Weekly Highlights and Forecasts
:Issued: 2010 Aug 31 1821 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Product description and SWPC web contact www.swpc.noaa.gov/weekly.html
#
# Weekly Highlights and Forecasts
#
Highlights of Solar and Geomagnetic Activity
23 - 29 August 2010
Solar activity was at very low levels during the period. The week’s activity consisted of a few, low level B-class flares from Region 1100 (S19, L=207, class/area Axx/010 on 25 August) and Region 1101 (N12, L=084, class/area Hrx/140 on 29 August). Region 1101 rotated on the solar disk on 24 August, while Region 1102 (N27, L=104, class/area Cro/030 on 29 August) formed on the disk on 29 August.
No proton events were observed at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit was at normal to moderate levels on 23-24 August. High levels occurred on 25 August for the rest of the period.
Geomagnetic field activity ranged from quiet to minor storm levels, with periods of major to severe conditions at high latitudes, due to a recurrent coronal hole high speed stream (CH HSS). Mostly quiet levels prevailed on 23 August except for the last period when active conditions occurred. Solar wind observations from the ACE spacecraft showed an enhanced interplanetary field (IMF) intensity (peak 22 nT at 23/2241Z) combined with intermittent periods of southward IMF Bz (maximum deflection -14 nT at 24/0109Z) with an increase in velocities from 358 km/s to 709 km/s. Quiet to active levels, with minor to severe storming at high latitudes occurred on 24 August. Quiet to minor storm conditions, with isolated major
storm levels at high latitudes was observed on 25 August. Quiet to active levels, with minor to major storm conditions at high latitudes, were present on 26-27 August. Mostly quiet levels
returned on 28-29 August as the CH HSS declined.
Forecast of Solar and Geomagnetic Activity
01 - 27 September 2010
Solar activity is expected to be at very low levels. Very low to low levels are possible through 15 September as Region 1098 and 1099 return to the front of the solar disk.
No proton events are expected at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit is expected to be at high levels from 01-12 September. Normal to moderate levels are expected for 13-24 September. High levels are expected to return for 25 September to the remainder of the period due to a recurrent CH HSS.
Geomagnetic field activity is expected to be predominantly quiet for 01-18 September. Quiet to unsettled, with isolated active conditions are expected for 19-22 September due to a recurrent CH HSS. Quiet levels should prevail for 22 September through the remainder of the forecast period.
Product: 27-day Space Weather Outlook Table 27DO.txt
:Issued: 2010 Aug 31 1821 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Product description and SWPC web contact www.swpc.noaa.gov/wwire.html
#
# 27-day Space Weather Outlook Table
# Issued 2010 Aug 31
#
# UTC Radio Flux Planetary Largest
# Date 10.7 cm A Index Kp Index
2010 Sep 01 76 5 2
2010 Sep 02 76 5 2
2010 Sep 03 76 5 2
2010 Sep 04 77 5 2
2010 Sep 05 76 5 2
2010 Sep 06 75 5 2
2010 Sep 07 75 5 2
2010 Sep 08 75 5 2
2010 Sep 09 76 5 2
2010 Sep 10 76 5 2
2010 Sep 11 78 5 2
2010 Sep 12 80 5 2
2010 Sep 13 80 5 2
2010 Sep 14 80 5 2
2010 Sep 15 78 5 2
2010 Sep 16 78 5 2
2010 Sep 17 76 5 2
2010 Sep 18 76 5 2
2010 Sep 19 75 8 3
2010 Sep 20 75 12 3
2010 Sep 21 75 10 3
2010 Sep 22 74 8 3
2010 Sep 23 74 5 2
2010 Sep 24 74 5 2
2010 Sep 25 74 5 2
2010 Sep 26 74 5 2
2010 Sep 27 74 5 2
(NOAA)
:Issued: 2010 Aug 31 1821 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Product description and SWPC web contact www.swpc.noaa.gov/weekly.html
#
# Weekly Highlights and Forecasts
#
Highlights of Solar and Geomagnetic Activity
23 - 29 August 2010
Solar activity was at very low levels during the period. The week’s activity consisted of a few, low level B-class flares from Region 1100 (S19, L=207, class/area Axx/010 on 25 August) and Region 1101 (N12, L=084, class/area Hrx/140 on 29 August). Region 1101 rotated on the solar disk on 24 August, while Region 1102 (N27, L=104, class/area Cro/030 on 29 August) formed on the disk on 29 August.
No proton events were observed at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit was at normal to moderate levels on 23-24 August. High levels occurred on 25 August for the rest of the period.
Geomagnetic field activity ranged from quiet to minor storm levels, with periods of major to severe conditions at high latitudes, due to a recurrent coronal hole high speed stream (CH HSS). Mostly quiet levels prevailed on 23 August except for the last period when active conditions occurred. Solar wind observations from the ACE spacecraft showed an enhanced interplanetary field (IMF) intensity (peak 22 nT at 23/2241Z) combined with intermittent periods of southward IMF Bz (maximum deflection -14 nT at 24/0109Z) with an increase in velocities from 358 km/s to 709 km/s. Quiet to active levels, with minor to severe storming at high latitudes occurred on 24 August. Quiet to minor storm conditions, with isolated major
storm levels at high latitudes was observed on 25 August. Quiet to active levels, with minor to major storm conditions at high latitudes, were present on 26-27 August. Mostly quiet levels
returned on 28-29 August as the CH HSS declined.
Forecast of Solar and Geomagnetic Activity
01 - 27 September 2010
Solar activity is expected to be at very low levels. Very low to low levels are possible through 15 September as Region 1098 and 1099 return to the front of the solar disk.
No proton events are expected at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit is expected to be at high levels from 01-12 September. Normal to moderate levels are expected for 13-24 September. High levels are expected to return for 25 September to the remainder of the period due to a recurrent CH HSS.
Geomagnetic field activity is expected to be predominantly quiet for 01-18 September. Quiet to unsettled, with isolated active conditions are expected for 19-22 September due to a recurrent CH HSS. Quiet levels should prevail for 22 September through the remainder of the forecast period.
Product: 27-day Space Weather Outlook Table 27DO.txt
:Issued: 2010 Aug 31 1821 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Product description and SWPC web contact www.swpc.noaa.gov/wwire.html
#
# 27-day Space Weather Outlook Table
# Issued 2010 Aug 31
#
# UTC Radio Flux Planetary Largest
# Date 10.7 cm A Index Kp Index
2010 Sep 01 76 5 2
2010 Sep 02 76 5 2
2010 Sep 03 76 5 2
2010 Sep 04 77 5 2
2010 Sep 05 76 5 2
2010 Sep 06 75 5 2
2010 Sep 07 75 5 2
2010 Sep 08 75 5 2
2010 Sep 09 76 5 2
2010 Sep 10 76 5 2
2010 Sep 11 78 5 2
2010 Sep 12 80 5 2
2010 Sep 13 80 5 2
2010 Sep 14 80 5 2
2010 Sep 15 78 5 2
2010 Sep 16 78 5 2
2010 Sep 17 76 5 2
2010 Sep 18 76 5 2
2010 Sep 19 75 8 3
2010 Sep 20 75 12 3
2010 Sep 21 75 10 3
2010 Sep 22 74 8 3
2010 Sep 23 74 5 2
2010 Sep 24 74 5 2
2010 Sep 25 74 5 2
2010 Sep 26 74 5 2
2010 Sep 27 74 5 2
(NOAA)