Viewing archive of Monday, 9 July 2001
Solar activity report
Any mentioned solar flare in this report has a scaling factor applied by the Space Weather Prediction Center (SWPC). Because of the SWPC scaling factor, solar flares are reported as 42% smaller than for the science quality data. The scaling factor has been removed from our archived solar flare data to reflect the true physical units.
Report of Solar-Geophysical Activity 2001 Jul 09 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 190 Issued at 2200Z on 09 Jul 2001IA. Analysis of Solar Active Regions and Activity from 08-2100Z to 09-2100Z Solar activity has been low. The largest event of the
period was an optically uncorrelated C3 flare at 09/0542 UTC.
Other C-class flares were produced throughout the period by Region
9531 (S06E07), the largest being a C2/Sf at 09/0046 UTC. New Region
9533 (S09E29) was numbered today.
IB. Solar Activity Forecast
Solar activity is expected to be
predominantly low. Region 9531 and returning regions expected on
the east limb may be potential sources of isolated moderate activity
within the next three days.
IIA. Geophysical Activity Summary 08-2100Z to 09-2100Z
The geomagnetic field was at quiet to minor storm levels. A single
period of minor storm occurred at Boulder during 09/0000-0300 UTC.
Conditions trended toward predominantly quiet levels later in the
day.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be predominantly quiet to unsettled for the next three
days.
III. Event Probabilities 10 Jul to 12 Jul
| Class M | 20% | 25% | 30% |
| Class X | 01% | 01% | 05% |
| Proton | 01% | 01% | 05% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 09 Jul 130 Predicted 10 Jul-12 Jul 135/140/145 90 Day Mean 09 Jul 159
V. Geomagnetic A Indices
Observed Afr/Ap 08 Jul 011/016 Estimated Afr/Ap 09 Jul 011/012 Predicted Afr/Ap 10 Jul-12 Jul 008/008-008/008-008/010
VI. Geomagnetic Activity Probabilities 10 Jul to 12 Jul
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 20% | 20% | 25% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
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