Viewing archive of Friday, 26 August 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 Aug 26 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 239 Issued at 2200Z on 26 Aug 2016IA. Analysis of Solar Active Regions and Activity from 25-2100Z to 26-2100Z
Solar activity has been at very low levels for the past 24
hours. There are currently 3 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 (27 Aug,
28 Aug, 29 Aug).
IIA. Geophysical Activity Summary 25-2100Z to 26-2100Z
The geomagnetic
field has been at quiet to unsettled levels for the past 24 hours. Solar
wind speed reached a peak of 551 km/s at 25/2249Z. Total IMF reached 6
nT at 25/2313Z. The maximum southward component of Bz reached -6 nT at
25/2257Z. Electrons greater than 2 MeV at geosynchronous orbit reached a
peak level of 1334 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet levels on day one (27 Aug), quiet to unsettled levels on
day two (28 Aug) and unsettled to minor storm levels on day three (29
Aug).
III. Event Probabilities 27 Aug to 29 Aug
| Class M | 05% | 05% | 05% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 26 Aug 082 Predicted 27 Aug-29 Aug 082/080/078 90 Day Mean 26 Aug 084
V. Geomagnetic A Indices
Observed Afr/Ap 25 Aug 009/010 Estimated Afr/Ap 26 Aug 007/007 Predicted Afr/Ap 27 Aug-29 Aug 006/005-008/008-020/030
VI. Geomagnetic Activity Probabilities 27 Aug to 29 Aug
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 10% | 15% | 40% |
| Minor storm | 01% | 05% | 15% |
| Major-severe storm | 01% | 01% | 05% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 15% | 20% | 20% |
| Major-severe storm | 10% | 25% | 30% |
All times in UTC
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