Viewing archive of Thursday, 8 February 2001

Solar activity report

Report of Solar-Geophysical Activity 2001 Feb 08 2200 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 039 Issued at 2200Z on 08 Feb 2001

IA. Analysis of Solar Active Regions and Activity from 07-2100Z to 08-2100Z

Solar activity was low. Region 9335 (N09E01) produced a C1/Sf at 08/2030 UTC. This area has decayed somewhat since yesterday but contains some mixed polarity fields. Other disk regions have decayed a little or remain small and simple. Newly numbered Regions 9344 (N31E13) and 9345 (S20E19) emerged on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be very low to low. Region 9335 remains the most likely source of flares.
IIA. Geophysical Activity Summary 07-2100Z to 08-2100Z
The geomagnetic field was quiet to unsettled.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be quiet to unsettled.
III. Event Probabilities 09 Feb to 11 Feb
Class M10%10%10%
Class X01%01%01%
Proton01%01%01%
PCAFgreen
IV. Penticton 10.7 cm Flux
  Observed       08 Feb 157
  Predicted   09 Feb-11 Feb  155/150/150
  90 Day Mean        08 Feb 171
V. Geomagnetic A Indices
  Observed Afr/Ap 07 Feb  005/005
  Estimated     Afr/Ap 08 Feb  005/005
  Predicted    Afr/Ap 09 Feb-11 Feb  005/010-005/008-005/005
VI. Geomagnetic Activity Probabilities 09 Feb to 11 Feb
A. Middle Latitudes
Active10%10%10%
Minor storm05%05%05%
Major-severe storm01%01%01%
B. High Latitudes
Active15%15%15%
Minor storm10%10%10%
Major-severe storm01%01%01%

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