Viewing archive of Thursday, 7 April 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 Apr 07 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 98 Issued at 2200Z on 07 Apr 2016IA. Analysis of Solar Active Regions and Activity from 06-2100Z to 07-2100Z Solar activity has been at low levels for the past 24 hours.
The largest solar event of the period was a C1 event observed at
07/1113Z. There are currently 1 numbered sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is likely to be low on days
one, two, and three (08 Apr, 09 Apr, 10 Apr).
IIA. Geophysical Activity Summary 06-2100Z to 07-2100Z
The geomagnetic
field has been at quiet levels for the past 24 hours. Solar wind speed
reached a peak of 411 km/s at 07/0909Z. Total IMF reached 13 nT at
07/1800Z. The maximum southward component of Bz reached -12 nT at
07/1800Z. Electrons greater than 2 MeV at geosynchronous orbit reached a
peak level of 1937 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to minor storm levels on day one (08 Apr), quiet to
unsettled levels on day two (09 Apr) and quiet levels on day three (10
Apr).
III. Event Probabilities 08 Apr to 10 Apr
| Class M | 05% | 05% | 05% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 07 Apr 092 Predicted 08 Apr-10 Apr 092/090/095 90 Day Mean 07 Apr 098
V. Geomagnetic A Indices
Observed Afr/Ap 06 Apr 007/007 Estimated Afr/Ap 07 Apr 009/012 Predicted Afr/Ap 08 Apr-10 Apr 013/012-007/008-006/005
VI. Geomagnetic Activity Probabilities 08 Apr to 10 Apr
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 35% | 20% | 10% |
| Minor storm | 20% | 05% | 01% |
| Major-severe storm | 05% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 10% | 15% | 15% |
| Minor storm | 25% | 25% | 10% |
| Major-severe storm | 55% | 25% | 10% |
All times in UTC
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