Viewing archive of Friday, 15 July 2016
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 2016 Jul 15 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 197 Issued at 2200Z on 15 Jul 2016IA. Analysis of Solar Active Regions and Activity from 14-2100Z to 15-2100Z 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
15/1511Z from Region 2567 (N05E28). There are currently 5 numbered
sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is likely to be low with a
slight chance for an M-class flare on days one, two, and three (16 Jul,
17 Jul, 18 Jul).
IIA. Geophysical Activity Summary 14-2100Z to 15-2100Z
The geomagnetic
field has been at quiet to unsettled levels for the past 24 hours. Solar
wind speed reached a peak of 764 km/s at 15/0858Z. Total IMF reached 8
nT at 14/2110Z. The maximum southward component of Bz reached -6 nT at
15/0200Z. Electrons greater than 2 MeV at geosynchronous orbit reached a
peak level of 2438 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to unsettled levels on day one (16 Jul) and quiet levels
on days two and three (17 Jul, 18 Jul).
III. Event Probabilities 16 Jul to 18 Jul
| Class M | 10% | 10% | 10% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 15 Jul 102 Predicted 16 Jul-18 Jul 100/100/100 90 Day Mean 15 Jul 087
V. Geomagnetic A Indices
Observed Afr/Ap 14 Jul 016/012 Estimated Afr/Ap 15 Jul 010/012 Predicted Afr/Ap 16 Jul-18 Jul 007/008-006/005-006/005
VI. Geomagnetic Activity Probabilities 16 Jul to 18 Jul
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 15% | 05% | 10% |
| Minor storm | 05% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 20% | 15% | 15% |
| Minor storm | 25% | 15% | 15% |
| Major-severe storm | 20% | 10% | 10% |
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