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 2019 Aug 25 2200 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 237 Issued at 2200Z on 25 Aug 2019

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 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 (26 Aug, 27 Aug, 28 Aug).
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 999 km/s at 25/1526Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 404 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be at quiet to active levels on days one and two (26 Aug, 27 Aug) and quiet to unsettled levels on day three (28 Aug).
III. Event Probabilities 26 Aug to 28 Aug
Class M 01%01%01%
Class X 01%01%01%
Proton01%01%01%
PCAFgreen
IV. Penticton 10.7 cm Flux
  Observed       25 Aug 066
  Predicted    26 Aug-28 Aug 067/067/067
  90 Day Mean        25 Aug 068

V. Geomagnetic A Indices
  Observed Afr/Ap 24 Aug  005/004
  Estimated     Afr/Ap 25 Aug  004/004
  Predicted     Afr/Ap 26 Aug-28 Aug  007/010-014/016-008/008

VI. Geomagnetic Activity Probabilities 26 Aug to 28 Aug
A. Middle Latitudes
Active35%35%25%
Minor storm 05%10%05%
Major-severe storm 01%01%01%
B. High Latitudes
Active20%15%15%
Minor storm 35%20%15%
Major-severe storm 35%30%05%

Latest news

Support SpaceWeatherLive.com!

A lot of people come to SpaceWeatherLive to follow the Sun's activity or if there is aurora to be seen, but with more traffic comes higher server costs. Consider a donation if you enjoy SpaceWeatherLive so we can keep the website online!

100%

Latest alerts

Get instant alerts!

Space weather facts

Last X-flare:2017/09/10X8.2
Last M-flare:2017/10/20M1.0
Last geomagnetic storm:2019/08/05Kp5 (G1)
Number of spotless days in 2019:165
Current stretch spotless days:20

This day in history*

Solar flares
12002M1.8
22001M1.3
32015C9.5
42002C7.8
52002C7.6
ApG
1201867G3
2199849G2
3201527G1
4200216G1
5199916
*since 1994

Social networks