Viewing archive of Thursday, 14 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 14 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 105 Issued at 2200Z on 14 Apr 2016IA. Analysis of Solar Active Regions and Activity from 13-2100Z to 14-2100Z 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
13/2343Z from Region 2529 (N09E00). There are currently 3 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 (15 Apr,
16 Apr, 17 Apr).
IIA. Geophysical Activity Summary 13-2100Z to 14-2100Z
The geomagnetic
field has been at quiet to minor storm levels for the past 24 hours.
Solar wind speed reached a peak of 548 km/s at 13/2145Z. Total IMF
reached 9 nT at 14/0829Z. The maximum southward component of Bz reached
-8 nT at 14/0905Z. Electrons greater than 2 MeV at geosynchronous orbit
reached a peak level of 5141 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to active levels on day one (15 Apr) and quiet to
unsettled levels on days two and three (16 Apr, 17 Apr).
III. Event Probabilities 15 Apr to 17 Apr
| Class M | 15% | 15% | 15% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 14 Apr 111 Predicted 15 Apr-17 Apr 110/110/110 90 Day Mean 14 Apr 098
V. Geomagnetic A Indices
Observed Afr/Ap 13 Apr 016/025 Estimated Afr/Ap 14 Apr 016/024 Predicted Afr/Ap 15 Apr-17 Apr 010/012-007/008-007/008
VI. Geomagnetic Activity Probabilities 15 Apr to 17 Apr
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 35% | 20% | 20% |
| Minor storm | 10% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 30% | 25% | 25% |
| Major-severe storm | 45% | 25% | 25% |
All times in UTC
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