Viewing archive of Monday, 30 June 2003
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 2003 Jun 30 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 181 Issued at 2200Z on 30 Jun 2003IA. Analysis of Solar Active Regions and Activity from 29-2100Z to 30-2100Z
Solar activity was low. Today's activity was
characterized by occasional C-class flares. Most of these were from
Region 396 (S06W54). Region 397 (N11E40) is the largest, most
complex group on the disk but only produced two C-class flares
during the past 24 hours. New Regions 398 (N04E66) and 399 (N15E52)
were assigned today.
IB. Solar Activity Forecast
Solar activity is expected to be
mostly low, but with a chance for an isolated M-class event sometime
during the next three days. Regions 396 and 397 are the most likely
sources for energetic flare activity.
IIA. Geophysical Activity Summary 29-2100Z to 30-2100Z
The geomagnetic field ranged from unsettled to minor storm levels
during the past 24 hours. The disturbance is due to a high speed
solar wind stream associated with a well-positioned solar coronal
hole. The greater than 2 MeV electron flux was at high levels during
the past 24 hours.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be unsettled to slightly active for the next 24 hours.
The high speed wind stream is expected to slowly subside.
Predominantly unsettled levels should prevail during the second and
third days, but there will be a chance for isolated active periods,
especially at the higher latitudes.
III. Event Probabilities 01 Jul to 03 Jul
| Class M | 30% | 30% | 30% |
| Class X | 05% | 05% | 05% |
| Proton | 05% | 05% | 05% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 30 Jun 128 Predicted 01 Jul-03 Jul 130/130/135 90 Day Mean 30 Jun 124
V. Geomagnetic A Indices
Observed Afr/Ap 29 Jun 014/026 Estimated Afr/Ap 30 Jun 025/020 Predicted Afr/Ap 01 Jul-03 Jul 015/020-010/015-010/015
VI. Geomagnetic Activity Probabilities 01 Jul to 03 Jul
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 35% | 30% | 30% |
| Minor storm | 20% | 15% | 15% |
| Major-severe storm | 05% | 05% | 05% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 35% | 30% | 30% |
| Minor storm | 25% | 20% | 20% |
| Major-severe storm | 10% | 05% | 05% |
All times in UTC
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