Product: Weekly Highlights and Forecasts
:Issued: 2011 Nov 22 1901 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 14 - 20 November 2011
Solar activity has been at low to moderate levels. On November 14 solar activity was at low levels with a C5/Sf flare observed at 14/0930 UTC from Region 1348 (N20, L=088, class/area Dso/120 on 15 November) with an associated Type II radio sweep (estimated shock velocity 610 km/s). Activity increased to moderate levels on November 15 with three M-class flares. Region 1348 produced an M1/Sf flare at 15/0912 UTC and an M1/1f flare at 15/2235 UTC, and Region 1346 (S18, L=339, class/area Dso/140 on 16 November) produced an M1/Sf flare at 15/1243 UTC. From November 16-20, activity returned to low levels with several Type II radio sweeps being reported. The first of these (estimated velocity of 529 km/s) was possibly associated with a C7 flare at 16/1505 UTC from Region 1348. Two Type II radio sweeps occurred on November 17, one (estimated velocity of 456 km/s) associated with a C2 flare at 0133 UTC from Region 1346 and the other (estimated velocity of 558 km/s) associated with a C6/Sf at 0727 UTC from Region 1346. The last Type II radio sweep of the summary period (estimated velocity of 542 km/s) was associated with a C1 flare at 19/0127 UTC from Region 1341 (N18, L=055, class/area Dso/210 on 09 November). Several coronal mass ejections (CMEs) were observed during the period but none were earthward directed.
No proton events were observed at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit was at normal to moderate levels the entire period.
The geomagnetic field was quiet to unsettled. The period began with quiet conditions. Activity levels increased to quiet to unsettled for a brief time on 15 November, but soon returned to quiet levels and remained there for the remainder of the period.
Forecast of Solar and Geomagnetic Activity 23 November - 19 December 2011
Solar activity is expected to be at predominately low levels through the period. There is a slight chance, however, for isolated M-class activity.
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 the entire period.
The geomagnetic field is expected to be generally quiet for most of the outlook period, with the exception of 28 - 29 November when quiet to unsettled levels are expected due to a small, recurrent coronal hole high speed stream.
Product: 27-day Space Weather Outlook Table 27DO.txt:Issued: 2011 Nov 22 1901 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 2011-11-22
#
# UTC Radio Flux Planetary Largest
# Date 10.7 cm A Index Kp Index
2011 Nov 23 140 5 2
2011 Nov 24 145 5 2
2011 Nov 25 145 5 2
2011 Nov 26 155 5 2
2011 Nov 27 145 5 2
2011 Nov 28 150 7 3
2011 Nov 29 150 7 3
2011 Nov 30 155 5 2
2011 Dec 01 160 5 2
2011 Dec 02 160 5 2
2011 Dec 03 165 5 2
2011 Dec 04 165 5 2
2011 Dec 05 165 5 2
2011 Dec 06 165 5 2
2011 Dec 07 165 5 2
2011 Dec 08 160 5 2
2011 Dec 09 160 5 2
2011 Dec 10 155 5 2
2011 Dec 11 150 5 2
2011 Dec 12 140 5 2
2011 Dec 13 135 5 2
2011 Dec 14 135 5 2
2011 Dec 15 135 5 2
2011 Dec 16 135 5 2
2011 Dec 17 135 5 2
2011 Dec 18 135 5 2
2011 Dec 19 135 5 2
(NOAA)