Viewing archive of Friday, 20 July 2001
Solar activity report
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 201 Issued at 2200Z on 20 Jul 2001IA. Analysis of Solar Active Regions and Activity from 19-2100Z to 20-2100Z
IB. Solar Activity Forecast
IIA. Geophysical Activity Summary 19-2100Z to 20-2100Z
IIB. Geophysical Activity Forecast
III. Event Probabilities 21 Jul to 23 Jul
| Class M | 30% | 30% | 30% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 20 Jul 143 Predicted 21 Jul-23 Jul 145/145/145 90 Day Mean 20 Jul 158
V. Geomagnetic A Indices
Observed Afr/Ap 19 Jul 006/009 Estimated Afr/Ap 20 Jul 010/009 Predicted Afr/Ap 21 Jul-23 Jul 010/011-010/008-010/008
VI. Geomagnetic Activity Probabilities 21 Jul to 23 Jul
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 30% | 30% | 30% |
| Minor storm | 15% | 15% | 15% |
| Major-severe storm | 05% | 05% | 05% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 30% | 30% | 30% |
| Minor storm | 15% | 15% | 15% |
| Major-severe storm | 05% | 05% | 05% |
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
Oulu, Rovaniemi, Sodankylä, UtsjokiReykjavik
Kirkenes, Tromsø
Murmansk
Kiruna, Luleå
Current data suggests there is a slight possibility for aurora to appear at the following high latitude regions in the near future
TórshavnKuopio
Bergen, Trondheim
Arkhangelsk, Vorkuta
Sundsvall, Umeå
Current data suggests there is a slight possibility for aurora to appear at the following middle latitude regions in the near future
TamperePetrozavodsk
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Latest alerts
20:45 UTC - Geomagnetic activity
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Coronal hole faces Earth
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