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 Jan 24 2200 UTC
Prepared by the NOAA © SWPC and processed by

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 24 Issued at 2200Z on 24 Jan 2017

IA. Analysis of Solar Active Regions and Activity from 23-2100Z to 24-2100Z

Solar activity has been at very low levels for the past 24 hours. There are currently 3 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 (25 Jan, 26 Jan, 27 Jan).
IIA. Geophysical Activity Summary 23-2100Z to 24-2100Z
The geomagnetic field has been at quiet levels for the past 24 hours. Solar wind speed reached a peak of 413 km/s at 23/2124Z. Total IMF reached 6 nT at 23/2114Z. The maximum southward component of Bz reached -3 nT at 24/1826Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 1001 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be at quiet levels on days one and two (25 Jan, 26 Jan) and quiet to unsettled levels on day three (27 Jan).
III. Event Probabilities 25 Jan to 27 Jan
Class M 05%05%05%
Class X 01%01%01%
IV. Penticton 10.7 cm Flux
  Observed       24 Jan 082
  Predicted    25 Jan-27 Jan 082/080/080
  90 Day Mean        24 Jan 077

V. Geomagnetic A Indices
  Observed Afr/Ap 23 Jan  002/004
  Estimated     Afr/Ap 24 Jan  004/004
  Predicted     Afr/Ap 25 Jan-27 Jan  005/005-006/005-010/012

VI. Geomagnetic Activity Probabilities 25 Jan to 27 Jan
A. Middle Latitudes
Minor storm 01%01%05%
Major-severe storm 01%01%01%
B. High Latitudes
Minor storm 20%20%30%
Major-severe storm 10%10%25%
Current data suggest that it is not possible to see aurora now at middle latitudes

Latest news

Today's space weather

Auroral activity
Minor Severe
High latitude 20% 10%
Middle latitude 1% 1%
Predicted Kp max 2
Solar activity
M-class solar flare 5%
X-class solar flare 1%
B1.9 B5.2 B2.6


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Space weather facts

Last X-flare:2015/05/05X2.7
Last M-flare:2016/11/29M1.2
Last geomagnetic storm:2016/12/26Kp5 (G1)
Number of spotless days in 2017:10
Last spotless day:2017/01/11

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