Viewing archive of Saturday, 24 December 2005

Solar activity report

Report of Solar-Geophysical Activity 2005 Dec 24 2203 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 358 Issued at 2200Z on 24 Dec 2005

IA. Analysis of Solar Active Regions and Activity from 23-2100Z to 24-2100Z

Solar activity was very low. New Regions 840 (S03E66) and 841 (N04E74) were numbered today.
IB. Solar Activity Forecast
Solar activity is expected to be very low to low.
IIA. Geophysical Activity Summary 23-2100Z to 24-2100Z
The geomagnetic field was quiet.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be quiet to unsettled on 25 and 26 December. On 27 December, active to minor storm periods are possible due to a coronal hole high speed stream moving into geoeffective position.
III. Event Probabilities 25 Dec to 27 Dec
Class M10%10%10%
Class X01%01%01%
Proton01%01%01%
PCAFgreen
IV. Penticton 10.7 cm Flux
  Observed       24 Dec 092
  Predicted   25 Dec-27 Dec  090/085/085
  90 Day Mean        24 Dec 084
V. Geomagnetic A Indices
  Observed Afr/Ap 23 Dec  001/001
  Estimated     Afr/Ap 24 Dec  004/007
  Predicted    Afr/Ap 25 Dec-27 Dec  005/010-005/007-010/010
VI. Geomagnetic Activity Probabilities 25 Dec to 27 Dec
A. Middle Latitudes
Active15%15%25%
Minor storm05%05%10%
Major-severe storm01%01%05%
B. High Latitudes
Active25%20%25%
Minor storm10%10%10%
Major-severe storm05%01%05%

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