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 Feb 24 2200 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 55 Issued at 2200Z on 24 Feb 2018

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 0 numbered sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be very low on days one, two, and three (25 Feb, 26 Feb, 27 Feb).
IIA. Geophysical Activity Summary 23-2100Z to 24-2100Z
The geomagnetic field has been at quiet to unsettled levels for the past 24 hours. Solar wind speed reached a peak of 550 km/s at 23/2316Z. Total IMF reached 7 nT at 23/2256Z. The maximum southward component of Bz reached -6 nT at 23/2253Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 2614 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be at quiet to active levels on day one (25 Feb), unsettled to minor storm levels on day two (26 Feb) and quiet to unsettled levels on day three (27 Feb).
III. Event Probabilities 25 Feb to 27 Feb
Class M 01%01%01%
Class X 01%01%01%
Proton01%01%01%
PCAFgreen
IV. Penticton 10.7 cm Flux
  Observed       24 Feb 068
  Predicted    25 Feb-27 Feb 068/068/068
  90 Day Mean        24 Feb 071

V. Geomagnetic A Indices
  Observed Afr/Ap 23 Feb  011/015
  Estimated     Afr/Ap 24 Feb  009/010
  Predicted     Afr/Ap 25 Feb-27 Feb  011/014-018/024-009/008

VI. Geomagnetic Activity Probabilities 25 Feb to 27 Feb
A. Middle Latitudes
Active30%35%20%
Minor storm 15%25%05%
Major-severe storm 01%05%01%
B. High Latitudes
Active10%10%20%
Minor storm 25%20%25%
Major-severe storm 50%65%20%
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% 50%
Middle latitude 15% 1%
Predicted Kp max 4
Solar activity
M-class solar flare 1%
X-class solar flare 1%
Moon phase
Waxing Gibbous

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Space weather facts

Last X-flare:2017/09/10X8.2
Last M-flare:2017/10/20M1.0
Last geomagnetic storm:2018/02/23Kp5 (G1)
Number of spotless days in 2018:24
Current stretch spotless days:8

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