Viewing archive of Thursday, 1 September 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 Sep 01 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 245 Issued at 2200Z on 01 Sep 2016IA. Analysis of Solar Active Regions and Activity from 31-2100Z to 01-2100Z Solar activity has been at very low levels for the past 24
hours. 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 (02 Sep,
03 Sep, 04 Sep).
IIA. Geophysical Activity Summary 31-2100Z to 01-2100Z
The geomagnetic
field has been at unsettled to minor storm levels for the past 24 hours.
Solar wind speed reached a peak of 604 km/s at 01/1855Z. Total IMF
reached 10 nT at 01/2030Z. The maximum southward component of Bz reached
-8 nT at 01/0609Z.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at unsettled to active levels on day one (02 Sep) and quiet to
active levels on days two and three (03 Sep, 04 Sep).
III. Event Probabilities 02 Sep to 04 Sep
| Class M | 20% | 20% | 20% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 01 Sep 095 Predicted 02 Sep-04 Sep 100/100/100 90 Day Mean 01 Sep 084
V. Geomagnetic A Indices
Observed Afr/Ap 31 Aug 008/008 Estimated Afr/Ap 01 Sep 022/029 Predicted Afr/Ap 02 Sep-04 Sep 011/015-009/012-009/012
VI. Geomagnetic Activity Probabilities 02 Sep to 04 Sep
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 20% | 15% | 15% |
| Minor storm | 05% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 20% | 20% | 15% |
| Major-severe storm | 20% | 15% | 15% |
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