Weekly Highlights and Forecasts
:Issued: 2007 Jun 19 1923 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Environment Center
# Product description and SEC contact on the Web
# http://www.sec.noaa.gov/weekly.html
:Issued: 2007 Jun 19 1923 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Environment Center
# Product description and SEC contact on the Web
# http://www.sec.noaa.gov/weekly.html
# Weekly Highlights and Forecasts
Highlights of Solar and Geomagnetic Activity
11 - 17 June 2007
Solar activity was very low. Old Region 960 (S07, L = 176, class/area Fkc/540 on 03 June) produced isolated B-class flares before it departed the visible disk on 14 June.
No proton events were observed at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit was at normal levels.
The geomagnetic field was at quiet to unsettled levels during 11 - 13 June. Field activity increased to quiet to active levels on 14 June with brief, localized storm periods detected at middle and high latitudes. Quiet to unsettled levels occurred during the rest of the period with brief active periods detected at middle and high latitudes. ACE data indicated a solar sector boundary crossing on 13 June followed shortly thereafter by a recurrent coronal hole high-speed stream. The boundary crossing (toward (-) to away (+)) occurred at around 13/1800 UTC and was accompanied by increased proton densities (peak 16 p/cc at 13/1807 UTC) as well as increased total IMF field intensity (peak 12 nT at 14/0136 UTC) and Bz variability (minimum - 11 nT at 14/0016 UTC). The recurrent high speed stream commenced during the latter half of 13 June and eventually reached a peak of 628 km/sec at 15/0016 UTC followed by a gradual decrease in velocities.
Forecast of Solar and Geomagnetic Activity
20 June - 16 July 2007
Solar activity is expected to be at very low to low levels. Isolated
C-class flares are possible during 28 June - 11 July.
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 20 June - 05 July.
Activity is expected to be at unsettled to minor storm levels during 20 - 22 June due to a recurrent coronal hole high-speed stream. Activity is expected to decrease to mostly quiet levels during 23 - 29 June. Quiet to active conditions are expected during 30 June - 01 July as another recurrent coronal hole high-speed stream affects the field. Mostly quiet levels are expected during 02 - 10 July. Field activity is expected to increase to quiet to active levels on 11 July due to a recurrent coronal hole high-speed stream. Mostly quiet conditions are expected for the rest of the period.
:Product: 27-day Space Weather Outlook Table 27DO.txt
:Issued: 2007 Jun 19 1923 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Environment Center
# Product description and SEC contact on the Web
# http://www.sec.noaa.gov/wwire.html
#
# 27-day Space Weather Outlook Table
# Issued 2007 Jun 19
#
# UTC Radio Flux Planetary Largest
# Date 10.7 cm A Index Kp Index
2007 Jun 20 68 15 3
2007 Jun 21 68 20 5
2007 Jun 22 68 15 4
2007 Jun 23 70 10 3
2007 Jun 24 70 5 2
2007 Jun 25 70 5 2
2007 Jun 26 70 5 2
2007 Jun 27 70 5 2
2007 Jun 28 75 5 2
2007 Jun 29 80 5 2
2007 Jun 30 80 15 4
2007 Jul 01 80 15 4
2007 Jul 02 80 8 3
2007 Jul 03 80 5 2
2007 Jul 04 80 5 2
2007 Jul 05 80 5 2
2007 Jul 06 80 5 2
2007 Jul 07 75 5 2
2007 Jul 08 75 5 2
2007 Jul 09 75 5 2
2007 Jul 10 75 5 2
2007 Jul 11 70 15 4
2007 Jul 12 70 10 3
2007 Jul 13 70 8 3
2007 Jul 14 70 5 2
2007 Jul 15 70 5 2
2007 Jul 16 70 5 2
(Source: http://www.sec.noaa.gov/radio ; www.staff.amu.edu.pl/~zbzw/glob/solar.htm)