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 UTC
Prepared 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 2003

IA. 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 M30%30%30%
Class X05%05%05%
Proton05%05%05%
PCAFgreen
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
Active35%30%30%
Minor storm20%15%15%
Major-severe storm05%05%05%
B. High Latitudes
Active35%30%30%
Minor storm25%20%20%
Major-severe storm10%05%05%

All times in UTC

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