Viewing archive of Friday, 30 August 2013

Solar activity report

Any mentioned solar flare in this report has a scaling factor applied by the Space Weather Prediction Center (SWPC). Because of the SWPC scaling factor, solar flares are reported as 42% smaller than for the science quality data. The scaling factor has been removed from our archived solar flare data to reflect the true physical units.
Report of Solar-Geophysical Activity 2013 Aug 30 2200 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 242 Issued at 2200Z on 30 Aug 2013

IA. Analysis of Solar Active Regions and Activity from 29-2100Z to 30-2100Z

Solar activity has been at low levels for the past 24 hours. The largest solar event of the period was a C8 event observed at 30/0246Z from Region 1836 (N11E30). 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 (31 Aug, 01 Sep, 02 Sep).
IIA. Geophysical Activity Summary 29-2100Z to 30-2100Z
The geomagnetic field has been at quiet levels for the past 24 hours. Solar wind speed, as measured by the ACE spacecraft, reached a peak speed of 439 km/s at 30/1532Z. Total IMF reached 11 nT at 30/1034Z. The maximum southward component of Bz reached -10 nT at 30/1011Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 165 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be at quiet to minor storm levels on day one (31 Aug), unsettled to minor storm levels on day two (01 Sep) and quiet to active levels on day three (02 Sep).
III. Event Probabilities 31 Aug to 02 Sep
Class M01%01%01%
Class X01%01%01%
Proton01%01%01%
PCAFgreen
IV. Penticton 10.7 cm Flux
  Observed       30 Aug 108
  Predicted   31 Aug-02 Sep 105/108/108
  90 Day Mean        30 Aug 114

V. Geomagnetic A Indices
  Observed Afr/Ap 29 Aug  004/003
  Estimated     Afr/Ap 30 Aug  008/010
  Predicted    Afr/Ap 31 Aug-02 Sep  016/020-018/025-013/015

VI. Geomagnetic Activity Probabilities 31 Aug to 02 Sep
A. Middle Latitudes
Active40%45%35%
Minor storm25%30%15%
Major-severe storm05%05%01%
B. High Latitudes
Active10%05%15%
Minor storm25%20%30%
Major-severe storm60%70%45%

<< Go to daily overview page

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!

23%
Support SpaceWeatherLive with our merchandise
Check out our merchandise

Latest alerts

Get instant alerts!

Space weather facts

Last X-flare2024/03/23X1.1
Last M-flare2024/03/28M7.0
Last geomagnetic storm2024/03/25Kp5 (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
February 2024124.7 +1.7

This day in history*

Solar flares
12024M7.0
22001M6.17
32000M4.46
42022M4.0
52014M3.79
ApG
1200144G2
2200327G2
3199721G2
4201727G1
5200421G1
*since 1994

Social networks