Viewing archive of Friday, 18 August 2023
Solar activity report
Report of Solar-Geophysical Activity 2023 Aug 18 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 230 Issued at 2200Z on 18 Aug 2023IA. Analysis of Solar Active Regions and Activity from 17-2100Z to 18-2100Z
IB. Solar Activity Forecast
IIA. Geophysical Activity Summary 17-2100Z to 18-2100Z
IIB. Geophysical Activity Forecast
III. Event Probabilities 19 Aug to 21 Aug
| Class M | 20% | 20% | 20% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 18 Aug 150 Predicted 19 Aug-21 Aug 150/152/155 90 Day Mean 18 Aug 166
V. Geomagnetic A Indices
Observed Afr/Ap 17 Aug 010/007 Estimated Afr/Ap 18 Aug 010/011 Predicted Afr/Ap 19 Aug-21 Aug 010/010-008/008-006/008
VI. Geomagnetic Activity Probabilities 19 Aug to 21 Aug
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 15% | 10% | 10% |
| Minor storm | 05% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 20% | 15% | 15% |
| Major-severe storm | 20% | 10% | 10% |
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
Whitehorse, YTFairbanks, AK
Current data suggests there is a slight possibility for aurora to appear at the following high latitude regions in the near future
Edmonton, AB, Gillam, MB, Saskatoon, SK, Yellowknife, NTAnchorage, AK, Juneau, AK
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