Viewing archive of Wednesday, 11 June 2014

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 2014 Jun 11 2200 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 162 Issued at 2200Z on 11 Jun 2014

IA. Analysis of Solar Active Regions and Activity from 10-2100Z to 11-2100Z

Solar activity has been at high levels for the past 24 hours. The largest solar event of the period was a X1 event observed at 11/0906Z from Region 2087 (S18E56). There are currently 9 numbered sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is likely to be moderate with a chance for X-class flares on days one, two, and three (12 Jun, 13 Jun, 14 Jun).
IIA. Geophysical Activity Summary 10-2100Z to 11-2100Z
The geomagnetic field has been at quiet to unsettled levels for the past 24 hours. Solar wind speed, as measured by the ACE spacecraft, reached a peak speed of 643 km/s at 11/1108Z. Total IMF reached 8 nT at 10/2157Z. The maximum southward component of Bz reached -5 nT at 11/0050Z.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be at quiet to unsettled levels on day one (12 Jun) and quiet to active levels on days two and three (13 Jun, 14 Jun). Protons have a chance of crossing threshold on days one, two, and three (12 Jun, 13 Jun, 14 Jun).
III. Event Probabilities 12 Jun to 14 Jun
Class M60%60%60%
Class X30%30%30%
Proton30%30%30%
PCAFyellow
IV. Penticton 10.7 cm Flux
  Observed       11 Jun 168
  Predicted   12 Jun-14 Jun 175/170/165
  90 Day Mean        11 Jun 138

V. Geomagnetic A Indices
  Observed Afr/Ap 10 Jun  007/008
  Estimated     Afr/Ap 11 Jun  008/008
  Predicted    Afr/Ap 12 Jun-14 Jun  007/008-012/018-016/020

VI. Geomagnetic Activity Probabilities 12 Jun to 14 Jun
A. Middle Latitudes
Active15%35%35%
Minor storm05%20%25%
Major-severe storm01%01%05%
B. High Latitudes
Active15%10%15%
Minor storm25%30%20%
Major-severe storm20%50%25%

All times in UTC

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