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 Mar 25 2200 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 84 Issued at 2200Z on 25 Mar 2017

IA. Analysis of Solar Active Regions and Activity from 24-2100Z to 25-2100Z

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 (26 Mar, 27 Mar, 28 Mar).
IIA. Geophysical Activity Summary 24-2100Z to 25-2100Z
The geomagnetic field has been at quiet levels for the past 24 hours. Solar wind speed reached a peak of 554 km/s at 24/2220Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 8821 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be at quiet to active levels on day one (26 Mar), unsettled to minor storm levels on day two (27 Mar) and active to major storm levels on day three (28 Mar).
III. Event Probabilities 26 Mar to 28 Mar
Class M 01%01%01%
Class X 01%01%01%
Proton01%01%01%
PCAFgreen
IV. Penticton 10.7 cm Flux
  Observed       25 Mar 074
  Predicted    26 Mar-28 Mar 075/075/075
  90 Day Mean        25 Mar 076

V. Geomagnetic A Indices
  Observed Afr/Ap 24 Mar  007/005
  Estimated     Afr/Ap 25 Mar  003/004
  Predicted     Afr/Ap 26 Mar-28 Mar  009/012-016/025-028/040

VI. Geomagnetic Activity Probabilities 26 Mar to 28 Mar
A. Middle Latitudes
Active20%40%30%
Minor storm 10%25%30%
Major-severe storm 05%10%15%
B. High Latitudes
Active15%15%35%
Minor storm 20%20%15%
Major-severe storm 30%30%10%
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% 30%
Middle latitude 10% 5%
Predicted Kp max 4
Solar activity
M-class solar flare 1%
X-class solar flare 1%
Moon phase
New Moon More info

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Space weather facts

Last X-flare:2015/05/05X2.7
Last M-flare:2016/11/29M1.2
Last geomagnetic storm:2017/03/22Kp5 (G1)
Number of spotless days in 2017:27
Last spotless day:2017/03/20

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