Viewing archive of Saturday, 17 July 1999
Solar activity report
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 198 Issued at 2200Z on 17 JUL 1999IA. Analysis of Solar Active Regions and Activity from 16-2100Z to 17-2100Z
IB. Solar Activity Forecast
IIA. Geophysical Activity Summary 16-2100Z to 17-2100Z
IIB. Geophysical Activity Forecast
III. Event Probabilities 18 JUL to 20 JUL
| Class M | 50% | 50% | 50% |
| Class X | 05% | 05% | 05% |
| Proton | 01% | 01% | 01% |
| PCAF | GREEN | ||
IV. Penticton 10.7 cm Flux
Observed 17 JUL 137 Predicted 18 JUL-20 JUL 150/155/160 90 Day Mean 17 JUL 152
V. Geomagnetic A Indices
OBSERVED AFR/AP 16 JUL 005/005 ESTIMATED AFR/AP 17 JUL 005/005 PREDICTED AFR/AP 18 JUL-20 JUL 005/007-005/007-010/010
VI. Geomagnetic Activity Probabilities 18 JUL to 20 JUL
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 10% | 10% | 20% |
| Minor storm | 01% | 01% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 20% |
| Minor storm | 01% | 01% | 05% |
| Major-severe storm | 01% | 01% | 01% |
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
Gillam, MB, Yellowknife, NTCurrent data suggests there is a slight possibility for aurora to appear at the following high latitude regions in the near future
Edmonton, AB, Iqaluit, NU, Saskatoon, SK, Whitehorse, YTJuneau, AK
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