Viewing archive of Thursday, 16 November 2017
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 2017 Nov 16 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 320 Issued at 2200Z on 16 Nov 2017IA. Analysis of Solar Active Regions and Activity from 15-2100Z to 16-2100Z Solar activity has been at very low levels for the past 24
hours. There are currently 1 numbered sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be very low
with a slight chance for a C-class flare on days one, two, and three (17
Nov, 18 Nov, 19 Nov).
IIA. Geophysical Activity Summary 15-2100Z to 16-2100Z
The geomagnetic
field has been at quiet to active levels for the past 24 hours. Solar
wind speed reached a peak of 524 km/s at 16/1440Z. Total IMF reached 11
nT at 15/2343Z. The maximum southward component of Bz reached -9 nT at
16/0100Z. Electrons greater than 2 MeV at geosynchronous orbit reached a
peak level of 886 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to active levels on days one and three (17 Nov, 19 Nov)
and quiet to unsettled levels on day two (18 Nov).
III. Event Probabilities 17 Nov to 19 Nov
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 16 Nov 073 Predicted 17 Nov-19 Nov 074/074/074 90 Day Mean 16 Nov 082
V. Geomagnetic A Indices
Observed Afr/Ap 15 Nov 011/012 Estimated Afr/Ap 16 Nov 010/012 Predicted Afr/Ap 17 Nov-19 Nov 013/014-007/010-012/015
VI. Geomagnetic Activity Probabilities 17 Nov to 19 Nov
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 35% | 20% | 25% |
| Minor storm | 15% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 20% | 20% | 15% |
| Minor storm | 25% | 20% | 20% |
| Major-severe storm | 30% | 15% | 20% |
All times in UTC
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