Product: Weekly Highlights and Forecasts
:Issued: 2011 Aug 23 2128 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 15 - 21 August 2011
Solar activity was at very low to low levels. Activity was at low levels on 15 August, with several C-class flares from Region 1271 (N16, L=059, class/area Ehc/290 on 18 August). Activity decreased to very low levels on 16 August. Activity increased to low levels on 17-18 August, with several C-class flares from both Region 1271 and
Region 1272 (S21, L=054, class/area Dao/090 on 21 August). No flares were observed on 19 August. Acitivity increased to low levels during 20-21 August. The largest of these was a C3 flare from Region 1271.
No proton events were observed at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit was at normal to moderate levels during 15-16 August. Fluxes increased to normal to high levels on 17-18 August. Fluxes decreased to moderate levels during 19-20 August. Fluxes ranged from normal to moderate on 21 August.
Geomagnetic field activity was at predominantly quiet to unsettled levels with an isolated period of active to minor storm levels on 15 August due to a coronal hole high-speed stream (CH HSS). Activity decreased to quiet to unsettled levels, with isolated active levels during 16-17 August as the CH HSS subsided. Activity decreased to quiet levels during 18-19 August. Activity increased to quiet to unsettled levels during 20-21 August due to a CH HSS.
Forecast of Solar and Geomagnetic Activity 24 August - 19 September 2011
Solar activity is expected to be at very low to low with a chance for moderate levels during 24 August to 06 September until old Region 1263 (N18, L=315) departs. Activity is expected to decrease to very low to low levels for the rest of the period.
No proton events are expected at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit is expected to be at normal to moderate levels through 03 September. Fluxes are expected to increase to moderate to high levels during 04-09 September. Fluxes are expected to decrease to normal to moderate levels during 10-12 September. Fluxes are expected to increase to moderate to high levels during 13-14 September. Fluxes are expected to decrease to normal to moderate levels during 15-19 September.
Geomagnetic field activity is expected to be at quiet levels during 24-26 August. Acitivity is expected to be at quiet to unsettled levels on 27-28 August due to a weak recurrent CH HSS. Activity is xpected be decrease to quiet levels during 29 August - 02 September. Activity is expected to increase during 03-05 September due to a recurrent CH HSS. Predominantly quiet levels are expected during 06-10 September. Activity is expected to increase to quiet to active levels during 11-12 September due to a recurrent CH HSS.Predominantly quiet levels are expected for the rest of the period.
Product: 27-day Space Weather Outlook Table 27DO.txt
:Issued: 2011 Aug 23 2128 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 2011-08-23
#
# UTC Radio Flux Planetary Largest
# Date 10.7 cm A Index Kp Index
2011 Aug 24 112 5 2
2011 Aug 25 112 5 2
2011 Aug 26 112 5 2
2011 Aug 27 115 7 2
2011 Aug 28 117 5 2
2011 Aug 29 117 5 2
2011 Aug 30 115 5 2
2011 Aug 31 111 5 2
2011 Sep 01 104 5 2
2011 Sep 02 103 5 2
2011 Sep 03 102 8 3
2011 Sep 04 102 10 3
2011 Sep 05 100 10 3
2011 Sep 06 92 5 2
2011 Sep 07 86 7 2
2011 Sep 08 85 5 2
2011 Sep 09 85 5 2
2011 Sep 10 90 5 2
2011 Sep 11 92 8 3
2011 Sep 12 95 12 4
2011 Sep 13 100 5 2
2011 Sep 14 100 5 2
2011 Sep 15 100 5 2
2011 Sep 16 103 5 2
2011 Sep 17 103 5 2
2011 Sep 18 109 7 2
2011 Sep 19 110 5 2
(NOAA)
:Issued: 2011 Aug 23 2128 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 15 - 21 August 2011
Solar activity was at very low to low levels. Activity was at low levels on 15 August, with several C-class flares from Region 1271 (N16, L=059, class/area Ehc/290 on 18 August). Activity decreased to very low levels on 16 August. Activity increased to low levels on 17-18 August, with several C-class flares from both Region 1271 and
Region 1272 (S21, L=054, class/area Dao/090 on 21 August). No flares were observed on 19 August. Acitivity increased to low levels during 20-21 August. The largest of these was a C3 flare from Region 1271.
No proton events were observed at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit was at normal to moderate levels during 15-16 August. Fluxes increased to normal to high levels on 17-18 August. Fluxes decreased to moderate levels during 19-20 August. Fluxes ranged from normal to moderate on 21 August.
Geomagnetic field activity was at predominantly quiet to unsettled levels with an isolated period of active to minor storm levels on 15 August due to a coronal hole high-speed stream (CH HSS). Activity decreased to quiet to unsettled levels, with isolated active levels during 16-17 August as the CH HSS subsided. Activity decreased to quiet levels during 18-19 August. Activity increased to quiet to unsettled levels during 20-21 August due to a CH HSS.
Forecast of Solar and Geomagnetic Activity 24 August - 19 September 2011
Solar activity is expected to be at very low to low with a chance for moderate levels during 24 August to 06 September until old Region 1263 (N18, L=315) departs. Activity is expected to decrease to very low to low levels for the rest of the period.
No proton events are expected at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit is expected to be at normal to moderate levels through 03 September. Fluxes are expected to increase to moderate to high levels during 04-09 September. Fluxes are expected to decrease to normal to moderate levels during 10-12 September. Fluxes are expected to increase to moderate to high levels during 13-14 September. Fluxes are expected to decrease to normal to moderate levels during 15-19 September.
Geomagnetic field activity is expected to be at quiet levels during 24-26 August. Acitivity is expected to be at quiet to unsettled levels on 27-28 August due to a weak recurrent CH HSS. Activity is xpected be decrease to quiet levels during 29 August - 02 September. Activity is expected to increase during 03-05 September due to a recurrent CH HSS. Predominantly quiet levels are expected during 06-10 September. Activity is expected to increase to quiet to active levels during 11-12 September due to a recurrent CH HSS.Predominantly quiet levels are expected for the rest of the period.
Product: 27-day Space Weather Outlook Table 27DO.txt
:Issued: 2011 Aug 23 2128 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 2011-08-23
#
# UTC Radio Flux Planetary Largest
# Date 10.7 cm A Index Kp Index
2011 Aug 24 112 5 2
2011 Aug 25 112 5 2
2011 Aug 26 112 5 2
2011 Aug 27 115 7 2
2011 Aug 28 117 5 2
2011 Aug 29 117 5 2
2011 Aug 30 115 5 2
2011 Aug 31 111 5 2
2011 Sep 01 104 5 2
2011 Sep 02 103 5 2
2011 Sep 03 102 8 3
2011 Sep 04 102 10 3
2011 Sep 05 100 10 3
2011 Sep 06 92 5 2
2011 Sep 07 86 7 2
2011 Sep 08 85 5 2
2011 Sep 09 85 5 2
2011 Sep 10 90 5 2
2011 Sep 11 92 8 3
2011 Sep 12 95 12 4
2011 Sep 13 100 5 2
2011 Sep 14 100 5 2
2011 Sep 15 100 5 2
2011 Sep 16 103 5 2
2011 Sep 17 103 5 2
2011 Sep 18 109 7 2
2011 Sep 19 110 5 2
(NOAA)