Thursday, November 18, 2010

Weekly Propagation Forecast Bulletins

Product: Weekly Highlights and Forecasts
:Issued: 2010 Nov 16 2125 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
08 - 14 November 2010

Solar activity was at very low to low levels. Activity was at mostly very low levels during the first half of the period. Activity increased to low levels during the second half of the period with frequent flares including some C-class from Regions 1021 (S20, L = 213, class/area Ero/050 on 08 November), 1023 (S23, L = 190, class/area Dai/080 on 11 November), and 1024 (N15, L = 171, class/area Dsi/080 on 13 November). A few C-class flares from Region 1023 during 11 - 13 November were associated with front-sided halo and partial-halo CMEs. Another front-sided partial-halo CME occurred around 13/0600Z associated with a filament disappearance near N31W09.

No proton events were observed at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit was at normal to moderate levels for the beginning of the period and reached high levels on 13-14 November.

Geomagnetic field activity was mostly quiet during 08 - 10 November. Activity increased to unsettled late on 10 November as a CME passage began to disturb the field. Activity increased to quiet to active levels during 11 - 12 November with minor to major storm periods at high latitudes as the CME passage continued. Field activity decreased to quiet levels after 12/1500Z as CME effects subsided. Quiet to unsettled levels occurred on 13-14 November.

Forecast of Solar and Geomagnetic Activity
17 November - 13 December 2010

Solar activity is expected to be very low to low during 17 - 22 November as many of the active regions rotate off the visible disk. Activity is expected to be very low during 23 November - 04 December. Very low to low levels are once again expected 05-13 December as older regions rotate back onto the visible disk.

No proton events are expected at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit is expected to be at high levels during 17 - 19 November. Flux levels are expected to return to normal levels for the remainder of the forecast period.

Geomagnetic field activity is expected to be at quiet to unsettled levels on 17-19 November due to the arrival of CMEs observed during 12 - 13 November in association with elevated solar wind speeds due to a recurrent coronal hole high-speed stream (CH HSS). Quiet conditions are expected from 20 November -11 December. Quiet to unsettled levels are expected on 12-13 December as another CH HSS moves into geoeffective position.

Product: 27-day Space Weather Outlook Table 27DO.txt
:Issued: 2010 Nov 16 2125 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 2010 Nov 16
#
# UTC Radio Flux Planetary Largest
# Date 10.7 cm A Index Kp Index
2010 Nov 17 90 7 3
2010 Nov 18 90 5 2
2010 Nov 19 90 7 3
2010 Nov 20 88 5 2
2010 Nov 21 86 5 2
2010 Nov 22 84 5 2
2010 Nov 23 84 5 2
2010 Nov 24 82 5 2
2010 Nov 25 82 5 2
2010 Nov 26 82 5 2
2010 Nov 27 82 5 2
2010 Nov 28 82 5 2
2010 Nov 29 82 5 2
2010 Nov 30 82 5 2
2010 Dec 01 82 5 2
2010 Dec 02 82 5 2
2010 Dec 03 82 5 2
2010 Dec 04 84 5 2
2010 Dec 05 84 5 2
2010 Dec 06 84 5 2
2010 Dec 07 85 5 2
2010 Dec 08 85 5 2
2010 Dec 09 85 5 2
2010 Dec 10 85 5 2
2010 Dec 11 85 5 2
2010 Dec 12 85 7 3
2010 Dec 13 85 7 3
(NOAA)