Viewing archive of Friday, 3 August 2018
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 2018 Aug 03 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 215 Issued at 2200Z on 03 Aug 2018IA. Analysis of Solar Active Regions and Activity from 02-2100Z to 03-2100Z Solar activity has been at very low levels for the past 24
hours. There are currently 0 numbered sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be very low
on days one, two, and three (04 Aug, 05 Aug, 06 Aug).
IIA. Geophysical Activity Summary 02-2100Z to 03-2100Z
The geomagnetic
field has been at quiet to unsettled levels for the past 24 hours. Solar
wind speed reached a peak of 412 km/s at 03/1954Z. Total IMF reached 6
nT at 02/2100Z. The maximum southward component of Bz reached -3 nT at
03/0858Z. Electrons greater than 2 MeV at geosynchronous orbit reached a
peak level of 103 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to unsettled levels on days one, two, and three (04 Aug,
05 Aug, 06 Aug).
III. Event Probabilities 04 Aug to 06 Aug
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 03 Aug 070 Predicted 04 Aug-06 Aug 070/072/072 90 Day Mean 03 Aug 071
V. Geomagnetic A Indices
Observed Afr/Ap 02 Aug 006/006 Estimated Afr/Ap 03 Aug 006/007 Predicted Afr/Ap 04 Aug-06 Aug 007/008-009/010-010/010
VI. Geomagnetic Activity Probabilities 04 Aug to 06 Aug
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 20% | 25% | 25% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 25% | 30% | 30% |
| Major-severe storm | 25% | 30% | 30% |
All times in UTC
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