Viewing archive of Tuesday, 21 February 2012
Solar activity report
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 052 Issued at 2200Z on 21 Feb 2012IA. Analysis of Solar Active Regions and Activity from 20-2100Z to 21-2100Z
IB. Solar Activity Forecast
IIA. Geophysical Activity Summary 20-2100Z to 21-2100Z
IIB. Geophysical Activity Forecast
III. Event Probabilities 22 Feb to 24 Feb
| Class M | 10% | 10% | 10% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 21 Feb 103 Predicted 22 Feb-24 Feb 100/100/100 90 Day Mean 21 Feb 130
V. Geomagnetic A Indices
Observed Afr/Ap 20 Feb 014/017 Estimated Afr/Ap 21 Feb 007/007 Predicted Afr/Ap 22 Feb-24 Feb 006/005-007/008-007/010
VI. Geomagnetic Activity Probabilities 22 Feb to 24 Feb
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 01% | 10% | 15% |
| Minor storm | 01% | 01% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 20% | 15% |
| Minor storm | 10% | 20% | 20% |
| Major-severe storm | 01% | 10% | 20% |
All times in UTC
Current data suggests there is a moderate possibility for aurora to appear at the following high latitude regions in the near future
ReykjavikCurrent data suggests there is a slight possibility for aurora to appear at the following high latitude regions in the near future
TórshavnOulu, Rovaniemi, Kuopio, Sodankylä, Utsjoki
Kirkenes, Tromsø, Trondheim
Arkhangelsk, Murmansk, Vorkuta
Kiruna, Luleå, Sundsvall, Umeå
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