Product: Weekly Highlights and Forecasts
:Issued: 2007 Oct 02 2024 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
24 - 30 September 2007
Solar activity was very low. No flares were detected.
No proton events were observed at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit was at high levels during 24 - 27 and 29 – 30 September.
The geomagnetic field was at quiet to active levels on 24 September. Activity decreased to mostly quiet levels on 25 September. The field remained at quiet levels until approximately 27/1500 UTC, then increased to unsettled to major storm levels. Field activity ranged from quiet to minor storm levels during 28 - 29 September with brief major storm periods detected at high latitudes. Activity decreased to quiet to active levels on the last day of the period. ACE solar wind data indicated a recurrent coronal hole high-speed stream was in progress at the start of the period.
:Issued: 2007 Oct 02 2024 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
24 - 30 September 2007
Solar activity was very low. No flares were detected.
No proton events were observed at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit was at high levels during 24 - 27 and 29 – 30 September.
The geomagnetic field was at quiet to active levels on 24 September. Activity decreased to mostly quiet levels on 25 September. The field remained at quiet levels until approximately 27/1500 UTC, then increased to unsettled to major storm levels. Field activity ranged from quiet to minor storm levels during 28 - 29 September with brief major storm periods detected at high latitudes. Activity decreased to quiet to active levels on the last day of the period. ACE solar wind data indicated a recurrent coronal hole high-speed stream was in progress at the start of the period.
Peak solar wind velocity associated with this stream was 704.3 km/sec at 24/0810 TC, followed by a gradual decrease through around midday on 27 September. An interplanetary shock was detected by the ACE spacecraft at 27/1053 UTC accompanied by increased velocities (peak 628.9 km/sec at 28/0104 UTC), increased total field intensity (peak 14.1 nT at 27/1620 UTC), increased densities (peak 21.6 p/cc at 27/1535 UTC), and periods of southward IMF Bz (minimum -9.7 nT at 27/1527 UTC). A recurrent coronal hole high-speed stream commenced around midday on 28 September. Wind velocities gradually increased to a peak of 720.4 km/sec at 30/0116 UTC, then gradually decreased during the remainder of the period. A minor increase in density (peak 10.0 p/cc at 28/1634 UTC) was associated with the onset of the stream. IMF variance associated with the high-speed stream included a peak IMF total field intensity of 12.3 nT at 28/1801 UTC and a minimum southward Bz of -9.1 nT at 28/1911 UTC.
Forecast of Solar and Geomagnetic Activity
03 - 29 October 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 03 - 10 and 21 – 29 October.
Geomagnetic activity is expected to be at unsettled to active levels during 03 - 04 October due to a recurrent coronal hole high-speed stream. Quiet conditions are expected during 05 - 16 October. An increase to quiet to unsettled levels is expected during 17 - 19 October. A further increase to unsettled to active levels is forecast for 20 October as another recurrent coronal hole high-speed stream affects the field. Activity is expected to decrease to quiet to unsettled levels during 21 - 24 October as the high-speed stream subsides. Activity is expected to increase to unsettled to minor storm levels during 25 - 26 October due to another recurrent coronal hole high-speed stream. Activity is expected to decrease to quiet to unsettled levels for the rest of the period
Product: 27-day Space Weather Outlook Table 27DO.txt
:Issued: 2007 Oct 02 2024 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 02
#
# UTC Radio Flux Planetary Largest
# Date 10.7 cm A Index Kp Index
2007 Oct 03 67 15 4
2007 Oct 04 67 10 3
2007 Oct 05 67 5 2
2007 Oct 06 68 5 2
2007 Oct 07 68 5 2
2007 Oct 08 68 5 2
2007 Oct 09 67 5 2
2007 Oct 10 67 5 2
2007 Oct 11 67 5 2
2007 Oct 12 67 5 2
2007 Oct 13 67 5 2
2007 Oct 14 67 5 2
2007 Oct 15 67 5 2
2007 Oct 16 67 5 2
2007 Oct 17 67 10 3
2007 Oct 18 67 10 3
2007 Oct 19 67 10 3
2007 Oct 20 67 15 4
2007 Oct 21 67 10 3
2007 Oct 22 67 8 3
2007 Oct 23 67 5 2
2007 Oct 24 67 8 3
2007 Oct 25 67 15 4
2007 Oct 26 67 25 5
2007 Oct 27 67 12 4
2007 Oct 28 67 5 2
2007 Oct 29 67 8 3
(NOAA)
Forecast of Solar and Geomagnetic Activity
03 - 29 October 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 03 - 10 and 21 – 29 October.
Geomagnetic activity is expected to be at unsettled to active levels during 03 - 04 October due to a recurrent coronal hole high-speed stream. Quiet conditions are expected during 05 - 16 October. An increase to quiet to unsettled levels is expected during 17 - 19 October. A further increase to unsettled to active levels is forecast for 20 October as another recurrent coronal hole high-speed stream affects the field. Activity is expected to decrease to quiet to unsettled levels during 21 - 24 October as the high-speed stream subsides. Activity is expected to increase to unsettled to minor storm levels during 25 - 26 October due to another recurrent coronal hole high-speed stream. Activity is expected to decrease to quiet to unsettled levels for the rest of the period
Product: 27-day Space Weather Outlook Table 27DO.txt
:Issued: 2007 Oct 02 2024 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 02
#
# UTC Radio Flux Planetary Largest
# Date 10.7 cm A Index Kp Index
2007 Oct 03 67 15 4
2007 Oct 04 67 10 3
2007 Oct 05 67 5 2
2007 Oct 06 68 5 2
2007 Oct 07 68 5 2
2007 Oct 08 68 5 2
2007 Oct 09 67 5 2
2007 Oct 10 67 5 2
2007 Oct 11 67 5 2
2007 Oct 12 67 5 2
2007 Oct 13 67 5 2
2007 Oct 14 67 5 2
2007 Oct 15 67 5 2
2007 Oct 16 67 5 2
2007 Oct 17 67 10 3
2007 Oct 18 67 10 3
2007 Oct 19 67 10 3
2007 Oct 20 67 15 4
2007 Oct 21 67 10 3
2007 Oct 22 67 8 3
2007 Oct 23 67 5 2
2007 Oct 24 67 8 3
2007 Oct 25 67 15 4
2007 Oct 26 67 25 5
2007 Oct 27 67 12 4
2007 Oct 28 67 5 2
2007 Oct 29 67 8 3
(NOAA)