Solar activity report
Below you'll find a daily report brought to you by the NOAA about the solar activity and auroral activity during the past day and the prediction for the coming days. This page is daily updated around midnight.
Report of Solar-Geophysical Activity 2017 Nov 23 2200 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 327 Issued at 2200Z on 23 Nov 2017
IA. Analysis of Solar Active Regions and Activity from 22-2100Z to 23-2100Z
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 (24 Nov, 25 Nov, 26 Nov).
IIA. Geophysical Activity Summary 22-2100Z to 23-2100Z
field has been at quiet to unsettled levels for the past 24 hours. Solar
wind speed reached a peak of 504 km/s at 22/2203Z. Total IMF reached 6
nT at 23/2030Z. The maximum southward component of Bz reached -4 nT at
23/1817Z. Electrons greater than 2 MeV at geosynchronous orbit reached a
peak level of 4658 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to unsettled levels on day one (24 Nov) and quiet levels
on days two and three (25 Nov, 26 Nov).
III. Event Probabilities 24 Nov to 26 Nov
|Class M ||01%||01%||01%|
|Class X ||01%||01%||01%|
IV. Penticton 10.7 cm Flux
Observed 23 Nov 072
Predicted 24 Nov-26 Nov 072/072/072
90 Day Mean 23 Nov 081
V. Geomagnetic A Indices
Observed Afr/Ap 22 Nov 007/009
Estimated Afr/Ap 23 Nov 008/009
Predicted Afr/Ap 24 Nov-26 Nov 008/008-006/005-006/005
VI. Geomagnetic Activity Probabilities 24 Nov to 26 Nov
|A. Middle Latitudes|
|Minor storm ||05%||05%||01%|
|Major-severe storm ||01%||01%||01%|
|B. High Latitudes|
|Minor storm ||20%||15%||15%|
|Major-severe storm ||15%||15%||15%|