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 Jun 26 2200 UTC
Prepared by the NOAA © SWPC and processed by

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 177 Issued at 2200Z on 26 Jun 2017

IA. Analysis of Solar Active Regions and Activity from 25-2100Z to 26-2100Z

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 (27 Jun, 28 Jun, 29 Jun).
IIA. Geophysical Activity Summary 25-2100Z to 26-2100Z
The geomagnetic field has been at quiet to unsettled levels for the past 24 hours. Solar wind speed reached a peak of 611 km/s at 26/1310Z. Total IMF reached 7 nT at 25/2237Z. The maximum southward component of Bz reached -5 nT at 26/0307Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 227 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be at quiet levels on days one and two (27 Jun, 28 Jun) and quiet to unsettled levels on day three (29 Jun).
III. Event Probabilities 27 Jun to 29 Jun
Class M 01%01%01%
Class X 01%01%01%
IV. Penticton 10.7 cm Flux
  Observed       26 Jun 074
  Predicted    27 Jun-29 Jun 075/075/077
  90 Day Mean        26 Jun 077

V. Geomagnetic A Indices
  Observed Afr/Ap 25 Jun  011/012
  Estimated     Afr/Ap 26 Jun  007/008
  Predicted     Afr/Ap 27 Jun-29 Jun  006/005-006/005-008/010

VI. Geomagnetic Activity Probabilities 27 Jun to 29 Jun
A. Middle Latitudes
Minor storm 01%01%01%
Major-severe storm 01%01%01%
B. High Latitudes
Minor storm 10%10%25%
Major-severe storm 05%05%20%
Current data suggest that it is not possible to see aurora now at middle latitudes
The solar wind speed is currently moderately high (507.5 km/sec.)

Latest news

Today's space weather

Auroral activity Minor Severe
High latitude 10% 5%
Middle latitude 1% 1%
Predicted Kp max 2
Solar activity
M-class solar flare 1%
X-class solar flare 1%
Moon phase
Waxing Crescent


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Space weather facts

Last X-flare:2015/05/05X2.7
Last M-flare:2017/04/03M5.8
Last geomagnetic storm:2017/06/16Kp5 (G1)
Number of spotless days in 2017:42
Current stretch spotless days:2

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