 Jul
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 05% | 20% | 15% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 20% | 15% |
| Minor storm | 15% | 30% | 20% |
| Major-severe storm | 15% | 25% | 20% |
All times in UTC
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