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 Dec 10 2200 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 344 Issued at 2200Z on 10 Dec 2017

IA. Analysis of Solar Active Regions and Activity from 09-2100Z to 10-2100Z

Solar activity has been at very low levels for the past 24 hours. There is currently 1 numbered sunspot region on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be very low on days one, two, and three (11 Dec, 12 Dec, 13 Dec).
IIA. Geophysical Activity Summary 09-2100Z to 10-2100Z
The geomagnetic field has been at quiet levels for the past 24 hours. Solar wind speed reached a peak of 366 km/s at 09/2101Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 2473 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be at quiet to active levels on days one, two, and three (11 Dec, 12 Dec, 13 Dec).
III. Event Probabilities 11 Dec to 13 Dec
Class M 01%01%01%
Class X 01%01%01%
Proton01%01%01%
PCAFgreen
IV. Penticton 10.7 cm Flux
  Observed       10 Dec 072
  Predicted    11 Dec-13 Dec 072/072/074
  90 Day Mean        10 Dec 075

V. Geomagnetic A Indices
  Observed Afr/Ap 09 Dec  003/002
  Estimated     Afr/Ap 10 Dec  003/004
  Predicted     Afr/Ap 11 Dec-13 Dec  012/014-013/016-011/014

VI. Geomagnetic Activity Probabilities 11 Dec to 13 Dec
A. Middle Latitudes
Active25%25%25%
Minor storm 10%10%10%
Major-severe storm 01%01%01%
B. High Latitudes
Active15%15%15%
Minor storm 25%30%25%
Major-severe storm 35%35%35%
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 25% 35%
Middle latitude 10% 1%
Predicted Kp max 4
Solar activity
M-class solar flare 1%
X-class solar flare 1%
B6.2
Moon phase
Last Quarter

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Last spotless day:2017/12/09

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