Viewing archive of Saturday, 13 November 2004
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 2004 Nov 13 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 318 Issued at 2200Z on 13 Nov 2004IA. Analysis of Solar Active Regions and Activity from 12-2100Z to 13-2100Z Solar activity was very low. Activity was limited to
occasional B-class activity this period. Several new spots emerged
in Region 700 (N05W27), but other than occasional brightness
fluctuations, the region was quiet. No other significant activity or
changes were noted.
IB. Solar Activity Forecast
Solar activity is expected to be very
low to low. Isolated low C-class activity is possible.
IIA. Geophysical Activity Summary 12-2100Z to 13-2100Z
The geomagnetic field was quiet to unsettled with isolated high
latitude active periods. Solar wind speed remains slightly elevated,
ranging from 450 to 500 km/s. The greater than 10 MeV proton event
that began on 07/1910Z is nearing an end. The current proton flux is
ranging from 5 to 10 pfu. The greater than 2 MeV electron flux at
geosynchronous orbit was at high levels.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be quiet to unsettled with isolated active periods. The
greater than 2 MeV proton event in progress since 07 November is
expected to end today.
III. Event Probabilities 14 Nov to 16 Nov
| Class M | 10% | 10% | 10% |
| Class X | 01% | 01% | 01% |
| Proton | 05% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 13 Nov 096 Predicted 14 Nov-16 Nov 095/095/100 90 Day Mean 13 Nov 108
V. Geomagnetic A Indices
Observed Afr/Ap 12 Nov 023/030 Estimated Afr/Ap 13 Nov 010/012 Predicted Afr/Ap 14 Nov-16 Nov 008/010-008/010-010/012
VI. Geomagnetic Activity Probabilities 14 Nov to 16 Nov
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 20% | 20% | 20% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 25% | 25% | 25% |
| Minor storm | 10% | 10% | 10% |
| Major-severe storm | 01% | 01% | 01% |
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