Viewing archive of Sunday, 2 March 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 Mar 02 2200 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 61 Issued at 2200Z on 02 Mar 2014

IA. Analysis of Solar Active Regions and Activity from 01-2100Z to 02-2100Z

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 02/0012Z from Region 1982 (S11, L=205). There are currently 10 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 (03 Mar, 04 Mar, 05 Mar).
IIA. Geophysical Activity Summary 01-2100Z to 02-2100Z
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 417 km/s at 01/2245Z. Protons greater than 10 MeV at geosynchronous orbit reached a peak level of 33 pfu at 01/2220Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 110 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be at quiet levels on days one, two, and three (03 Mar, 04 Mar, 05 Mar). Protons are likely to cross threshold on day one (03 Mar), have a chance of crossing threshold on day two (04 Mar) and have a slight chance of crossing threshold on day three (05 Mar).
III. Event Probabilities 03 Mar to 05 Mar
Class M70%70%70%
Class X25%25%25%
Proton70%30%20%
PCAFyellow
IV. Penticton 10.7 cm Flux
  Observed       02 Mar 161
  Predicted   03 Mar-05 Mar 165/165/160
  90 Day Mean        02 Mar 159

V. Geomagnetic A Indices
  Observed Afr/Ap 01 Mar  006/005
  Estimated     Afr/Ap 02 Mar  005/005
  Predicted    Afr/Ap 03 Mar-05 Mar  006/005-006/005-006/005

VI. Geomagnetic Activity Probabilities 03 Mar to 05 Mar
A. Middle Latitudes
Active05%05%05%
Minor storm01%01%01%
Major-severe storm01%01%01%
B. High Latitudes
Active15%15%15%
Minor storm15%15%15%
Major-severe storm05%05%05%

All times in UTC

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Current data suggests there is a slight possibility for aurora to appear at the following high latitude regions in the near future

Oulu, Rovaniemi, Sodankylä, Utsjoki
Kirkenes
Arkhangelsk, Murmansk, Norilsk, Vorkuta
Kiruna, Luleå
The Disturbance Storm Time index predicts moderate storm conditions right now (-56nT)
A transequatorial coronal hole was detected in an earth-facing position on Monday, 24 March 2025

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Coronal hole faces Earth

The anticipated strong G3 geomagnetic storm watch never materialized as the coronal mass ejection that was supposed to arrive early yesterday didn't arrive until today just past midnight UTC. The impact was very lackluster with the Bt (total strength of the IMF) increasing to a moderate 15nT at best and the solar wind speed reaching just 420km/s. A far cry from the anticipated 700 to 800km/s. That once again goes to show how hard it is to forecast space weather events and any resulting geomagnetic conditions. We remain under the influence of the CME and high latitude sky watchers should remain alert for some nice aurora displays but middle latitude sky watchers will probably have to wait for the next opportunity. 

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