Viewing archive of Friday, 14 January 2011

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 2011 Jan 14 2200 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 014 Issued at 2200Z on 14 Jan 2011

IA. Analysis of Solar Active Regions and Activity from 13-2100Z to 14-2100Z

Solar activity was low. Old region 1138 (N12, L=323), which has yet to rotate onto the visible disk, produced a long duration C1 x-ray event at 14/0330Z associated with a CME off the northeast limb. Region 1145 (N16W25) redeveloped spots.
IB. Solar Activity Forecast
Solar activity is expected to be very low to low for the next three days (15 - 17 January).
IIA. Geophysical Activity Summary 13-2100Z to 14-2100Z
Geomagnetic field activity was mostly quiet. An isolated unsettled period was observed at mid-latitudes between 14/1500 - 1800Z.
IIB. Geophysical Activity Forecast
Geomagnetic field activity is expected to be at quiet to unsettled levels on day one (15 January) as the effects of a recurrent coronal hole high speed stream (CH HSS) become geoeffective. Quiet levels are expected on days two and three (16 -17 January) as effects from the CH HSS wane.
III. Event Probabilities 15 Jan to 17 Jan
Class M01%01%01%
Class X01%01%01%
Proton01%01%01%
PCAFgreen
IV. Penticton 10.7 cm Flux
  Observed       14 Jan 079
  Predicted   15 Jan-17 Jan  080/080/080
  90 Day Mean        14 Jan 084
V. Geomagnetic A Indices
  Observed Afr/Ap 13 Jan  004/006
  Estimated     Afr/Ap 14 Jan  007/008
  Predicted    Afr/Ap 15 Jan-17 Jan  007/007-005/005-005/005
VI. Geomagnetic Activity Probabilities 15 Jan to 17 Jan
A. Middle Latitudes
Active20%10%05%
Minor storm10%01%01%
Major-severe storm01%01%01%
B. High Latitudes
Active30%15%10%
Minor storm15%01%01%
Major-severe storm01%01%01%

All times in UTC

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

Whitehorse, YT
Fairbanks, AK

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

Edmonton, AB, Gillam, MB, Saskatoon, SK, Yellowknife, NT
Anchorage, AK, Juneau, AK
The solar wind speed is currently high (749.1 km/sec.)
The direction of the interplanetary magnetic field is slightly South (-6.07nT).
The Disturbance Storm Time index predicts moderate storm conditions right now (-51nT)

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