Viewing archive of Saturday, 2 June 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 Jun 02 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 153 Issued at 2200Z on 02 Jun 2001IA. Analysis of Solar Active Regions and Activity from 01-2100Z to 02-2100Z Solar activity has been low. Region 9484 (S06E22)
produced several optical flares, the largest being a C1.3/Sf at
02/0019 UTC. This region has exhibited growth in size, spot count
and plage intensity, and is currently in a Dao/beta-gamma
configuration. Two new regions were numbered today: 9486 (N28W08)
and 9487 (N20E75). New Region 9486 has emerged rapidly in a
Dao/beta configuration, but has not yet produced any notable flare
activity.
IB. Solar Activity Forecast
Solar activity is expected to be
predominantly low. A chance for isolated moderate flare activity
exists for Regions 9484 and 9486.
IIA. Geophysical Activity Summary 01-2100Z to 02-2100Z
The geomagnetic field has been at unsettled to minor storm levels.
The onset of high speed stream effects from a favorably positioned
coronal hole have been evident over the last 24 hours. Minor storm
conditions were observed during 02/0000-0300 UTC.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be unsettled, with isolated active conditions possible
through June 3, while coronal hole effects remain in progress.
Activity is expected to taper off through June 4 and 5, to mainly
quiet to unsettled conditions.
III. Event Probabilities 03 Jun to 05 Jun
| Class M | 25% | 30% | 35% |
| Class X | 01% | 01% | 05% |
| Proton | 01% | 01% | 05% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 02 Jun 134 Predicted 03 Jun-05 Jun 137/140/145 90 Day Mean 02 Jun 169
V. Geomagnetic A Indices
Observed Afr/Ap 01 Jun 009/011 Estimated Afr/Ap 02 Jun 020/023 Predicted Afr/Ap 03 Jun-05 Jun 012/015-012/012-010/010
VI. Geomagnetic Activity Probabilities 03 Jun to 05 Jun
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 25% | 25% | 20% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 30% | 25% | 20% |
| Minor storm | 10% | 10% | 05% |
| Major-severe storm | 01% | 01% | 01% |
All times in UTC
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