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 2018 Apr 22 2200 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 112 Issued at 2200Z on 22 Apr 2018

IA. Analysis of Solar Active Regions and Activity from 21-2100Z to 22-2100Z

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 chance for a C-class flares on days one, two, and three (23 Apr, 24 Apr, 25 Apr).
IIA. Geophysical Activity Summary 21-2100Z to 22-2100Z
The geomagnetic field has been at quiet levels for the past 24 hours. Solar wind speed reached a peak of 584 km/s at 21/2348Z. Total IMF reached 5 nT at 22/1129Z. The maximum southward component of Bz reached -3 nT at 22/1214Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 24055 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be at quiet levels on days one, two, and three (23 Apr, 24 Apr, 25 Apr).
III. Event Probabilities 23 Apr to 25 Apr
Class M 01%01%01%
Class X 01%01%01%
Proton01%01%01%
PCAFgreen
IV. Penticton 10.7 cm Flux
  Observed       22 Apr 076
  Predicted    23 Apr-25 Apr 075/075/075
  90 Day Mean        22 Apr 070

V. Geomagnetic A Indices
  Observed Afr/Ap 21 Apr  010/010
  Estimated     Afr/Ap 22 Apr  005/005
  Predicted     Afr/Ap 23 Apr-25 Apr  005/005-006/005-006/005

VI. Geomagnetic Activity Probabilities 23 Apr to 25 Apr
A. Middle Latitudes
Active10%10%10%
Minor storm 01%01%01%
Major-severe storm 01%01%01%
B. High Latitudes
Active20%20%20%
Minor storm 20%20%20%
Major-severe storm 10%10%10%
Current data suggest that it is not possible to see aurora now at middle latitudes

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