Product: Weekly Highlights and Forecasts
:Issued: 2007 Oct 23 1853 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Product description and SWPC contact on the Web
# http://www.swpc.noaa.gov/weekly.html
#
# Weekly Highlights and Forecasts
#
Highlights of Solar and Geomagnetic Activity
15 - 21 October 2007
Solar activity was very low. No flares were detected. The visible
disk was spotless.
No proton events were observed at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit reached high levels during 20 - 21 October.
The geomagnetic field was quiet during 15 - 17 October. Activity increased to quiet to unsettled levels on 18 October. A further increase to quiet to minor storm levels occurred on 19 October with a brief period of major storming detected at high latitudes. Activity decreased to quiet to active levels on 20 October with a brief period of minor storming detected at high latitudes. Field activity decreased to quiet levels on the last day of the period.
ACE solar wind data indicated the increased activity during 18 - 20 October was due to a recurrent coronal hole high-speed stream. The high-speed stream began on 18 October and ended on 21 October. A co-rotating interaction region (CIR) began late on 17 October in
advance of the high-speed stream. IMF changes associated with the CIR included increased Bt (peak 14.1 nT at 18/1942 UTC) and increased Bz variability (minimum -11.4 nT at 18/1929 UTC). A minor proton density increase was also associated with the CIR. Solar wind velocities increased during 18 - 20 October and reached a peak of 697.3 km/sec at 20/0310 UTC. The high-speed stream began to gradually subside around midday on 20 October.
Forecast of Solar and Geomagnetic Activity
24 October - 19 November 2007
Solar activity is expected to be very low.
No proton events are expected at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit is expected to reach high levels during 24 October - 08 November and 16 - 19 November.
Activity is expected to be at unsettled to minor storm levels from 24 October through midday on 27 October due to a recurrent coronal hole high-speed stream. Activity is expected to decrease to quiet to unsettled levels from midday on the 27th through the 29th. Activity is expected to increase to unsettled to active levels during 30 - 31 October as another recurrent coronal hole high-speed stream affects the field. Quiet conditions are expected during 01 - 13 November. Activity is expected to increase to quiet to unsettled levels during 14 - 15 November. A further increase to unsettled to active levels is forecast for 16 November due to a recurrent coronal hole high-speed stream. Quiet to unsettled conditions are expected for
the rest of the period.
:Issued: 2007 Oct 23 1853 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Product description and SWPC contact on the Web
# http://www.swpc.noaa.gov/weekly.html
#
# Weekly Highlights and Forecasts
#
Highlights of Solar and Geomagnetic Activity
15 - 21 October 2007
Solar activity was very low. No flares were detected. The visible
disk was spotless.
No proton events were observed at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit reached high levels during 20 - 21 October.
The geomagnetic field was quiet during 15 - 17 October. Activity increased to quiet to unsettled levels on 18 October. A further increase to quiet to minor storm levels occurred on 19 October with a brief period of major storming detected at high latitudes. Activity decreased to quiet to active levels on 20 October with a brief period of minor storming detected at high latitudes. Field activity decreased to quiet levels on the last day of the period.
ACE solar wind data indicated the increased activity during 18 - 20 October was due to a recurrent coronal hole high-speed stream. The high-speed stream began on 18 October and ended on 21 October. A co-rotating interaction region (CIR) began late on 17 October in
advance of the high-speed stream. IMF changes associated with the CIR included increased Bt (peak 14.1 nT at 18/1942 UTC) and increased Bz variability (minimum -11.4 nT at 18/1929 UTC). A minor proton density increase was also associated with the CIR. Solar wind velocities increased during 18 - 20 October and reached a peak of 697.3 km/sec at 20/0310 UTC. The high-speed stream began to gradually subside around midday on 20 October.
Forecast of Solar and Geomagnetic Activity
24 October - 19 November 2007
Solar activity is expected to be very low.
No proton events are expected at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit is expected to reach high levels during 24 October - 08 November and 16 - 19 November.
Activity is expected to be at unsettled to minor storm levels from 24 October through midday on 27 October due to a recurrent coronal hole high-speed stream. Activity is expected to decrease to quiet to unsettled levels from midday on the 27th through the 29th. Activity is expected to increase to unsettled to active levels during 30 - 31 October as another recurrent coronal hole high-speed stream affects the field. Quiet conditions are expected during 01 - 13 November. Activity is expected to increase to quiet to unsettled levels during 14 - 15 November. A further increase to unsettled to active levels is forecast for 16 November due to a recurrent coronal hole high-speed stream. Quiet to unsettled conditions are expected for
the rest of the period.
Product: 27-day Space Weather Outlook Table 27DO.txt
:Issued: 2007 Oct 23 1853 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Product description and SWPC contact on the Web
# http://www.swpc.noaa.gov/wwire.html
#
# 27-day Space Weather Outlook Table
# Issued 2007 Oct 23
#
# UTC Radio Flux Planetary Largest
# Date 10.7 cm A Index Kp Index
2007 Oct 24 67 15 4
2007 Oct 25 67 20 5
2007 Oct 26 67 25 5
2007 Oct 27 67 12 3
2007 Oct 28 67 10 3
2007 Oct 29 67 8 3
2007 Oct 30 67 15 4
2007 Oct 31 68 10 3
2007 Nov 01 68 5 2
2007 Nov 02 68 5 2
2007 Nov 03 68 5 2
2007 Nov 04 68 5 2
2007 Nov 05 68 5 2
2007 Nov 06 68 5 2
2007 Nov 07 68 5 2
2007 Nov 08 68 5 2
2007 Nov 09 68 5 2
2007 Nov 10 67 5 2
2007 Nov 11 67 5 2
2007 Nov 12 67 5 2
2007 Nov 13 67 5 2
2007 Nov 14 67 10 3
2007 Nov 15 67 12 3
2007 Nov 16 67 15 4
2007 Nov 17 67 10 3
2007 Nov 18 67 5 2
2007 Nov 19 67 5 2
(NOAA)
:Issued: 2007 Oct 23 1853 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Product description and SWPC contact on the Web
# http://www.swpc.noaa.gov/wwire.html
#
# 27-day Space Weather Outlook Table
# Issued 2007 Oct 23
#
# UTC Radio Flux Planetary Largest
# Date 10.7 cm A Index Kp Index
2007 Oct 24 67 15 4
2007 Oct 25 67 20 5
2007 Oct 26 67 25 5
2007 Oct 27 67 12 3
2007 Oct 28 67 10 3
2007 Oct 29 67 8 3
2007 Oct 30 67 15 4
2007 Oct 31 68 10 3
2007 Nov 01 68 5 2
2007 Nov 02 68 5 2
2007 Nov 03 68 5 2
2007 Nov 04 68 5 2
2007 Nov 05 68 5 2
2007 Nov 06 68 5 2
2007 Nov 07 68 5 2
2007 Nov 08 68 5 2
2007 Nov 09 68 5 2
2007 Nov 10 67 5 2
2007 Nov 11 67 5 2
2007 Nov 12 67 5 2
2007 Nov 13 67 5 2
2007 Nov 14 67 10 3
2007 Nov 15 67 12 3
2007 Nov 16 67 15 4
2007 Nov 17 67 10 3
2007 Nov 18 67 5 2
2007 Nov 19 67 5 2
(NOAA)
