Viewing archive of Thursday, 17 March 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 Mar 17 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 77 Issued at 2200Z on 17 Mar 2016IA. Analysis of Solar Active Regions and Activity from 16-2100Z to 17-2100Z
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 expected to be very low
with a chance for a C-class flares on days one, two, and three (18 Mar,
19 Mar, 20 Mar).
IIA. Geophysical Activity Summary 16-2100Z to 17-2100Z
The geomagnetic
field has been at quiet to minor storm levels for the past 24 hours.
Solar wind speed reached a peak of 648 km/s at 17/0805Z. Total IMF
reached 9 nT at 16/2103Z. The maximum southward component of Bz reached
-6 nT at 16/2158Z. Electrons greater than 2 MeV at geosynchronous orbit
reached a peak level of 2338 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to active levels on day one (18 Mar), quiet to unsettled
levels on day two (19 Mar) and quiet levels on day three (20 Mar).
III. Event Probabilities 18 Mar to 20 Mar
| Class M | 05% | 05% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 17 Mar 092 Predicted 18 Mar-20 Mar 095/095/090 90 Day Mean 17 Mar 104
V. Geomagnetic A Indices
Observed Afr/Ap 16 Mar 013/017 Estimated Afr/Ap 17 Mar 014/021 Predicted Afr/Ap 18 Mar-20 Mar 014/014-008/008-007/005
VI. Geomagnetic Activity Probabilities 18 Mar to 20 Mar
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 30% | 25% | 10% |
| Minor storm | 10% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 30% | 30% | 20% |
| Major-severe storm | 40% | 30% | 20% |
All times in UTC
Current data suggests there is a slight possibility for aurora to appear at the following high latitude regions in the near future
Rovaniemi, Sodankylä, UtsjokiReykjavik
Kirkenes, Tromsø
Murmansk
Kiruna
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